Explore extinct life by their name
(i.e., genus)

Explore extinct life by family groupings
(i.e., cladistic relationships)

Explore extinct life by geological time period
(i.e., when the life form lived)

Explore extinct life by geographic location
(i.e., where the fossils were found)

Explore extinct life by paleontologist/author
(i.e., person(s) who named the life form)

Explore fantasy life forms shaped by the human mind and experience
(i.e., fictional creatures & monsters)

An introduction to the Extinct Life Pictorial Encyclopedia along with some statistics regarding what information is available

The Dinosaur Fan Non-sports Collectibles Digest

Fiction Novels Featuring Prehistoric Animals, Mutant Beasts & Primeval Man

Return to The Dinosaur Fan home page
General information & statistics pertaining to this section of the website
Opabinia C Opadothrips Opalia Opaliopsis Opallionectes P Opeamorphus
Opechinus Opella Opellianus Operchaliosteus Operchallosteus Opercularia
Operculina Operculinoides Opertochasma Opertorbitolites Opertum Opetiala
Opetionella Opetiosaurus Opheoceratites Opheodrys Ophiacantha Ophiacodon P C
Ophiactis Ophiarachna Ophiaulax Ophiaulaxoides Ophicardelus Ophiceras
Ophiderpeton P Ophidioceras Ophidion Ophidium Ophigraptus Ophileta
Ophiletina Ophilyroceras Ophioceras Ophiochiton Ophiocnida Ophiocoma
Ophiocrinus Ophiocrossota Ophiocten Ophioderma Ophiodermella Ophiodesia
Ophiodon Ophioflabellum Ophioglypha Ophioglyphoida Ophiohybris Ophiolancea
Ophiolepis Ophioliassica Ophioma Ophiomorpha Ophiomorphus Ophiomusium
Ophiomys Ophiomyxa Ophionautilus Ophiopetra Ophiopeza Ophiopholis
Ophiopinna Ophiopolytretus Ophiopsammus Ophiopsis Ophiorhabdoceras Ophioscolex
Ophiosema Ophiosmilax Ophiothela Ophiothrix Ophiotitanos Ophiotrapezium
Ophiotrigonum Ophioxenikos Ophiozonella Ophipseudopus Ophiraphidites Ophisauriscus
Ophisaurus Ophismoblatta Ophisthoproctus Ophisurus Ophiura Ophiuraster
Ophiurella Ophiuricoma Ophiurina Ophiuriocoma Ophiurites Ophiurocrinus
Ophryaster Ophryastes Ophryastites Ophryotrocha Ophrysia Ophrystoma
Ophthalmapseudes Ophthalmidium Ophthalmipora Ophthalmocoris Ophthalmoplax Ophthalmosaurus C
Ophthalmoxyela Opikatia Opikella Opikina Opilioacarus P Opiliotarbus
Opimaphora Opimaria Opimilda Opimocythere Opiotoptera Opiparifungivora
Opipeuter Opipeuterella Opiphyllum Opis Opisconidion Opiselleipon
Opismoblatta Opisoma Opisopneustes Opissaster Opisthias C Opisthocladus
Opisthocoelicaudia P C Opisthocoelus Opisthoctenodon Opisthodactylus Opisthomyzon Opisthonema
Opisthoparia Opisthophylax Opisthophyllum Opisthoplax Opisthopsalis Opisthoptera
Opisthornithopora Opisthotreta Opisthotrigonia Opisthotriton Opistopteryx Oplegnathus
Oplidactylapes Oplophorus Oplosaurus P Opoa Opolanka Oppelia
Oppelisiilia Oppelismilia Oppenheimiella Oppenheimopecten Oppilatala Oppites
Oppligera Opsanus Opsiclaenodon Opsiconidion Opsidiscus Opsieobuthus
Opsimasaphus Opsiocrinus Opsiomylacris Opsiosoryctocephalus Opsis Opsithrissops
Opsypharus Opter Opthalmosaurus C Optivus Optoturris Opularca
Oracanthus Oracardia Oradectes Orangemeryx Orangictis Orania
Oraniceras Orapaeus Orapauletes Orapia Orasius Orastrum
