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Couple of Moroccan shark teeth


britishcanuk

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I have these two teeth, the only data I have is  that they are from the phosphate mines of morocco.

 

wondering if they are small otodus or something different. Thought and opinions appreciated.

 

cheers!

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I would say those are Cretolamna appendiculata. Or another cretolamna species  which I can't remember the name off hand.  Both species look similar.

Dipleurawhisperer5.jpg

I like Trilo-butts and I cannot lie.

 

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Otodus lived from the Paleocene to the Miocene epoch - Cretolamna lived from the Barremian of the Cretaceous period to the Mid Miocene epoch. The phosphate Basins of Morocco are from Late Cretaceous to early Eocene. In principle, both species are possible.

I would also lean to Cretolamna appendiculata.

Be not ashamed of mistakes and thus make them crimes (Confucius, 551 BC - 479 BC).

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The name of the other Cretalamna species I was thinking of is Cretalamna biauriculata. This I think may be a better fit. 

Dipleurawhisperer5.jpg

I like Trilo-butts and I cannot lie.

 

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Thanks for the comments guys. darctooth, I have a biauriculata tooth, I've got included a shot of it for comparison (it's on the left). The roots are different and overall look like andiffwrwnt shark to me, I am leaning towards appendiculata but welcome any else's thoughts.

 

cheers!

 

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The "B" tooth is the Cretolamna tooth.  The same tooth is in the second image.  I posted these images in an extended thread  years ago.  Do a forum search for that thread.

For comparison:

 

 

shark_cretalamna or otodus.jpg

shark_cretalamnaappend.jpg

http://pristis.wix.com/the-demijohn-page

 

What seest thou else

In the dark backward and abysm of time?

---Shakespeare, The Tempest

 

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I remember Diceros answer to my request :

" ... the shark tooth seen at far left in the lower left photo of your 5:13AM Apr. 2 post, is an upper lateral tooth of Cretolamna appendiculata biauriculata, seen in labial view. It's a typical Maastrichtian form, and shows the problem with Cretolamna - the pair of accessory cusps on each side is as is seen in the Paleocene/Eocene type species of Otodus, O. obliquus - so it's more closely related to Otodus than it is to typical Cretolamna. " -

 

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For what its worth, diceros, the last professional in the world to not think carcharocles was descended from otodus, just for the record...

 

 

 

 

 

---Wie Wasser schleift den Stein, wir steigen und fallen---

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