List of the Mesozoic life of Oregon

This list of the Mesozoic life of Oregon contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Oregon and are between 252.17 and 66 million years of age.

A

†Acanthocircus
- †Acanthocircus carinatus – or unidentified related form
- †Acanthocircus rotundus – or unidentified related form
†Acanthodiscus
- †Acanthodiscus subradiatus – or unidentified related form
Fossilized shells of the Early-Late Cretaceous marine bivalve Actinoceramus
†Actinoceramus
- †Actinoceramus salomoni
- †Actinoceramus subsulcatus
- †Actinoceramus sulcatus
†Agerchlamys
- †Agerchlamys boellingi
†Alpinophragmium – tentative report
†Amblysiphonella
- †Amblysiphonella steinmanni – or unidentified comparable form
- †Amblysiphonella timorica
†Ampakabastraea
- †Ampakabastraea cowichanensis
†Anahamulina
- †Anahamulina wilcoxensis
†Anatropites
†Andrazella
†Angulobracchia
- †Angulobracchia bulbosa
†Anoptychia
- †Anoptychia oregonensis – type locality for species
†Antexitus – type locality for genus
- †Antexitus inusitatus – type locality for species
- †Antexitus pessagnoi – type locality for species
- †Antexitus southforkensis – type locality for species
- †Antexitus yangi – type locality for species
†Anthostylis
- †Anthostylis acanthophora – or unidentified comparable form
†Antiquilima
†Apiotrigonia
- †Apiotrigonia condoni
†Arcavicula – tentative report
Life restoration of two species of the Late Triassic ammonoid cephalopod Arcestes
†Arcestes
- †Arcestes gigantogaleatus – or unidentified comparable form
†Archaeocenosphaera
- †Archaeocenosphaera laseekensis
†Archaeodictyomitra
- †Archaeodictyomitra exigua
- †Archaeodictyomitra primigena
†Archaeohagiastrum
- †Archaeohagiastrum munitum – or unidentified related form
- †Archaeohagiastrum oregonense – type locality for species
†Archaeospongoprunum
- †Archaeospongoprunum helense
- †Archaeospongoprunum praeimlayi
†Arietoceltites
Shell of a modern Astarte bivalve
Astarte
†Astraeomorpha
- †Astraeomorpha confusa
- †Astraeomorpha crassisepta
†Austrisaturnalis
- †Austrisaturnalis quadriradiatus – or unidentified related form

B

†Baccanella
†Badouxia
- †Badouxia canadensis – type locality for species
- †Badouxia columbiae
†Barbuta
- †Barbuta senecaensis – type locality for species
†Bennettazhia
- †Bennettazhia oregonensis – type locality for species
†Bistarkum
- †Bistarkum bifurcum – type locality for species
- †Bistarkum rigidium – type locality for species
- †Bistarkum saginatum – type locality for species
†Broctus
- †Broctus ruesti – type locality for species
†Buchia
- †Buchia pacifica
- †Buchia piochii
- †Buchia uncitoides – or unidentified comparable form
†Bulbocyrtium
- †Bulbocyrtium tubum – type locality for species

