Osteolepiformes

From Wikipedia, the free encyclopedia
Jump to: navigation, search
See also: Osteolepidida
Osteolepiformes
Temporal range: 396–299 Ma
Middle Devonian to Late Carboniferous
Osteolepis BW.jpg
Osteolepis
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Sarcopterygii
Clade: Tetrapodomorpha
Order: Osteolepiformes
Families

Osteolepiformes, also known as megalichthyiformes,[1] are a group of prehistoric lobe-finned fishes which first appeared during the Devonian period. The order contains two families: Megalichthyidae and Osteolepidae. The Order is generally considered to be paraphyletic because the characters that define it are mainly attributes of stem tetrapodomorphs.[2]

Below is a cladogram showing the Osteolepiformes modified from Swartz 2012.[1]


Osteolepiformes

Gogonasus andrewsae Long 1985




Gyroptychius Jarvik 1948




Osteolepidae




Medoevia lata Lebedev 1995



Megalichthyidae Long 1985







References[edit]

  1. ^ a b 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 3308997Freely accessible. PMID 22448265. 
  2. ^ 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.