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THE SHARKS |
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The Common Thresher Age - Miocene Commonality - Very uncommon
The common thresher Alopias latidens is a rare find in NJ.
Alopias latiden is indistinguishable from today’s modern day
threshers ( Alopias vulpinus ). These teeth average a
little less than
1/2 inch, reaching a maximum of about 3/4's of an inch in size. The crown is
triangular with a smooth cutting edge that extends onto the shoulder of
the root where just a hint of
vestigial cusplets may be present. The roots have a wide “U” shape
with no nutrient groove. The basal root margin is concave.
The wide triangular crown is one of the distinguishing
characteristics
This is the only specimen from
Monmouth County, NJ I've found.
Left lingual view—Right labial view |
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