Biology:Podocnemis
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Short description: Genus of turtles
| Podocnemis | |
|---|---|
| |
| Podocnemis unifilis, yellow-spotted river turtle | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Testudines |
| Suborder: | Pleurodira |
| Family: | Podocnemididae |
| Genus: | Podocnemis Wagler, 1830 |
| Species | |
|
6 species, see text | |
Podocnemis is a genus of aquatic turtles, commonly known as South American river turtles, in the family Podocnemididae. The genus consists of six extant species occurring in tropical South America.[1] Three additional species are known only from fossils.
Species
These six species are extant.[1]
- Podocnemis erythrocephala (Spix, 1824) – red-headed Amazon River turtle
- Podocnemis expansa (Schweigger, 1812) – Arrau turtle
- Podocnemis lewyana A.H.A. Duméril, 1852 – Magdalena River turtle
- Podocnemis sextuberculata Cornalia, 1849 – six-tubercled Amazon River turtle
- Podocnemis unifilis Troschel, 1848 – yellow-spotted river turtle, yellow-headed sideneck[2]
- Podocnemis vogli L. Müller, 1935 – savanna side-necked turtle
Nota bene: A binomial authority in parentheses indicates that the species was originally described in a genus other than Podocnemis.
Fossil species
The following four species are extinct, all from Neogene deposits in South America:
- Podocnemis bassleri †
- Podocnemis medemi †[3]
- Podocnemis pritchardi †[3]
- Podocnemis tatacoensis †Cadena & Vanegas, 2023.[4]
The Late Cretaceous (Cenomanian) species "Podocnemis" parva Haas, 1978, based on remains from the West Bank, is now assigned to Algorachelus, as A. parvus.[5]
References
- ↑ 1.0 1.1 Podocnemis. The Reptile Database. www.reptile-database.org.
- ↑ Yellow-headed sideneck, iNaturalist
- ↑ 3.0 3.1 Wood RC (1997). "Turtles". In: Kay RF, Madden RH, Cifelli RL, Flynn JJ (editors). Vertebrate Paleontology in the Neotropics. The Miocene Fauna of La Venta, Colombia. Washington, District of Columbia: Smithsonian Institution Press.
- ↑ Cadena, Edwin-Alberto; Vanegas, Rubén Dario (2023). "A new fossil turtle ends the controversy on the occurrence of the extant genus Podocnemis Wagler, 1830 at the Miocene fauna of La Venta, Colombia". Geodiversitas 45 (3): 127–138. doi:10.5252/geodiversitas2023v45a3. https://sciencepress.mnhn.fr/en/periodiques/geodiversitas/45/3. Retrieved 2023-02-27.
- ↑ Pérez-García, A. (2018). "New information on the Cenomanian bothremydid turtle Algorachelus based on new, well-preserved material from Spain". Fossil Record 21 (1): 119–135. doi:10.5194/fr-21-119-2018.
Further reading
- Boulenger GA (1889). Catalogue of the Chelonians, Rhynchocephalians, and Crocodiles in the British Museum (Natural History). New Edition. London: Trustees of the British Museum (Natural History). (Taylor and Francis, printers). x + 311 pp. + Plates I-III. (Genus Podocnemis, pp. 200–201, Figures 50–51).
- Goin CJ, Goin OB, Zug GR (1978). Introduction to Herpetology, Third Edition. San Francisco: W.H. Freeman and Company. xi + 378 pp. ISBN:0-7167-0020-4. (Podocnemis, pp. 149, 271–272).
- Wagler J (1830). Natürliches System der AMPHIBIEN, mit vorangehender Classification der SÄUGTHIERE und VÖGEL. Ein Beitrag zur vergleichenden Zoologie. Munich, Stuttgart and Tübingen: J.G. Cotta. vi + 354 pp. + one plate. (Podocnemis, new genus, p. 135). (in German and Latin).
Wikidata ☰ Q969512 entry
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