Acanthostega

Acanthostega
Temporal range: Late Devonian (Famennian), 365 Ma
Skeletal reconstruction
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Sarcopterygii
Clade: Tetrapodomorpha
Clade: Stegocephali
Family: Acanthostegidae
Jarvik, 1952
Genus: Acanthostega
Jarvik, 1952
Species:
A. gunnari
Binomial name
Acanthostega gunnari
Jarvik, 1952

Acanthostega (meaning "spiny roof") is an extinct genus of stem-tetrapod, among the first vertebrate animals to have recognizable limbs. It appeared in the late Devonian period (Famennian age) about 365 million years ago, and was anatomically intermediate between lobe-finned fishes and those that were fully capable of coming onto land.[1][2]

  1. ^ Benton, Michael J. (2019). "Acanthostega". Vertebrate Palaeontology (Kindle ed.). Wiley. p. 90.
  2. ^ [1] Archived February 25, 2007, at the Wayback Machine