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aek

Cretaceous Shark Tooth from Waco

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aek

I went to the Waco Research Area a few days ago and found my first shark tooth and some nice ammonites. I know nothing about shark teeth, any ideas on this one? 

 

IMG_2055.thumb.jpg.ec21da18e642cb8e03bf6c5ce3c156a8.jpg

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fossilized6s

Possible Cretolamna appendiculata, but I'm not great with shark teeth. 

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sharko69

I would say Cretodus more than likely. But need to see some other angles. What is the size?

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aek

Thanks for the replies. Here is the other side.

 

IMG_2057.thumb.jpg.61abdb46faa4dbe6053fcee35de2215d.jpg

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Macrophyseter

I'd agree with Cretodus. The cusps just seem to be in the perfect size for one, and if it were to be Cretolamna, I would be expecting larger cusps. The shape of the root, the root-crown proportions, and the stretch of the crown itself also makes me lean towards Cretodus

Nice find!

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siteseer

I think this could be a Cretalamna lower anterior.  I don't see the wrinkles/vertical ridges on the basal part of the labial crown you would expect on a Cretodus.

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Anomotodon

I also think this is Cretalamna. I am not 100% sure, but it looks like C. ewelli, that is known from Coniacian of Kansas. Is it Cenomanian-Turonian? This tooth looks more similar to C. ewelli than to Cenomanian C. catoxodon or Turonian C. appendiculata.

 

Cenomanian—Campanian (Late Cretaceous) Mid-Palaeolatitude Sharks of Cretalamna appendiculata Type

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aek
2 hours ago, Anomotodon said:

I also think this is Cretalamna. I am not 100% sure, but it looks like C. ewelli, that is known from Coniacian of Kansas. Is it Cenomanian-Turonian? This tooth looks more similar to C. ewelli than to Cenomanian C. catoxodon or Turonian C. appendiculata.

 

Cenomanian—Campanian (Late Cretaceous) Mid-Palaeolatitude Sharks of Cretalamna appendiculata Type

Thanks for the info! I believe the Waco Grayson Formation is Early Cenomanian.

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