| Today we took a brief trip to Collin county and explored some areas that exposed the upper Eagle Ford and it's contact with the Austin Chalk. Here are some shark teeth we found: | |||
| Squalicorax
falcatus |
Squalicorax falcatus (same) |
shark vertebrae |
(same) |
| Ptychodus mortoni teeth |
Scapanorhynchus sp. tooth |
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