C

Cadulus
Fossilized shell of the Late Cretaceous ammonoid cephalopod Calycoceras
†Calycoceras
- †Calycoceras naviculare – type locality for species
†Camptonectes
†Canelonus
- †Canelonus conus – or unidentified comparable form
†Canoptum
- †Canoptum anulatum
- †Canoptum artum – type locality for species
- †Canoptum macoyense – or unidentified comparable form
- †Canoptum merum
- †Canoptum poissoni
- †Canoptum praeanulatum
- †Canoptum spinosum – type locality for species
†Cantalum
†Canutus
- †Canutus fusus – type locality for species
- †Canutus giganteus
- †Canutus indomitus
- †Canutus nitidus – type locality for species
- †Canutus rockfishensis
†Capnodoce
- †Capnodoce anapetes – or unidentified related form
- †Capnodoce angusta – type locality for species
- †Capnodoce antiqua – type locality for species
- †Capnodoce baldiensis – type locality for species
- †Capnodoce beaulieui – type locality for species
- †Capnodoce copiosa – type locality for species
- †Capnodoce extenta – type locality for species
- †Capnodoce fragilis – type locality for species
- †Capnodoce gracilis – type locality for species
- †Capnodoce insueta – type locality for species
- †Capnodoce kochi – type locality for species
- †Capnodoce malaca – type locality for species
- †Capnodoce media – type locality for species
- †Capnodoce minuscula – type locality for species
- †Capnodoce minuta – type locality for species
- †Capnodoce sinuosa – type locality for species
- †Capnodoce traversi
†Capnuchosphaera
- †Capnuchosphaera colemani – type locality for species
- †Capnuchosphaera deweveri
- †Capnuchosphaera schenki – type locality for species
- †Capnuchosphaera silviesensis – type locality for species
- †Capnuchosphaera smithorum – type locality for species
- †Capnuchosphaera sockensis – type locality for species
- †Capnuchosphaera soldierensis – type locality for species
- †Capnuchosphaera texensis – type locality for species
Cardinia
†Cardinioides
- †Cardinioides josephus
†Cassianella
- †Cassianella angusta
†Catoma – type locality for genus
- †Catoma concinna – type locality for species
- †Catoma geometrica – type locality for species
- †Catoma inedita – type locality for species
Life restoration of the Late Triassic-Middle Jurassic nautiloid cephalopod Cenoceras
†Cenoceras
- †Cenoceras lupheri – type locality for species
†Ceriostella
†Charlottea
- †Charlottea carterae – type locality for species
- †Charlottea weedensis – or unidentified comparable form
Chlamys
- †Chlamys mojsisovicsi
†Chondrocoenia
- †Chondrocoenia paradoxa
†Cleoniceras – tentative report
- †Cleoniceras dilleri – type locality for species
†Coccophyllum – tentative report
†Coelastarte
†Coenastraea
- †Coenastraea hyatti
†Colospongia
- †Colospongia utriculus
†Corum
- †Corum candidum – type locality for species
- †Corum parvum – type locality for species
†Crassistella
- †Crassistella juvavica
- †Crassistella vesiculosa – or unidentified comparable form
†Crenamussium
- †Crenamussium concentricum
Fossilized shell of the Early Cretaceous ammonoid cephalopod Crioceratites
†Crioceratites
†Crubus
- †Crubus chengi – type locality for species
- †Crubus firmus – type locality for species
†Crucella
- †Crucella angulosa – or unidentified comparable form
- †Crucella beata – type locality for species
- †Crucella concinna – type locality for species
- †Crucella jadeae – type locality for species
- †Crucella theokaftensis – or unidentified comparable form
†Cryptocoelia
†Cuifastraea
- †Cuifastraea granulata
†Cyathocoenia
- †Cyathocoenia gerthi – or unidentified comparable form

D

Dentalium
- †Dentalium stentor
†Diceratigalea
- †Diceratigalea mirus
- †Diceratigalea venustus
†Dichotomites
†Diplotremina
†Discamphiceras
- †Discamphiceras ornatum – type locality for species
†Discosiphonella
†Discotropites
†Distichophyllia
- †Distichophyllia norica
†Droltus
- †Droltus probosus
- †Droltus sanignacioensis
†Drulanta
- †Drulanta bella – type locality for species
- †Drulanta pulchra – type locality for species

E

†Elodium – tentative report
- †Elodium mackenziei
†Elysastraea
- †Elysastraea profunda
†Emiluvia
- †Emiluvia bacata – type locality for species
- †Emiluvia brevispina – type locality for species
- †Emiluvia goricanae – type locality for species
- †Emiluvia kozuri – type locality for species
- †Emiluvia oregonensis – type locality for species
- †Emiluvia parvinodosa – type locality for species
- †Emiluvia pessagnoi
†Empirea
†Endostoma
†Entolium
- †Entolium ceruleus – type locality for species
†Eocomoseris
- †Eocomoseris ramosa
†Erugonia
- †Erugonia canyonensis

