Biology:Platylithophycus

From HandWiki
Short description: Extinct genus of elasmobranchs

Platylithophycus
Temporal range: Coniacian-Campanian
Scientific classification edit
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Genus: Platylithophycus
Johnson & Howell, 1948[1]
Species:
P. cretaceus
Binomial name
Platylithophycus cretaceus
Johnson & Howell, 1948

Platylithophycus is an extinct genus of elasmobranchs that lived during the Late Cretaceous. It is known from a single specimen from the Niobrara Formation of Kansas , United States. It was originally identified as the fronds of a codiacean alga, then later as the cuttlebone of a cuttlefish.[1][2] It was most recently reidentified as the gill arches and rakers of an elasmobranch of uncertain affinities.[3] It might have been a filter feeding mackerel shark related to Aquilolamna.[4]

References

  1. 1.0 1.1 Johnson, J.H.; Howell, B.F. (1948). "A new Cretaceous calcareous alga from Kansas". Journal of Paleontology 22 (5): 632–633. https://www.jstor.org/stable/1299601. 
  2. Miller, H.W.; Walker, M.V. (1968). "Enchoteuthis melanae and Kansasteuthis lindneri, new genera and species of teuthids, and a sepiid from the Niobrara Formation of Kansas". Transactions of the Kansas Academy of Science 71 (2): 176–183. doi:10.2307/3627369. https://www.jstor.org/stable/3627369. 
  3. Bronson, A.W.; Maisey, J.G. (2018). "Resolving the identity of Platylithophycus, an enigmatic fossil from the Niobrara Chalk (Upper Cretaceous, Coniacian–Campanian)". Journal of Paleontology 92 (4): 743–750. doi:10.1017/jpa.2018.14. 
  4. Vullo, R.; Frey, E.; Ifrim, C.; González González, M.A.; Stinnesbeck, E.S.; Stinnesbeck, W. (2021). "Manta-like planktivorous sharks in Late Cretaceous oceans". Science 371 (6535): 1253–1256. doi:10.1126/science.abc1490. PMID 33737486. Bibcode2021Sci...371.1253V. https://hal-insu.archives-ouvertes.fr/insu-03174427/file/Vullo-etal-2021-HAL.pdf. 

Wikidata ☰ Q114152611 entry