Oratoceras Oravaichnium Orbablattula Orbiasterocyathus Orbiblastus Orbicapitia
Orbicapitis Orbicella Orbicoelia Orbicoscinus Orbicula Orbiculatisinurostrum
Orbiculatisiurostrum Orbiculiforma Orbiculiformella Orbiculoidea Orbiculopecten Orbiculopora
Orbiculothyris Orbicyathellus Orbicyathus Orbigastrula Orbignya Orbignyana
Orbignyceras Orbignycoenia Orbignycrinus Orbignyella Orbignygyra Orbignyna
Orbignyopora Orbilabia Orbinaria Orbipora Orbiramus Orbirhynchia
Orbis Orbitammina Orbitaphis Orbitestella Orbithele Orbitoclypeus
Orbitocyclina Orbitoides Orbitokathina Orbitolina Orbitolinella Orbitolinopsis
Orbitolites Orbitoplax Orbitoproetus Orbitopsella Orbitremites Orbitulipora
Orbula Orbulina Orbulinoides Orca C Orcadia Orcanopterus
Orchesteropus Orchidea Orchimomys Orchonoceros Orcinus Orcofabella
Orcomimus Orcopsis Orculiella Ordinacrinus Ordinatus Ordinisabulo
Ordoceras Ordogeisonoceras Ordolagus Ordolestes Ordoniya Ordosaspis
Ordosemys Ordosia Ordosiodon Ordosoceras Ordovicia Ordovicina
Ordovizona Oreadella Oreamnos Oreaspis Oreaster Orechina
Orecopia Orectochilus Orectodictya Orectoloboides Orectolobus Orectospira
Orecyta Oredezhosteus Oregonia Oregonites Oregonomys Oreinotherium
Oreisator Orelladjidaumo Orenburgella Orenburgia Oreochima Oreochromis
Oreodon C Oreodontoides Oreokora Oreolagus Oreonager Oreonagor
Oreonetes Oreophlebia Oreopholus Oreopithecus Oreopterella Oreopteron
Oreotalpa Oreoterebra Oreotragus Orephasma Orestia Orestiacanthus
Orestias Orestites Oretia Organoceras Orhomalus Oriadubitherium
Oribatella P Orichalcum Oricilla Orictocara Oridorsalis Orienicydnus
Oriensarctos Oriensellina Oriensictis Orienspterodon Orientalina Orientalla
Orientalomys Orientastromus Orientella Orienticyathus Orientina Orientisargus
Orientocylindrodon Orientognathus P Orientolophus Orientospira Orientospirifer Orientothyris
Orienturus Orietalia Originicorizus Origoasilus Origostrophia Orinella
Orinosaurus P Oriocrassatella Oriomeryx Oriomphalus Orionastraea Orionina
Orionoides Oriostoma Oriskania Orithopsis Orithostella Oriundogutta
Orkekeia Orkoraptor P Orlinocyathus Orlovia Orlovicavina Orlovichthys
Orloviella Orlovirhynchia Ormastralium Ormathichnus Ormathops Ormenis
Ormistonaspis Ormistonella Ormistonia Ormistoniella Ormoceras Ormosia
Ornamentaria Ornamentaspis Ornamentifera Ornatanomalina Ornategulum Ornathiliabrilance
Ornaticannula Ornaticosta Ornaticostella Ornatifilum Ornatilabrilancea Ornatisaturnalis
Ornatoclymenia Ornatoleberis Ornatophyllum Ornatoporta Ornatoptygmatis Ornatoscyllium
Ornatoserra Ornatosinuitina Ornatospira Ornatothyrella Ornatothyris Ornatus
Ornimegalonyx P Ornithaptera Ornithaster Ornithella Ornithichnites Ornithocheirus P C
Ornithodesmus P C Ornithoformipes Ornithoidichnites Ornithoidipus Ornitholestes P C Ornitholithus
Ornithomimipus P Ornithomimoides P Ornithomimus P C Ornithopecten Ornithopodichnites Ornithopodichnus P
Ornithoprion Ornithopsis P Ornithorhynchus Ornithosoma Ornithostoma P Ornithosuchus C
Ornithotarnocia Ornithothyris Ornitocnemus Ornollus Ornopsis Ornothyrella
Orobates Orobias Orobitella Orocystites Orodes Orodromeus P C
Orodus Orogomys Orohippus Oroklambda Oromeryx Orometopus
