Problems of the interrelationships of crown and stem amniotes

• Published in: Frontiers in earth science (Lausanne) Vol. 12
• Main Author: Modesto, Sean P.
• Format: Journal Article
• Language: English
• Published: Frontiers Media S.A 02.04.2024
• Subjects: Amniota; Diadectomorpha; evolution; phylogeny; Recumbirostra

Amniota is a tetrapod group that was recognized originally in the 19th century on the basis of developmental features (extra-embryonic membranes), but since the widespread adoption of phylogenetic systematics in the late 20th century, it has been recast as a crown clade. The oldest amniotes are Late...