F

†Fantus
- †Fantus exiguus – type locality for species
- †Fantus schoolhousensis – type locality for species
†Farcus
- †Farcus graylockensis
- †Farcus kozuri – type locality for species
- †Farcus lepidus – type locality for species
- †Farcus lipidus – or unidentified comparable form
- †Farcus multidorsus – type locality for species
†Fenestrula
- †Fenestrula jurassica – type locality for species
- †Fenestrula oregonensis – type locality for species
†Franziceras
- †Franziceras graylockense – type locality for species
†Frenguelliella – tentative report

G

†Gablonzeria
- †Gablonzeria profunda
Fossilized shell of the Carboniferous-Eocene bivalve Gervillia
†Gervillia
- †Gervillia angusta
†Gorgansium
- †Gorgansium beaverense – type locality for species
- †Gorgansium browni – type locality for species
- †Gorgansium morganense
- †Gorgansium silviesense
- †Gorgansium thayeri – type locality for species
- †Gorgansium vallieri
- †Gorgansium yangi – type locality for species
†Grammatodon
Interior and exterior of a fossilized shell of the Late Triassic-Eocene marine bivalve Gryphaea
†Gryphaea
- †Gryphaea arcuataeformis

H

†Hagiastrum
- †Hagiastrum macrum – type locality for species
- †Hagiastrum majusculum
†Hajarispongia
- †Hajarispongia whaleni – type locality for species
†Halobia
- †Halobia beyrichi
- †Halobia dilatata
- †Halobia halorica
- †Halobia oregonensis – type locality for species
- †Halobia radiata
- †Halobia salinarum
- †Halobia superba
†Halorella
†Hannaites
- †Hannaites riddlensis
- †Hannaites truncatus
†Hannaoceras
†Hemicryptocapsa
†Heptastylis
- †Heptastylis aquilae
- †Heptastylis oregonensis
†Hetalum – type locality for genus
- †Hetalum brevilabrum – type locality for species
†Higumastra
- †Higumastra angustabraccia – type locality for species
- †Higumastra exigua – type locality for species
- †Higumastra hui – type locality for species
- †Higumastra inflata – or unidentified comparable form
- †Higumastra laxa – type locality for species
- †Higumastra lupheri – type locality for species
- †Higumastra obesabraccia – type locality for species
- †Higumastra transversa
†Hilarisirex
- †Hilarisirex oregonensis
†Hiscocapsa
- †Hiscocapsa funatoensis
- †Hiscocapsa matsuokai – type locality for species
- †Hiscocapsa minuta – type locality for species
†Hollisites
- †Hollisites dichotomus – type locality for species
†Homoeoparonaella
- †Homoeoparonaella elegans
- †Homoeoparonaella hydensis – type locality for species
†Homolsomites
- †Homolsomites stantoni
†Hoplocrioceras
- †Hoplocrioceras remondi – or unidentified comparable form
Fossil of the Jurassic-Paleogene lobster Hoploparia
†Hoploparia
- †Hoploparia riddlensis – type locality for species
†Hsuum
- †Hsuum acutum – type locality for species
- †Hsuum belliatulum
- †Hsuum brevicostatum
- †Hsuum gratum – type locality for species
- †Hsuum lucidum – type locality for species
- †Hsuum lupheri
- †Hsuum mirabundum
- †Hsuum modicum – type locality for species
- †Hsuum parasolense
- †Hsuum parvulum – type locality for species
- †Hsuum robustum
- †Hsuum rosebudense
†Hyphantoceras
- †Hyphantoceras ceratopse – tentative report
- †Hyphantoceras irregulare – tentative report
†Hypophylloceras
- †Hypophylloceras onoense – or unidentified related form
- †Hypophylloceras onoensis – or unidentified related form

I

†Icrioma
- †Icrioma praecipua – type locality for species
- †Icrioma transversa – type locality for species
Fossilized shell of the Early Jurassic-Late Cretaceous marine bivalve Inoceramus with a human indicating its size
†Inoceramus
†Isocyprina

J

†Jaworskiella
- †Jaworskiella supleiensis – type locality for species
†Justium – type locality for genus
- †Justium medium – type locality for species
- †Justium novum – type locality for species
- †Justium robustum – type locality for species

