Osteolepidida

Osteolepidida
Temporal range: 396–299 Ma
Middle Devonian to Late Carboniferous
Osteolepis.
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Sarcopterygii
Subclass: Tetrapodomorpha
Superorder: Osteolepidida*
Clades

Osteolepidida, also known as osteolepiformes,[1] are a group of prehistoric lobe-finned fishes which appeared first time during the Devonian period. The order contains five families: Canowindridae, Megalichthyidae, Osteolepidae, Thysanolepidae 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 2 3 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. Bibcode:2012PLoSO...733683S. doi:10.1371/journal.pone.0033683. PMC 3308997. PMID 22448265.


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