Archaeolamna

Archaeolamna is an extinct genus of mackerel shark from the Cretaceous period.[1] There are currently two named species, one of which has two named subspecies. Its isolated teeth have been found in Europe, North America, and Australia. A single associated dentition is known from the Pierre Shale of Kansas, USA.[2] The grasping-type dentition and large size of these teeth suggest a diet of mainly large fish and possibly sea reptiles. There is some evidence of scavenging upon Plesiosaurs in the Judith River Formation.[3]

Archaeolamna
Temporal range: Albian–Maastrichtian
Archaeolamna sp. tooth from the Demopolis Chalk of Mississippi
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Order: Lamniformes
Family: †Archaeolamnidae
Genus: †Archaeolamna
Siverson, 1992
Species
  • A. kopingensis (Davis, 1890)
    • A. kopingensis kopingensis (Davis, 1890)
    • A. kopingensis judithensis Siverson, 1992
  • A. haigi Siverson, 1996

References
  1. "elasmo.com". www.elasmo.com. Retrieved 2020-08-22.
  2. Cook, Todd D.; Newbrey, Michael G.; Murray, Alison M.; Wilson, Mark V. H.; Shimada, Kenshu; Takeuchi, Gary T.; Stewart, J. D. (2011-02-10). "A partial skeleton of the Late Cretaceous lamniform shark, Archaeolamna kopingensis , from the Pierre Shale of western Kansas, U.S.A." Journal of Vertebrate Paleontology. 31 (1): 8–21. doi:10.1080/02724634.2011.539968. ISSN 0272-4634.
  3. Siverson, M. 1992. Biology, dental morphology and taxonomy of lamni-form sharks from the Campanian of the Kristianstad Basin, Sweden.Palaeontology 35:519–554.
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