K

†Kahlerosphaera
†Katroma
- †Katroma angusta – type locality for species
- †Katroma bicornus – type locality for species
- †Katroma clara – type locality for species
- †Katroma inflata – type locality for species
- †Katroma ninstintsi
- †Katroma pinquitudo – or unidentified comparable form
†Kilianella
- †Kilianella besairiei – or unidentified comparable form
†Krumbeckiella – tentative report
- †Krumbeckiella timorensis – tentative report
†Kuhnastraea
- †Kuhnastraea decussata
- †Kuhnastraea incrassata

L

†Lantus
- †Lantus obesus – type locality for species
- †Lantus sixi – type locality for species
†Lanubus
- †Lanubus alatus – type locality for species
- †Lanubus dickinsoni
- †Lanubus hattorii – type locality for species
- †Lanubus holdsworthi
- †Lanubus purus
†Laxuscingula – type locality for genus
- †Laxuscingula obesa
†Leugeo
- †Leugeo hullae – type locality for species
- †Leugeo ordinarius
- †Leugeo parvispinata
Lima
- †Lima spinigera
†Liostrea
- †Liostrea newelli
Electron micrograph of fossilized teeth from the Early Jurassic-Early Cretaceous freshwater shark Lissodus
†Lissodus
- †Lissodus weltoni – type locality for species
†Lithiotis
- †Lithiotis problematica
†Loffa
- †Loffa lepida – type locality for species
- †Loffa vesterensis – type locality for species
Lopha
†Lucina
†Lupherium
- †Lupherium nitidum
- †Lupherium snowshoense
Fossilized shell of the Early Cretaceous ammonoid cephalopod Lyelliceras
†Lyelliceras
†Lytoceras
- †Lytoceras aulaeum

M

†Maeandrostylis
- †Maeandrostylis grandiseptus – type locality for species
- †Maeandrostylis vancouverensis
Fossilized shell of the Late Cretaceous ammonoid cephalopod Mantelliceras
†Mantelliceras
- †Mantelliceras phoenixense – type locality for species
†Margarastraea
- †Margarastraea pulchra – type locality for species
†Margarosmilia – report made of unidentified related form or using admittedly obsolete nomenclature
- †Margarosmilia confluens
†Meleagrinella
†Metapolygnathus
- †Metapolygnathus nodosus
Milax
- †Milax alienus
- †Milax flexuosus
Miliolipora
†Minetrigonia
†Minutusolla – type locality for genus
- †Minutusolla yaoi – type locality for species

†Modiolus

†Monotis
- †Monotis subcircularis
†Montlivaltia – report made of unidentified related form or using admittedly obsolete nomenclature
†Multimonilis – type locality for genus
- †Multimonilis pulcher – type locality for species
- †Multimonilis splendidus – or unidentified comparable form
†Myophorella
- †Myophorella argo – or unidentified comparable form
- †Myophorella freboldi – type locality for species
†Myophorigonia
- †Myophorigonia kobayashii
†Mysidiella
- †Mysidiella americana – or unidentified comparable form
- †Mysidiella cordillerana
†Mysidioptera
- †Mysidioptera spinigera
- †Mysidioptera williamsi

N

Napora
- †Napora antelopensis
- †Napora aperta – type locality for species
- †Napora baumgartneri
- †Napora bearensis
- †Napora cerromesaensis
- †Napora cosmica – or unidentified related form
- †Napora insolita
- †Napora milleri
- †Napora morganensis
- †Napora opaca
- †Napora proba – type locality for species
- †Napora propria – type locality for species
- †Napora relica – type locality for species
†Neoconocaryomma – type locality for genus
- †Neoconocaryomma acusspina – type locality for species
- †Neoconocaryomma mixtura – type locality for species
- †Neoconocaryomma tantulimamma – type locality for species
- †Neoconocaryomma tripalmaspina – type locality for species
†Neogondolella
†Neowrangellium
- †Neowrangellium pessagnoi – type locality for species
Fossilized shell of the Jurassic-Cretaceous sea snail Nerinea
†Nerinea
†Nevadaphyllites
- †Nevadaphyllites compressus
Nodosaria – or unidentified comparable form
†Noritus
- †Noritus lillihornensis – or unidentified comparable form
- †Noritus pauxillus
- †Noritus tenuis – type locality for species
Nucinella – or unidentified comparable form

