FOSSILS OF NEW JERSEY |
Sand Tiger Age - Eocene Occurrence - Uncommon* I’ve always considered the teeth of Jaeckelotodus
trigonalis to be striking. Relatively robust when compared to the
other sand tigers these teeth have a distinctive triangular shape. The
crown is moderately broad with heavy looking roots, a strong lingual
protuberance and a shallow
but distinct nutrient grove. Two or more cusplets are present; the primary is a broad
triangle shape, with the secondary being diminished and attached to the
primary. The basal portion of the cutting edge may show signs of
serrations*. Some forms of
Carcharias
cuspidata and J.
trigonalis can de difficult to distinguish apart.
Plate 2
The serrations at the base of the crown may be very
distinct (left) or
The lateral tooth on the left has three cusplets, the anterior tooth on
the right ¹ Kent, W.B, 1994. Fossil Sharks of the Chesapeake Bay Region, Egan Rees & Boyd, Inc., 46pp.
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