Dossier
stomach
Coverage of stomach in the Nexus archive.
- Triassic fish for lunch? Chinese fossil reveals oldest preserved reptile stomach
A Chinese-led team discovered a 240 million-year-old Austronaga minuta fossil with the oldest preserved reptile stomach, liver, and intestinal soft tissue, suggesting early marine colonization by archosaurs. The fossil's aquatic adaptations challenge previous assumptions about reptile evolution during the Early Triassic period.