O

†Occidentocerithium – type locality for genus
- †Occidentocerithium panthalassicum – type locality for species
Fossilized shell of the Early Cretaceous ammonoid cephalopod Olcostephanus
†Olcostephanus
- †Olcostephanus pecki
- †Olcostephanus popenoei
†Ophthalmidium
†Oppelismilia
†Orbiculiforma
- †Orbiculiforma densaora – type locality for species
- †Orbiculiforma hexagonaora – type locality for species
- †Orbiculiforma iniqua
- †Orbiculiforma librataspira – type locality for species
- †Orbiculiforma multifora – or unidentified related form
- †Orbiculiforma sentarota – type locality for species
†Orbiculiformella
- †Orbiculiformella callosa
- †Orbiculiformella trispina – type locality for species
†Oregoniceras
- †Oregoniceras jacksonense – type locality for species
- †Oregoniceras jillsoni – type locality for species
- †Oregoniceras multicostum
- †Oregoniceras phoenixense – type locality for species
Shell of an Ostrea, or oyster
Ostrea
†Otoscaphites
- †Otoscaphites perrini
†Oxytropidoceras

P

†Pachus – tentative report
Fossilized shell of the Late Cretaceous ammonoid cephalopod Pachydiscus
†Pachydiscus
- †Pachydiscus ashlandicus – type locality for species
- †Pachydiscus oregonensis – type locality for species
†Pachyoncus
- †Pachyoncus crassus – type locality for species
- †Pachyoncus floreus – type locality for species
- †Pachyoncus tumidus
- †Pachyoncus varius
†Palaeodasycladus – tentative report
†Palaeosaturnalis
- †Palaeosaturnalis subovalis
†Palaxius
†Palinandromeda
- †Palinandromeda fimbria
†Pamiroseris
- †Pamiroseris meriani
- †Pamiroseris smithi
†Pantanellium
- †Pantanellium baileyi – type locality for species
- †Pantanellium butonense – type locality for species
- †Pantanellium cumshewaense
- †Pantanellium fosteri
- †Pantanellium foveatum
- †Pantanellium inornatum
- †Pantanellium latum – type locality for species
- †Pantanellium malheurense – type locality for species
- †Pantanellium pinguisfloreus – type locality for species
- †Pantanellium sincerum – type locality for species
- †Pantanellium ultrasincerum
- †Pantanellium vigrassi – type locality for species
- †Pantanellium wui – type locality for species
†Paradelphinulopsis – type locality for genus
- †Paradelphinulopsis vallieri – type locality for species
†Paradeningeria – tentative report
†Paradiscamphiceras
- †Paradiscamphiceras athabascanense
- †Paradiscamphiceras dickinsoni
- †Paradiscamphiceras elkhornense – type locality for species
†Parahsuum
- †Parahsuum formosum – type locality for species
- †Parahsuum hiconocosta
- †Parahsuum izeense
- †Parahsuum mostleri – type locality for species
- †Parahsuum officerense
- †Parahsuum publicum
- †Parahsuum sporta – type locality for species
- †Parahsuum vizcainoense
†Parallelodon
- †Parallelodon monobensis – or unidentified comparable form
†Parasaturnalis
- †Parasaturnalis diplocyclis – type locality for species
- †Parasaturnalis yehae – type locality for species
†Parasepsagon
- †Parasepsagon variabilis
†Parentactinia
- †Parentactinia nakatsugawaensis
†Parentactinosphaera – tentative report
- †Parentactinosphaera longispinosa
†Paronaella
- †Paronaella araneae
- †Paronaella bona – type locality for species
- †Paronaella curticrassa
- †Paronaella fera – type locality for species
- †Paronaella grahamensis
- †Paronaella kotura
- †Paronaella obesa
- †Paronaella pessagnoi
- †Paronaella pygmaea
- †Paronaella skowkonaensis
