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Ikamauius is an extinct genus of sawshark from the Cenozoic of New Zealand. It contains a single species, I. ensifer. It is most closely related to the extant Pliotrema, but is distinguished by the presence of barbs on both sides of its rostral denticles.[1]

Ikamauius
Temporal range: Eocene-Pleistocene
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Chondrichthyes
Subclass:
Elasmobranchii
Superorder:
Selachimorpha
Order:
Pristiophoriformes
Family:
Pristiophoridae
Genus:
†Ikamauius

Keyes, 1979[1]
Species:
†I.ensifer
Binomial name
†Ikamauius ensifer
(Davis, 1888)[2]
Synonyms
  • Trygon ensifer
    Davis, 1888
  • Pristiophorus ensifer
    (Davis, 1888)
  • Pristiophorus napierensis
    Chapman, 1918[3]

References


  1. Keyes, I.W. (1979). "Ikamauius, a new genus of fossil sawshark (Order Selachii: Family Pristiophoridae) from the Cenozoic of New Zealand". New Zealand Journal of Geology and Geophysics. 22 (1): 125–129. doi:10.1080/00288306.1979.10422558.
  2. Davis, J.W. (1888). "On fossil-fish remains from the Tertiary and Cretaceo-Tertiary formations of New Zealand". Scientific Transactions of the Royal Dublin Society. Series 2. 4 (1): 1–48.
  3. Chapman, F. (1918). "Descriptions and revisions of the Cretaceous and Tertiary fish-remains of New Zealand". Palaeontological Bulletin, New Zealand Geological Survey. 7: 1–45.


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