Oromycter Orontium Oropentatoma Oropeza Orophocrinus P Orophodon
Orophosaurus Oropycnodus Oropyctis Ororaphidia Oroseris Orospheciom
Orospira Orostaurs Orovenator Orozoe Orphanaspis Orpodon
Orrhodomala Orria Orriella Orrorin Orsadesmus Orsobrachyceron
Orstenotubulus Orta Ortalestes Ortalis Ortelytron Orthacanthacris
Orthacanthus P Orthacodus Orthaeschnites Orthakrolophos Orthambonites Orthaspidoceras
Orthaspidotherium Orthaster Orthaulax Orthechinorhinus Orthechioceras Orthella
Orthemis Orthidiella Orthidium Orthiella Orthildaites Orthis
Orthisocrania Orthoarthrus Orthobairdia Orthocardium Orthocarina Orthoceltites
Orthocera Orthoceras Orthoceros Orthochetus Orthochilus Orthocidaris
Orthoconorca Orthoconus Orthocormus Orthocosta Orthocrinus Orthocyathus
Orthocycloceras Orthocyclus Orthocypris Orthodactylites Orthodactylus Orthodesma
Orthodiscus Orthodochmioceras Orthodon Orthodontiscus Orthodorsum Orthogarantiana
Orthogeniops Orthogenysuchus Orthogeomys Orthogonikleithrus Orthogoniosaurus Orthogonium
Orthogonoceros Orthogonocrinus Orthogonoides Orthogonophora Orthograptus Orthokarstenia
Ortholina Ortholites Ortholophodon Orthomerus P Orthomorphina Orthomyalina
Orthomyctera Orthomylacris Orthomys Orthonaria Orthonema Orthoneurites
Orthonota Orthonotacythere Orthonotella Orthonybyoceras Orthonychia Orthonyx
Orthopelta Orthophlebia Orthophlebioides Orthophyia Orthophyllum Orthopleura
Orthopora Orthopristis Orthoprosbole Orthopsis Orthopsocus Orthopteryx
Orthoptychus Orthoptyxis Orthoretiolites Orthorhynchula Orthorhynchuloides Orthorhyncula
Orthorizoceras Orthosaurus Orthoscytina Orthosphinctes Orthospira Orthospirifer
Orthostomia Orthostrophella Orthostrophia Orthostylus Orthosuchus Orthosurcula
Orthotarbus Orthotetella Orthotetes Orthotetina Orthotetoides Orthotheca
Orthothetina Orthothrix Orthothyris Orthotichia Orthotoma Orthotrigonia
Orthotrinacria Orthotropia Orthovertella Orthoxyela Orthoyoldia Orthriochiton
Orthriocorisa Orthrioscincus Orthrozanclus Orthurus Ortmannia Ortmannispongia
Ortonella Ortonia Ortotherium Oruatemanua Orulgania Orulganites
Orusia Orvikuina Orycterocetus Orycteropus Oryctoantiquus Oryctobaissodes
Oryctoblattina Oryctocara Oryctocare Oryctocarella Oryctocephalina Oryctocephalites P
Oryctocephaloides Oryctocephalops Oryctocephalus Oryctochlus Oryctoderma Oryctodiplax
Oryctodromeus P Oryctogma Oryctolagus Oryctometopus Oryctomya Oryctomylabris
Oryctopterus Oryctoscirtetes Oryctothemis Oryctoxyela Orygmaspis P Orygmatos
Orygmatosphaeridium Orygmophyllum Orygotherium Oryssus Oryx Oryzomys

Name The name (genus) of the life form.
  Life Form Family Group  The family group to which the life form belongs.
This life form is Globally Extinct.  or  At least one species of this life form still exists today.  The 'cross' symbol indicates that this life form is globally extinct whereas the 'heart' symbol indicates that at least one species of this life form still exists today.
Pictures (artist illustrations and/or photos of fossils) are available in the detail page
Images of collectibles (scans/photos of cards, stickers, etc.) are available in the detail page

Return to top of this page