- †Paronaella snowshoensis – type locality for species
- †Paronaella venadoensis – or unidentified related form
†Parvicingula
- †Parvicingula blackhornensis
- †Parvicingula blackhorsensis
- †Parvicingula elegans
- †Parvicingula matura
- †Parvicingula media
- †Parvicingula praeacutum
†Parvifavus
- †Parvifavus irregularis
†Parvivacca
- †Parvivacca blomei – or unidentified comparable form
†Perispyridium
- †Perispyridium apertum – type locality for species
- †Perispyridium darwini
- †Perispyridium dettermani – or unidentified comparable form
- †Perispyridium dumitricai
- †Perispyridium facetum
- †Perispyridium gujohachimanense
- †Perispyridium oregonense – type locality for species
- †Perispyridium schopfi
- †Perispyridium tamarackense
- †Perispyridium whalenae – type locality for species
Fossil of the Devonian-Cretaceous sponge Peronidella
†Peronidella
†Phacelostylophyllum
- †Phacelostylophyllum zitteli
Pholadomya
†Phylloceras
- †Phylloceras umpquanum
†Phyllopachyceras
- †Phyllopachyceras trinitense
- †Phyllopachyceras umpquanum
†Plafkerium
- †Plafkerium robustum – type locality for species
†Plagiostoma – tentative report
†Planiinvoluta
†Platymya
- †Platymya rockymontana
†Pleesus
- †Pleesus aptus – type locality for species
†Pleuromya
†Pleuronectites
Plicatula
- †Plicatula hekiensis
†Poulpus
- †Poulpus haeckeli – type locality for species
- †Poulpus karnicus – type locality for species
- †Poulpus lupheri – type locality for species
†Praeconocaryomma
- †Praeconocaryomma decora – type locality for species
- †Praeconocaryomma parvimamma
- †Praeconocaryomma splendida – type locality for species
- †Praeconocaryomma whiteavesi
- †Praeconocaryomma yakounensis
†Praeparvicingula
- †Praeparvicingula burnsensis
- †Praeparvicingula communis
- †Praeparvicingula decora
- †Praeparvicingula grantensis
- †Praeparvicingula inornata
- †Praeparvicingula prisca
- †Praeparvicingula profunda
- †Praeparvicingula schoolhousensis
- †Praeparvicingula sodaensis
- †Praeparvicingula tlellensis
- †Praeparvicingula vera
†Procyclolites
†Promathildia
†Pronoella
- †Pronoella uintahensis
†Protorcula
- †Protorcula frydai
†Protunuma
- †Protunuma japonicus
†Pseudocrucella
- †Pseudocrucella hilara – type locality for species
- †Pseudocrucella ornata – type locality for species
- †Pseudocrucella pecta – type locality for species
- †Pseudocrucella prava
- †Pseudocrucella tangae – type locality for species
†Pseudoheliodiscus
†Pseudolimea
- †Pseudolimea naumanni
†Pseudopantanellium
- †Pseudopantanellium floridum – type locality for species
†Pseudopoulpus
- †Pseudopoulpus acutipodium – type locality for species
- †Pseudopoulpus deweveri – type locality for species
†Pseudoristola
- †Pseudoristola faceta – type locality for species
- †Pseudoristola megaglobosa – type locality for species
†Pseudosaturniforma
- †Pseudosaturniforma minuta
†Pseudospondylospira
- †Pseudospondylospira perplexa
†Pseudostylosphaera
- †Pseudostylosphaera japonica
- †Pseudostylosphaera magnispinosa – type locality for species
†Purpuroidea – report made of unidentified related form or using admittedly obsolete nomenclature
†Pylostephanidium

Q

†Quadrisaturnalis – type locality for genus
- †Quadrisaturnalis dickinsoni – type locality for species
- †Quadrisaturnalis grandis – type locality for species
- †Quadrisaturnalis quadratus – type locality for species
†Quarticella
- †Quarticella ovalis – or unidentified comparable form

