The origin and early diversification of tetrapods
Abstract
A series of new fossil discoveries, coupled with cladistic analysis of old and new data, is beginning to resolve the origin of tetrapods into a documented sequence of character acquisition. Devonian tetrapods were more fish-like than believed previously, whereas Lower Carboniferous tetrapod faunas contain early representatives of the amphibian and amniote lineages. These very different assemblages are separated by a 20-million-year Tournaisian gap' which has yielded very few tetrapod fossils.
- Publication:
-
Nature
- Pub Date:
- April 1994
- DOI:
- 10.1038/368507a0
- Bibcode:
- 1994Natur.368..507A