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Showing results for tags 'mark'.
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I’m very curious about these “ripple marks” that I have seen posted a few times on the forum. From what little research I have been able to do (so far...) they seem to be caused by wind or water erosion of the rock. However, there is mention of them possibly being fossilized rippled sediment from the floor of a body of water. So... are these geological erosions or some type of fossilized evidence of water movement? I can see how the erosion would work, but wouldn’t the sediment be compressed during lithification/fossilization and destroy the details if it was from a body of water millions of years old? Ripple Marks Mention of Fossilization
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- ripple marks
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I saw this Madagascar ammonite on website and wonder hole(?) On its surface could be a bite mark. Actually, i've never seen bite mark like this but i looking forward to any new information about it. Thanks.
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From the album: Permian era fossils
Yet unidentified Edaphosaurus pogonias bone from the Permian era Red Beds site in North Texas, with large unhealed tooth hole from what appears to be a large Dimetrodon's bite, from either the fatal attack, or post-death predation mark.- 14 comments
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- pelycosaur
- synapsid
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From the album: Marine reptiles and mammals
A little collection of assorted mosasaur fossils from 2 different places that I got when I first started collecting. 2 different types of vertebrae, one is mosasaur, and the other is a questionable claim of mosasaur, a corprolite that was claimed to be that of a mosasaur, a tooth, & 7 rib fragments. 2 ribs have predation marks, as well as the large vertebra. The large vert has a round tooth indent on the very center. The 2nd rib down has tooth scratches along the surfaces, & 3rd rib down has a round tooth indent in the center, which is probably what caused a strip across the middle to break off. There are 2 other tooth marks on that rib as well, forming a diagonal line from above left of the center indent, breaking off a piece along the top, to below right.- 6 comments
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- benguerir
- maastrictian
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Edaphosaurus bone with large bite mark from an apparent Dimetrodon
Still_human posted a gallery image in Member Collections
From the album: Permian era fossils
Reverse side of the unidentified Edaphosaurus pogonias bone with an apparent Dimetrodon tooth hole.