First Fossil Record of an Aquatic Caecilian (Gymnophiona: Typhlonectidae)

February 13, 2024

The caecilian fossil record is remarkably sparse. Although time-calibrated molecular phylogenies suggest that caecilians have existed for more than 200 million years, no fossil has been found that can be referred to any of the lineages living today (i.e., part of the caecilian crown group). Otávio…