Overview
Scientists described a fossil of the long-necked marine reptile *Austronaga minuta* from China. This specimen, approximately 245 million years old, provides insight into the internal organ structure of the species. The research team included Dr. Stephan Spiekman, a paleontologist affiliated with the State Museum of Natural History Stuttgart and the University of Hohenheim.
Research Context
The reptile *Austronaga minuta* is recognized as a descendant of land-dwelling reptiles. Despite this terrestrial ancestry, the species demonstrated adaptations to aquatic life approximately 245 million years ago. The fossil under study offers a unique view into these adaptations through the preservation of its internal anatomy.
Findings
The fossil of *Austronaga minuta* from China uniquely preserved internal organs. This preservation allowed for the observation of internal anatomical features in a marine reptile from 245 million years ago. The discovery provides evidence that *Austronaga minuta* had already developed significant adaptations for an aquatic existence during that period, despite its lineage tracing back to terrestrial reptiles.
Why This Matters
The discovery of preserved internal organs in *Austronaga minuta* provides direct evidence regarding the anatomical adaptations of early marine reptiles. This offers specific data for understanding the evolutionary transition from land to water in certain reptilian lineages.