Johnlongia

Johnlongia is an extinct genus of sand shark from the Cretaceous period. It contains two described species, J. parvidens and J. allocotodon, and possibly a third unnamed species from the Niobrara Chalk.[1] It is presumed piscivorous; However, it forms a clade with an early filter-feeding shark genus, Pseudomegachasma.[2]

Johnlongia
Temporal range: Albian-Coniacian
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Order: Lamniformes
Family: Odontaspididae
Subfamily: †Johnlonginae
Genus: †Johnlongia
Siverson, 1996
Species
  • J. parvidens
  • J. allocotodon

References
  1. Shimada, Kenshu; Ewell, Keith; Everhart, Michael J. (2004). "The First Record of the Lamniform Shark Genus, Johnlongia, from the Niobrara Chalk (Upper Cretaceous), Western Kansas". Transactions of the Kansas Academy of Science (1903-). 107 (3/4): 131–135. doi:10.1660/0022-8443(2004)107[0131:TFROTL]2.0.CO;2. ISSN 0022-8443. JSTOR 3627901.
  2. Shimada, Kenshu; Popov, Evgeny V.; Siversson, Mikael; Welton, Bruce J.; Long, Douglas J. (2015-09-03). "A new clade of putative plankton-feeding sharks from the Upper Cretaceous of Russia and the United States". Journal of Vertebrate Paleontology. 35 (5): e981335. doi:10.1080/02724634.2015.981335. ISSN 0272-4634. S2CID 83793715.


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