R

†Radium – type locality for genus
- †Radium pessagnoi – type locality for species
†Recticostastraea – type locality for genus
- †Recticostastraea wallowaensis – type locality for species
†Renzium – type locality for genus
- †Renzium adversum – type locality for species
- †Renzium webergorum – type locality for species
†Retiophyllia
- †Retiophyllia dawsoni
- †Retiophyllia norica
- †Retiophyllia oppeli – or unidentified related form
- †Retiophyllia parviseptum
†Ristola
- †Ristola prisca
- †Ristola reliqua – type locality for species
- †Ristola turpicula
†Rolumbus
- †Rolumbus beatus – type locality for species
- †Rolumbus hilarus – type locality for species
- †Rolumbus lautus – type locality for species

S

†Saitoum
- †Saitoum coronarium – or unidentified comparable form
- †Saitoum dickinsoni – type locality for species
- †Saitoum smithi – type locality for species
- †Saitoum thayeri – type locality for species
†Salzburgia – tentative report
†Sarasinella
- †Sarasinella densicostata – or unidentified comparable form
- †Sarasinella hyatti
- †Sarasinella subspinosa – or unidentified comparable form
†Sarla
- †Sarla delicata – type locality for species
- †Sarla externa – type locality for species
- †Sarla formosa – type locality for species
- †Sarla plena – type locality for species
- †Sarla triangulata – type locality for species
- †Sarla vetusta – or unidentified related form
†Scalarites
- †Scalarites mihoensis
†Scaphites
- †Scaphites condoni
†Schistophylloceras
- †Schistophylloceras aulonotum – or unidentified related form
†Sepsagon
- †Sepsagon longispinosus
†Septocardia
Life restoration of three species of the Middle-Late Triassic ichthyosaur genus Shastasaurus
†Shastasaurus
- †Shastasaurus pacificus – or unidentified comparable form
†Silicarmiger
†Simbirskites
- †Simbirskites elatus – or unidentified related form
- †Simbirskites progrediens – or unidentified related form
†Sontonaella
- †Sontonaella concinna – type locality for species
- †Sontonaella spongiosa – type locality for species
†Spinidelphinulopsis – type locality for genus
- †Spinidelphinulopsis whaleni – type locality for species
†Spitidiscus
- †Spitidiscus oregonensis – type locality for species
†Spondylospira
- †Spondylospira lewesensis
- †Spondylospira tricosta
†Spongiomorpha
- †Spongiomorpha acyclica
- †Spongiomorpha gibbosa – or unidentified comparable form
- †Spongiomorpha tenuis
†Spongocapsula
- †Spongocapsula palmerae
†Spongostylus
- †Spongostylus carnicus
†Stauracontium – tentative report
- †Stauracontium trispinosum
†Stromatomorpha
†Stuoresia
- †Stuoresia libratosepta – or unidentified comparable form
†Stylophyllopsis
- †Stylophyllopsis lindstroemi – or unidentified comparable form
- †Stylophyllopsis rudis – or unidentified comparable form
†Stylophyllum
†Subprionocyclus
- †Subprionocyclus branneri
- †Subprionocyclus neptuni
- †Subprionocyclus normalis – type locality for species
†Sympolycyclus
†Syringocapsa
- †Syringocapsa turgida

