Palæos:

  

Unit 400: Therapsida

The Vertebrates

330: Biarmosuchia: Ictidorhinidae / Hipposauridae

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Therapsida: Biarmosuchia: Ictidorhinidae / Hipposauridae

Abbreviated Cladogram

SYNAPSIDA
|
Therapsida
`-Raranimus
  |--Biarmosuchia
  |  |--Biarmosuchidae
  |  `--Ictidorhinidae
  |     `--Burnetiamorpha
  `-+--Eotitanosuchia
    `-Eutherapsida
      |--Dinocephalia
      `--+--Anomodontia
         |  |--Venyukovioidea
         |  `--Dicynodontia   
         `--Theriodontia
            |--Gorgonopsia
            `--+--Therocephalia
               `--CYNODONTIA

Contents

400.000 Overview
400.100 Therapsida
400.200 Ancestral forms
400.300 Biarmosuchia
   400.320 Biarmosuchidae / Eotitanosuchidae
   400.330 Ictidorhinidae / Hipposauridae
   400.340 Burnetiamorpha
400.400 Dinocephalia
400.500 Anomodontia
400.600 Dicynodontia
400.700 Theriodontia
400.800 Gorgonopsia
400.900 Therocephalia
Cladogram
References

Taxa on This Page

  1. Ictidorhinidae X

Biarmosuchia: Ictidorhinidae / Hipposauridae

Ictidorhinus martinsi

Ictidorhinus - Dicynodon zone, South Africa. This little animal (skull length about 5 cm) was among the last of the Biarmosuchia. Life reconstruction artwork by Smokeybjb - Wikipedia




Apologies for the paucity of material; more will be added to this page in due course....



Rubidgina, probably from Sigogneau-Russell (1989)Ictidorhinidae: (= Hipposauridae) Hipposaurus, Ictidorhinus, Lycaenodon, Pseudhipposaurus, Rubidgina.

Range: Late Permian of South Africa

Phylogeny: Biarmosuchia: Biarmosuchidae + * ::: Burnetiamorpha

Characters: "incipient" heeled incisors?

Comment: a paraphyletic group according to the cladogram given by Sidor & Welman 2003 pp.639


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