Anisian
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Cherninia, giant temnospondyl from India

In the geologic timescale, the Anisian is the age of the Middle Triassic epoch and lasted from 245 million years ago until 237 million years ago, approximately. The Anisian age succeeds the Olenekian age of the Lower Triassic epoch and precedes the Ladinian age of the Middle Triassic epoch.

The earliest dinosaurs to date have been found in rock dating from the Anisian Age.[1]

Vertebrate Fauna

• Ichthyosaurs
• Prestosuchids
• Trigoniids

Archosauromorphs (non-archosaurians)

†Non-archosaurian Archosauromorphs of the Anisian
Taxa	Presence	Location	Description	Images
Erythrosuchus				Erythrosuchus

Therapsids (non-mammalian)

†Non-mammalian Therapsids of the Anisian
Taxa	Presence	Location	Description	Images
Kannemeyeria				Kannemeyeria.

Nothosauroids

Nothosauroids of the Anisian
Taxa	Presence	Location	Description	Images
Ceresiosaurus				Ceresiosaurus

Placodonts

Placodonts of the Anisian
Taxa	Presence	Location	Description	Images
Cyamodus				Cyamodus Paraplacodus
Paraplacodus

Thalattosaurians

Thalattosauria of the Anisian
Taxa	Presence	Location	Description	Images
Askeptosaurus		Italy	A very thin, elongated creature (about 2 meters long) that probably swam like an eel, that was probably a fish eater and hunted in deep waters, based on its large eyes (which would allow it to see better in dark water) and the protective bony ring around them (also seen in ichthyosaurs), which prevented them from getting squashed in by the immense water pressure at great depths.	Askeptosaurus

Invertebrate Fauna

Ceratitida

Ananorites Arthaberites Beyrichites Bosnites Buddhaites Bukowskiites Caucasites Danubites Gangadharites Japonites Laboceras Longobarditoides Mesocladiscites Noetlingites Parapinacoceras Parasageceras Phyllocladiscites Proavites Pseudodanubites Psilocladiscites Salterites Tropigymnites Xiphogymnites Pararcestes Sageceras

Lower

Alloptychites Anagymnites Grambergia Groenlandites Gymnites Lenotropites Pearylandites Silberlingites Isculites Stenopopanoceras

Middle

Acrochordiceras Alanites Anagymnotoceras Arctohungarites Balatonites Bulogites Cuccoceras Czekanowskites Epacrochordiceras Hollandites Huishuites Inaigymnites Ismidites Kiparisovia Malletophychites Nicomedites Phillipites Platycuccoceras Pronoetlingites Reiflingites Discoptychites Intornites Nevadisculites Paraceratites Parapopanoceras Proarcestes Longobardites Ptychites

Upper

Amphipopanoceras Aplococeras Arctogymnites Eudiscoceras Eutomoceras Gymnotoceras Halilucites Judicarites Kellnerites Metadinarites Nevadites Parakellnerites Proteusites Repossia Semiornites Serpianites Stoppaniceras Ticinites Tozerites Tropigastrites Joannites Epigymnites Ceratites Flexoptychites Frechites Norites Gevanites Hungarites

Phylloceratida

Spinoleiophyllites Ussurites Monophyllites

Nautilida

Trachynautilus Thuringionautilus Styrionautilus

Lower

Indonautilus Sibyllonautilus

Middle

Paranautilus

Upper

Holconautilus Proclydonautilus

Aulacocerida

Crassiatractites Breviatractites

Lower

Mojsisovicsteuthis

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