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Fish Scale?


Dantheman135

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Dantheman135

Is this a fish scale?  It was found in the Woodbine formation south of Denton, TX. I am new to microfossils. It may also be a small clam. 

image.jpg

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Cant make out #1 a bit too blurry.

#2 might be snake.

  • I found this Informative 1
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I think the first item is a very young oyster. Need more angles on the vertebra to identify.

  • I found this Informative 1
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Max-fossils

#1 does indeed seem to be a very small, probably juvenile, bivalve of some kind. 

 

About #2, I see the socket on one side and the ball on the other, so I believe that this means it's reptilian. In that case, snake is a very possible guess, but I wouldn't just yet rule out lizard and other small reptiles. 

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The link is a helpful little piece on vertebrate anatomy. It is quite informative in learning to ID what type of animal a vert came from. However the reptiles can be more complex than stated. For instance I believe (I could have it switched) mosasaur vertebrae are concave in the front and convex in the back. The plesiosaur is convex to almost flat on both sides. Fish are convex on both sides. Salamanders are convex on the front and concave on the back. There are other arrangements too.

 

Also, vertebra from the cervical, thoracic, sacral and caudal areas all can look very different within the same animal. 

There is a section on vertebrae in it.

 

http://people.eku.edu/ritchisong/342notes2.htm

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