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Post by Ceratodromeus on Jan 11, 2015 1:41:44 GMT 5
that does help a bit. looking at the tooth i'd say it's definetly an older fossil shark, and given your hint their i'm tempted to say it's some sort of Ctenacanthiform?
they're one of the older lineages of sharks that i know of..
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Post by theropod on Jan 11, 2015 5:19:58 GMT 5
Correct!
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Post by Ceratodromeus on Jan 12, 2015 10:09:36 GMT 5
is it k. swiftae?
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Post by theropod on Jan 12, 2015 12:57:18 GMT 5
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stomatopod
Junior Member
Gluttonous Auchenipterid
Posts: 182
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Post by stomatopod on Jan 12, 2015 20:40:30 GMT 5
I dont want to sound like a smartarse but Ctenacanthids arent sharks(Or, lets say, them being is very unlikely).
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Post by theropod on Jan 12, 2015 23:07:31 GMT 5
And sharks may not be monophyletic at all, so what’s your point? They are rather a morphotype of chondrichthyan than a clade.
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Post by allosaurusatrox on Jan 13, 2015 1:29:22 GMT 5
Well, perhaps ratfish are far more than an out group...
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Post by theropod on Jan 13, 2015 14:52:03 GMT 5
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Post by Ceratodromeus on Jan 13, 2015 21:47:44 GMT 5
you were right -- it's a theropod phalanx |
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Post by theropod on Jan 14, 2015 1:27:54 GMT 5
Phalanges aren’t very diagnostic, but the size and color seems to be consistent with the proximal phalanges of Allosaurus, and in that size range it’s by far the most probable theropod.
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Post by allosaurusatrox on Jan 14, 2015 2:49:22 GMT 5
Can we get a new bone?
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Post by Ceratodromeus on Jan 14, 2015 6:23:43 GMT 5
Phalanges aren’t very diagnostic, but the size and color seems to be consistent with the proximal phalanges of Allosaurus, and in that size range it’s by far the most probable theropod. yeah, realied that after looking at it for a bit. not allosaurus, though you're somewhat in the right ballpark. i'll post a different one |
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Post by Ceratodromeus on Jan 14, 2015 6:27:39 GMT 5
this is probably easier to diagnose..  |
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Post by theropod on Jan 14, 2015 21:19:58 GMT 5
Clearly a theropod maxilla, based on tooth count and size most likely T. rex.
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Post by allosaurusatrox on Jan 14, 2015 22:28:12 GMT 5
I'm not so sure...
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