Occithrissops

Occithrissops is an extinct genus of prehistoric ray-finned fish of the Jurassic, described from Sundance Formation. The genus name of Occithrissops refers to the occidental occurrence of the genus and its relationship to Thrissops.^[1]

Description

Occithrissops reached length about 20 centimetres (7.9 in). Although it is placed within Ichthyodectiformes, it have some different characters compared to other Jurassic ichthyodectiform Thrissops and Allothrissops, and original description described this taxon as Ichthyodectiformes incertae sedis.^[1] Later study considered this taxon is basal ichthyodectiform, and shared some morphological similarities with Jinjuichthys.^[2]

See also

• Prehistoric fish
• List of prehistoric bony fish

References

• v
• t
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Teleostei sensu de Pinna, 1996 (= Teleosteomorpha)

Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Subclass: Neopterygii
Actinopterygii see Actinopterygii Neopterygii see Neopterygii Teleostei see below↓

Teleostei
Teleostei †Atacamichthys †Baleiichthys †Barschichthys †Bunoderma †Ceramurus †Dorsetichthys †Elpistoichthys †Eurycormus †Galkinia †Grimmenichthys †Hengnania †Hulettia? †Hungkiichthys †Ichthyokentema †Jialingichthys †Koonwarria †Ligulella †Luxembourgichthys †Majokia †Marcopoloichthys †Neobaleiichthys †Oligopleurus? †Pholidophorichthys †Pholidophoroides †Pholidophoropsis †Prohalecites †Ruedersdorfia †Seefeldia †Seinstedtia †Signeuxella †Pachycormidae Asthenocormus Australopachycormus Bonnerichthys Eugnathides? Euthynotus Germanostomus Haasichthys Hypsocormus Kaykay Leedsichthys Martillichthys Notodectes Ohmdenia Orthocormus Pachycormus Protosphyraena Pseudoasthenocormus Rhinconichthys Sauropsis Saurostomus Simocormus †Aspidorhynchidae Aspidorhynchus Belonostomus Jonoichthys Pseudovinctifer Richmondichthys Vinctifer †Pholidophoridae sensu stricto Annaichthys Ceneichthys Eopholidophorus Knerichthys Lombardichthys Malingichthys Parapholidophorus Pholidoctenus Pholidophoretes Pholidophorus Pholidorhynchodon Pseudopholidoctenus Zambellichthys †Archaeomaenidae Aphnelepis Archaeomaene Gurvanichthys Oreochima Wadeichthys Zaxilepis †Siyuichthyidae Bogdaichthys Dsungarichthys Manasichthys Siyuichthys Wukangia †Pleuropholidae Austropleuropholis Gondwanapleuropholis Parapleuropholis Pleuropholis Zurupleuropholis †Ankylophoridae Ankylophorus Lehmanophorus Neopholidophoropsis Pholidophoristion Siemensichthys Songaichthys Steurbautichthys †Catervariolidae Catervariolus Kisanganichthys Songanella Teleosts with cycloid scales see below↓ Otolith taxa †Archengraulis †Bicavolithus †Doggerichthys †Sphaeronchus †Xenoleptolepis

Teleosts with cycloid scales
Teleosts with cycloid scales †Antofagastaichthys †Araripichthys †Paraclupavus †Pholidolepis †Todiltia †Leptolepidae Leptolepis Longileptolepis Proleptolepis †Luisiellidae Cavenderichthys? Luisiella Waldmanichthys? †Ascalaboidae Ascalabos Ebertichthys Tharsis †Crossognathiformes Bavarichthys Chongichthys Salminops? Varasichthyidae? Bobbichthys Domeykos Luisichthys Protoclupea Varasichthys Notelopidae Bavarichthys? Michin? Notelops Nusaviichthys Crossognathidae Apsopelix Crossognathus Pachyrhizodontidae Apricenapiscis Aquilopiscis Cavinichthys Chongichthys? Elopopsis Goulmimichthys Greenwoodella Kradimus Lebrunichthys Michin? Motlayoichthys Nardopiscis Pachyrhizodus Platinx Polcynichthys Rhacolepis Stanhopeichthys Tingitanichthys †Ichthyodectiformes Africathrissops Allothrissops Altamuraichthys Antarctithrissops Ascalabothrissops? Capassoichthys Carsothrissops Dugaldia Faugichthys Furloichthys Garganoichthys Gillicus Occithrissops Ogunichthys Pachythrissops? Prymnetes Sultanuvaisia Thrissops Verraesichthys Chuhsiungichthyidae Chuhsiungichthys Jinjuichthys Mesoclupea Bardackichthyidae Amakusaichthys? Bardackichthys Heckelichthys? Cladocyclidae Aidachar Chirocentrites Chiromystus Cladocyclus Cladocynodon Eubiodectes Ichthyodectidae Cooyoo Ghrisichthys Ichthyodectes Postredectes Xiphactinus Saurodontidae Gwawinapterus Prosaurodon Saurocephalus Saurodon Unamichthys Vallecillichthys Crown-Teleostei see below↓

Crown-Teleostei
Elopomorpha see Elopomorpha †Orthogonikleithridae Cavenderichthys? Leptolepides Orthogonikleithrus Waldmanichthys? Osteoglossomorpha see Osteoglossomorpha †Tselfatiiformes Eoplethodus Protobramidae Abisaadichthys Eusebichthys Protobrama Plethodidae Bachea Bananogmius Concavotectum Dixonanogmius Enischnorhynchus Luxilites Martinichthys Moorevillia Niobrara Paranogmius Pentanogmius Plethodus Pseudonogmius Pseudothryptodus Rhamphoichthys Syntegmodus Thryptodus Tselfatia Zanclites Clupeocephala Otocephala Euteleostei