T

†Tardentactinia
- †Tardentactinia oregonensis – type locality for species
†Teichertus
- †Teichertus pessagnoi – type locality for species
- †Teichertus splendidus
†Telacapsula – type locality for genus
- †Telacapsula johndayensis – type locality for species
- †Telacapsula littlescottyensis – type locality for species
- †Telacapsula odoghertyi – type locality for species
- †Telacapsula wangi – type locality for species
†Tetraditryma
- †Tetraditryma coldspringensis
- †Tetraditryma corralitosensis
- †Tetraditryma pseudoplena
†Tetragonites
- †Tetragonites glabrus
- †Tetragonites jacksonense – type locality for species
†Tetrarchiplagia
- †Tetrarchiplagia yehae
†Tetratrabs
- †Tetratrabs acutusspina – type locality for species
- †Tetratrabs izeensis – type locality for species
- †Tetratrabs robustusspina – type locality for species
Fossil of the Triassic-Eocene stony coral Thamnasteria
†Thamnasteria
- †Thamnasteria borealis
†Thamnasteriamorpha
- †Thamnasteriamorpha frechi
†Thecomeandra
- †Thecomeandra vallieri
†Thecosmilia – report made of unidentified related form or using admittedly obsolete nomenclature
†Thurmanniceras
- †Thurmanniceras jenkinsi
- †Thurmanniceras stippi – or unidentified comparable form
- †Thurmanniceras wilcoxi
†Thurstonia
- †Thurstonia gibsoni – or unidentified comparable form
†Tolypammina
†Tosapecten
- †Tosapecten subhiemalis
†Tozerium
†Tragodesmoceras
- †Tragodesmoceras ashlandicum
†Triactoma
- †Triactoma rosespitensis
†Triassocampe
- †Triassocampe exilis – type locality for species
- †Triassocampe illyrica
- †Triassocampe immaturum
- †Triassocampe pulchra – or unidentified comparable form
- †Triassocampe sulovensis
†Triassocingula
†Triassocyrtium – tentative report
Fossilized shell of the Permian-Paleocene marine bivalve Trigonia
†Trigonia
- †Trigonia montanaensis
†Trillus
- †Trillus elkhornensis
- †Trillus seidersi – type locality for species
†Tripocyclia
- †Tripocyclia brooksi
- †Tripocyclia smithi
- †Tripocyclia southforkensis
- †Tripocyclia wickiupensis
†Tritrabs
- †Tritrabs simplex
- †Tritrabs suavis
- †Tritrabs worzeli – or unidentified comparable form
†Triversus
- †Triversus fastigatus
Trochocyathus
- †Trochocyathus oregonensis – type locality for species
†Tropites
†Turanta
- †Turanta fida – type locality for species
- †Turanta morinae
- †Turanta nodosa
†Turristylus
- †Turristylus triadicus – or unidentified related form
Fossilized shells of the Late Jurassic-modern tower snail Turritella
Turritella
- †Turritella buwaldana
†Tutcheria
- †Tutcheria densestriata
- †Tutcheria densestriatum

U

†Undularia
†Unuma – tentative report
- †Unuma unicus – type locality for species
†Uvanella
- †Uvanella norica

V

†Vaugonia
- †Vaugonia oregonensis – type locality for species
- †Vaugonia yukonensis – tentative report
Venericardia
†Vermiceras
- †Vermiceras mineralense
- †Vermiceras morganense – type locality for species
- †Vermiceras rursicostatum – or unidentified related form
†Verticiplagia
- †Verticiplagia oregonensis – type locality for species
- †Verticiplagia verticillata
- †Verticiplagia yehae

W

†Wallowaconcha
- †Wallowaconcha raylenea
†Wallowanerita – type locality for genus
- †Wallowanerita newtonae – type locality for species
†Wellsia
- †Wellsia oregonensis
- †Wellsia packardi
- †Wellsia vigorosa
†Weyla
†Williriedellum
- †Williriedellum frequens
†Wilvemia
†Wrangellium
- †Wrangellium izeense – type locality for species
- †Wrangellium oregonense – type locality for species
- †Wrangellium thurstonense – or unidentified comparable form

X

†Xiphostylus
- †Xiphostylus communis – type locality for species
- †Xiphostylus fragilis
- †Xiphostylus halli
- †Xiphostylus logdellensis
- †Xiphostylus simplus – type locality for species
- †Xiphostylus sinuosus
- †Xiphostylus superbus
- †Xiphostylus vallieri
- †Xiphostylus whalenae
†Xiphotheca
†Xiphothecaella
- †Xiphothecaella longa

Y

†Yamatoum
†Yeharaia
- †Yeharaia elegans

Z

†Zardinia – tentative report
†Zartus
- †Zartus dickinsoni – type locality for species
- †Zartus imlayi – type locality for species
- †Zartus jonesi – type locality for species
- †Zartus jurassicus – type locality for species
- †Zartus praejonesi – type locality for species
- †Zartus thayeri – type locality for species
†Zoneait – type locality for genus
- †Zoneait nargorum – type locality for species
†Zugmayerella
- †Zugmayerella americana – type locality for species
- †Zugmayerella uncinata

References

Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.