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Bill Heim posted a new activity comment 2 months, 3 weeks ago
2 months, 3 weeks ago2 months, 3 weeks agoprobably a shortfin mako (Isurus)
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Bill Heim posted a new activity comment 3 months ago
3 months ago3 months agoPoor condition. Probably Cretalamna (note the A not O) but not 100%.
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Bill Heim posted a new activity comment 3 months, 2 weeks ago
3 months, 2 weeks ago3 months, 2 weeks agoBadly dinged up tiger shark tooth
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Bill Heim posted a new activity comment 3 months, 2 weeks ago
3 months, 2 weeks ago3 months, 2 weeks agoNot from the Miocene it ain’t. Sand tigers can have striated teeth. One of my jaws has several.
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Bill Heim posted a new activity comment 4 months, 2 weeks ago
4 months, 2 weeks ago4 months, 2 weeks agoDid not extend into the Yorktown where it was replaced by G. cuvier
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Bill Heim posted a new activity comment 4 months, 2 weeks ago
4 months, 2 weeks ago4 months, 2 weeks agoThis species is not found in the Yorktown (it had gone extinct by then)
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Bill Heim posted a new activity comment 4 months, 2 weeks ago
4 months, 2 weeks ago4 months, 2 weeks agoThis species is not found in the Yorktown (it had gone extinct by then)
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Bill Heim posted a new activity comment 4 months, 2 weeks ago
4 months, 2 weeks ago4 months, 2 weeks agoCould be Odontaspis but too worn to tell for sure.
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Bill Heim posted a new activity comment 4 months, 2 weeks ago
4 months, 2 weeks ago4 months, 2 weeks agoCleaning your fossil before posting would be very helpful in identification. A quick scrub with an old toothbrush and dish washing soap would work.
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Bill Heim posted a new activity comment 5 months, 2 weeks ago
5 months, 2 weeks ago5 months, 2 weeks agoThe large posterior serrations and lack of medial serrations along with its small size make me think that this is possibly Paragaleus and not Hemipristis. The pathology makes it difficult to be sure.
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Bill Heim posted a new activity comment 5 months, 3 weeks ago
5 months, 3 weeks ago5 months, 3 weeks agoPossibly but I am not sure that is aduncus or something more related to eaglesomi like casei perhaps.
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Bill Heim posted a new activity comment 6 months ago
6 months ago6 months agoThe most valuable piece of a tooth for identification is the root. Without it, well you can give it away to a kid.
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Bill Heim posted a new activity comment 6 months, 1 week ago
6 months, 1 week ago6 months, 1 week agoIf you can put in the coordinates of the park, It can be research grade.
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Bill Heim posted a new activity comment 6 months, 1 week ago
6 months, 1 week ago6 months, 1 week agoOne of the difficulties with Sphyrna is that sharpnose Rhizoprionodon closely resemble them. I suspect they are related. Sharpnose are usually smaller and the posterior angle is very slightly different. Having examined teeth from both jaws, I would say that this is a posterior Sphyna albeit a small one.
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Bill Heim posted a new activity comment 7 months, 1 week ago
7 months, 1 week ago7 months, 1 week agoI spent a lot of time looking at this. The shadows from your illumination didn’t help. Also you may want to crop the images and eliminate much of the blank background. The size and the angles of the mesial edge of the tooth (which was hard to make out due to your shadowing by illuminating from the other side) indicate Rhizoprionodon terraenovae
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Bill Heim posted a new activity comment 7 months, 1 week ago
7 months, 1 week ago7 months, 1 week agoThe problem with collecting teeth on the beach particularly from the ocean or in this case dredged is that you have no idea from what formation or what actual age it is from. This is why in situ material is so much more valuable as to location and context.
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Bill Heim posted a new activity comment 7 months, 1 week ago
7 months, 1 week ago7 months, 1 week agodusky
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Bill Heim posted a new activity comment 7 months, 1 week ago
7 months, 1 week ago7 months, 1 week agoThe accepted genus is Otodus now.
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Bill Heim posted a new activity comment 8 months, 1 week ago
8 months, 1 week ago8 months, 1 week agotoo large for vulpinus. Those teeth are typically in 5-6 mm range. I would say superciliousus
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Bill Heim posted a new activity comment 8 months, 1 week ago
8 months, 1 week ago8 months, 1 week agoyes
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