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A New Species of Freshwater Hybodont from the Dockum Group (Triassic) of Texas

Phillip A. Murry
Journal of Paleontology
Vol. 55, No. 3 (May, 1981), pp. 603-607
Stable URL: http://www.jstor.org/stable/1304274
Page Count: 5
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A New Species of Freshwater Hybodont from the Dockum Group (Triassic) of Texas
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Abstract

Lonchidion humblei is a new species from the Dockum Group (Triassic; Upper Carnian) of Texas and is the only freshwater hybodont from the Triassic of the Western Hemisphere for which the dentition is known. This species exhibits a tooth morphology from which other Lonchidion were probably derived with a prominent labial buttress, low crown, smooth sculpture, and lacking accessory cusps.

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