Podocnemis

Podocnemis
Temporal range: Miocene–Recent
Podocnemis unifilis,
yellow-spotted river turtle
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Testudines
Suborder: Pleurodira
Family: Podocnemididae
Subfamily: Podocnemidinae
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] Four additional species are known only from fossils. These turtles have pig-like noses but are not closely related to the pig-nosed turtle.

Species

These six species are extant.[1]

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:

Cast of the skull of the extinct species P. bassleri (AMNH 1662)

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. ^ a b Podocnemis. The Reptile Database. www.reptile-database.org.
  2. ^ Yellow-headed sideneck, iNaturalist
  3. ^ a b 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.
  4. ^ 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. S2CID 257258234. Retrieved 2023-02-27.
  5. ^ 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. Bibcode:2018FossR..21..119P. 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).

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