Definition of Trionychids. Meaning of Trionychids. Synonyms of Trionychids

- Unlike the temperature-dependent **** determination of most turtles, Trionychids have ZZ/ZW genetic **** determination; microchromosomes play a role in...
-   Extinct in the wild (EW): 2 species   Critically endangered (CR): 196 species   Endangered (EN): 382 species   Vulnerable (VU): 411 species   Near threatened...
-   Extinct in the wild (EW): 2 species   Critically endangered (CR): 196 species   Endangered (EN): 382 species   Vulnerable (VU): 411 species   Near threatened...
- originated in North America during or shortly before the Campanian from basal trionychids that dis****d from Asia. They reached their peak diversity from the...
- ontogeny. A study on the s**** histology of Maastrichtian and Paleocene trionychids is published by Ong, Snively & Woodward (2025). Jannello et al. (2025)...
- of the holotype and referred specimens were later found to belong to trionychid turtles, and it is unclear whether further analysis of potential non-dromaeosaurid...
-   Extinct in the wild (EW): 2 species   Critically endangered (CR): 196 species   Endangered (EN): 382 species   Vulnerable (VU): 411 species   Near threatened...
- carapace by a strong bony bridge, rather than the soft margin of the trionychids. The pig-nosed turtle is not completely aquatic. Little is known about...
- Nemegtemys is an extinct genus of cyclanorbine trionychid that lived during the Late Cretaceous epoch. Fossils of N. conflata are known from the Nemegt...
- skull-based trionychid from the Cretaceous. The side of the maxillary makes up a beak-like structure, an unusual feature of trionychids. One skull, ZIN...