| Helochelydridae Temporal range:
| |
|---|---|
| |
| Helochelydra nopcsai skull | |
| |
| Shell of Naomichelys | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Clade: | Pantestudines |
| Clade: | Testudinata |
| Clade: | Perichelydia |
| Family: | †Helochelydridae Nopsca, 1928 |
| Genera | |
|
See text | |
| Synonyms[1] | |
|
Solemydidae Lapparent and Murelaga 1997 | |
The Helochelydridae are an extinct family of stem-turtles known from fossils found in North America and Europe spanning the Early to Late Cretaceous.[1][2]
- ^ a b Cite error: The named reference
fossilworkswas invoked but never defined (see the help page). - ^ Joyce WG; Rabi M; Clark JM; Xu X. (2016). "A toothed turtle from the Late Jurassic of China and the global biogeographic history of turtles". BMC Evolutionary Biology. 16 (1): 236. doi:10.1186/s12862-016-0762-5. PMC 5084352. PMID 27793089.