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Madagascar dinosaur teeth ID needed


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DatFossilBoy
Posted (edited)

Hey Guys,

 

My friend has these 5 Madagascar dinosaur teeth from an old collection that he wants to ID.

They’re all from the Jurassic Isalo III formation.

Thanks for all the help!!!

 

Here are some pictures and sizes: 

Left tooth 14mm

Middle 15mm

Right 16mm

69CA632E-1F12-4453-A0E5-B247E185170F.jpeg

BCB02BB3-B4D0-4B28-BBFA-E5EA9FF07B41.jpeg

Edited by DatFossilBoy
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DatFossilBoy

Tooth on the left serration zoom

FE328C17-9140-469A-BB43-3F5DBE223EFD.jpeg

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DatFossilBoy

Middle tooth serration zoom

Ps: tooth on the right has no serrations 

C9C352FF-5DB8-4EF1-B734-23BB8F0842ED.jpeg

C67FA624-2AD5-448F-8309-98AB5D8A7E82.jpeg

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DatFossilBoy
Posted (edited)

This tooth is 14mm

50DD139C-E49A-42B2-A2C9-DEFF9B2D4862.jpeg

94E9AAAE-DD39-4255-95DE-ECCA8F1DBFEE.jpeg

CA66FC13-248B-4035-A7CB-FE4A5D0773AA.jpeg

Edited by DatFossilBoy
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DatFossilBoy

Last tooth 26mm 

8984B474-67C1-4B08-B8DB-D1B2392971A9.jpeg

849017F4-63F4-46B8-B570-EC508737C0EA.jpeg

DB35C516-17C0-4CEE-82FE-096A185C44F3.jpeg

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DatFossilBoy

Maybe @Troodon or someone else can help? :) 

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Troodon

There are no theropods described from the ISALO IIIb Formation basically everything is indeterminate. .   A 2005 paper by Cau et al. tries to describes some morphologies that can be assigned to a group, family or are indet.  I can try to see if your teeth can be described to one of those Morphs but will need lots of information on each especially serration density on both carina and more photos as indicated in the illustration.   No guarantees.

So if  you are interested please provide me ALL the following:

Screenshot_20220702-103510_Drive.thumb.jpg.43d94f44db94eb0da5ce4ce3095bb690.jpg

 

Final thought do you have a location where these were found?  Are you sure they are from that deposit?   The issue I have with material from Madagascar is the accuracy of the provenance that they were sold under.

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