- Animal Diversity Web Family Carettochelyidae (Pignose Turtles)
- Provides information on species, morphology, phylogeny and distribution. With links.
- Carettochelys.com
- Contains extracts from a catalogue by Gray, JE.
- Digimorph Carettochelys
- Features appearance, distribution, origin, morphology and phylogeny. With images.
- Family Carettochelyidae (Pignose Turtles)
- Brief article looks at appearance, distribution, habitat, size, and food.
- IUCN Red List: Carettochelys insculpta
- Provides taxonomy, assessment, range, habitat, and threats.
- MavicaNET: Carettochelyidae
- Gives results of online search for resources and information.
- Molecular Evidence for Higher Relationships Among Turtles
- Presents data on phylogeny of major lineages of living turtles. With taxonomic tree.
- Phylogenetic Relationships of Soft-shelled Turtles
- Contains data and abstract on this article. By Meylan, Peter A.
- Pitted Shell Turtle Encyclopedia Britannica
- Overview and links to other encyclopedia entries.
- Turtles of the World Carettochelyidae Carettochelys
- Contains species names and distribution.
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