Osteolepidida

Osteolepidida
Temporal range: 396–299Ma

Middle Devonian to Late Carboniferous

Osteolepis.
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Sarcopterygii
Subclass: Tetrapodomorpha
Superorder: Osteolepidida*
Clades

Osteolepidida are a group of prehistoric lobe-finned fishes which appears first time during the Devonian period. The order contains five families: Canowindridae, Elpistostegidae, Megalichthyidae, Osteolepidae and Tristichopteridae. The superorder is generally considered to be paraphyletic because the characters that define it are mainly attributes of stem tetrapodomorphs.[1]

Below is a cladogram showing the paraphyly of Osteolepiformes compiled and modified from Ahlberg and Johanson (1998).[1] See also Swartz 2012.[2] The Osteolepiformes are marked by the green bracket.

Tetrapodomorpha

Kenichthys



Rhizodontida

 Barameda



 Gooloogongia






 Gogonasus 



 Osteolepis 







 Megalichthys 



 Cladarosymblema 




 Ectosteorhachis 





 Medoevia 






 Koharolepis 



 Canowindra 




 Beelarongia 





 Gyroptychius 



Tristichopteridae





 Eusthenodon 



 Mandageria 




 Cabonnichthys 




 Platycephalichthys 




 Jarvikina 




 Eusthenopteron 



 Tristichopterus 





Panderichthys


Tetrapoda

Acanthostega



Ichthyostega












Osteolepidida

References

  1. 1.0 1.1 Ahlberg, P. E.; Johanson, Z. (1998). "Osteolepiforms and the ancestry of tetrapods" (PDF). Nature 395 (6704): 792–794. Bibcode:1998Natur.395..792A. doi:10.1038/27421.
  2. Swartz, B. (2012). "A marine stem-tetrapod from the Devonian of Western North America". PLoS ONE 7 (3): e33683. doi:10.1371/journal.pone.0033683. PMC 3308997. PMID 22448265.

External links