Palaeocarcharodon
Appearance
Palaeocarcharodon Temporal range:
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Fossil teeth of Palaeocarcharodon orientalis (the largest three) from Khouribga (Morocco), alongside teeth of Otodus | |
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Chondrichthyes |
Subclass: | Elasmobranchii |
Subdivision: | Selachimorpha |
Order: | Lamniformes |
Family: | †Otodontidae |
Genus: | †Palaeocarcharodon Casieer, 1960 |
Species: | †P. orientalis
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Binomial name | |
†Palaeocarcharodon orientalis (Sinzow, 1899)
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Palaeocarcharodon, also known as the pygmy white shark, is a genus of shark within the family Otodontidae[1] that lived about 61.7 to 55.8 Ma during the Paleocene. It currently contains a sole species P. orientalis.[2]
Description
Teeth of Palaeocarcharodon are triangular, labio-lingually compressed, with quite irregular serrations and serrate lateral cusplets. They can reach a size of about 3–6 centimetres (1.2–2.4 in).[3]
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Tooth of Palaeocarcharodon from Atlas mountain in Morocco. 60 mya, long 3 cm.
References
- ^ Mikael Siverson; Johan Lindgren; Michael G. Newbrey; Peter Cederström; Todd D. Cook (2013). "Cenomanian–Campanian (Late Cretaceous) mid-palaeolatitude sharks of Cretalamna appendiculata type". Acta Palaeontologica Polonica. 60 (2): 339–384. CiteSeerX 10.1.1.1027.6182. doi:10.4202/app.2012.0137.
- ^ "Small vertebrates from the Late Cretaceous and early Tertiary of the northeastern Aral Sea Region, Kazakhstan". Journal of Paleontology. 75 (2): 390–400. 2001. doi:10.1666/0022-3360(2001)075<0390:svftlc>2.0.co;2.
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ignored (help) - ^ G. R. Case. - Palaeocarcharodon Orientalis (SINZOW) (Neoselachii: Cretoxyrhinidae), from the Paleocene of Maryland - Lab. de Paléontologie des Vertébrés, 1989