Cryptodira
The Cryptodira (Greek: hidden neck) are a suborder of Testudines that includes most living tortoises and turtles. Cryptodira differ from Pleurodira (side-necked turtles) in that they lower their necks and pull the heads straight back into the shells, instead of folding their necks sideways along the body under the shells' marginals. They include among their species freshwater turtles, snapping turtles, tortoises, softshell turtles, and sea turtles.
| Cryptodira Temporal range: | |
|---|---|
| Aldabra giant tortoise (Aldabrachelys gigantea) | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Testudines |
| Suborder: | Cryptodira Cope, 1868 |
| Subgroups | |
|
See text | |
| Synonyms | |
|
Cryptoderes Duméril and Bibron, 1834
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