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Pirodus

Pirodus
Temporal range: Carboniferous Moscovian
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Order: Eugeneodontiformes
Family: Caseodontidae
Genus: Pirodus
Species:
P. conicus
Binomial name
Pirodus conicus
Lebedev, 2001

Pirodus is an extinct genus of caseodontid eugeneodont from the Carboniferous of Russia. The genus includes a single species, P. conicus, which is known only from a single, incomplete fossil of its lower teeth. These teeth were fused together and sat along the midline of the jaw.[1]

Discovery

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The holotype specimen of Pirodus was described by researcher Oleg Lebedev in a 2001 paper, and originated from the Shchurovo-Korobcheyevo Formation of Moscow Oblast, Russia.[1]

Description

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Pirodus is known from a fragment of a tooth-whorl surrounded by dermal denticles. The tooth-whorl of this taxon consisted of a single fused base (or root) with multiple flattened, overlapping crowns protruding from it.[1] The denticles of the taxon are large and conical, and may have been fused to the teeth.[2]

References

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  1. ^ a b c Ginter, Michał; Hampe, Oliver; Duffin, Christopher J. (2010). Handbook of paleoichthyology: teeth. München: F. Pfeil. p. 119. ISBN 978-3-89937-116-1.
  2. ^ Lebedev, Oleg A.; Popov, Evgeny V.; Bagirov, Sergey V.; Bolshiyanov, Igor P.; Kadyrov, Rail I.; Statsenko, Evgeny O. (2021-11-15). "The earliest chimaeriform fish from the Carboniferous of Central Russia". Journal of Systematic Palaeontology. 19 (12): 821–846. doi:10.1080/14772019.2021.1977732. ISSN 1477-2019.