Potential fossil that I continue to find in the rocks of my local area. I believe this is a Radiodont fish/shrimp like creature either related to Anomalocaris or tiny Anomalocaris in and of them selves. They are hard to see, and I rarely find good specim

May 5, 2021 5:09 PM

NOYFBAH

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In this rock are 4 to 5 shrimp like fossils. In very poor condition, they are still the best examples I've found that the average person would readily identify as a fossil. The tail and back fin can be seen here. This is the underside of the tail. As seen from inside of it or as it was all that's was left...which it is. With the front half imbedded in the rock. There is another to the right and left that are harder to see in a photograph.

The back of the head has a plate or ridge of some kind. Perhaps some kind of sensor or a gland of some kind. It's often the only part to fossilize and can be found by the thousands in rocks in this area. On this example if turned sideways so that the bulge on the left becomes the top of the rock, you can see that the sensor plate is missing and broken from the rock, the hole along the top side is the back of its head. The bulge is the side descending towards the tail. The side of the rock facing you if you tilted the rock contains a second shrimplike sample only identifiable by two leg like extrusions and a small pincer....this may not be the same spiecies as the Radiodont in question.

This rock contains a fossil horizontally across the top half. It is difficult to make out but you can sort of see it's profile from the side. Some calcified chitin is visible across it's back...roughly where the sensor noted above would be located, and the round part would potentially be it's eye. Protruding out from the front of the head bits of tenticles can be seen. From its side what others would say is a shell can be seen several long rib-like pieces. I believe this is the remains of the radiating fins that run down the side of Radiodont fossils. Though I've never seen them looking exactly like this....my thoughts is they dried out prior to fossilizing

This is the same sample as the one above. From the top down. You can see what might be a potential fin radiating out to the right and some what the overall shape. The problem is that these creatures all died at once. They are stacked up and piled on top of each other and it is very difficult to determine exactly what you are looking at.

In this photo you begin to see what I meant above. There are several fin like objects in this rock. They are very faint but they overlap each other in various directions. I believe they are all Radiodonts wich died possibly in the extinction event that ended the Cambrian period

This is litterally the same picture as the one above it. In the top corner almost dead center to the top side of the pic is a reddish brown stain. Above it a whittier portion and below that something like a cross between the two. Each is similar in shape and displays alternating lines rounded off at the bottom I believe each belongs to a separate specimin one on top of the other. By looking closely you can detect several other specimin by locating the radiating lines of the fins.

Close up of radiating lines believed to potentially be Radiodont fins

An even closer close up

This is the front section. Similar to a crawfish or shrimp with its tail eaten the circled spot on the head is the raised bump/sensor/organ that is found on whatever this is. Two tenticles extend from the front of the head and around a fossilized shell one drapes over the top the other circles around underneath the shell

This one is very hard to see but expand the pic as far as it will go, and look closely at the grey area along the bottom are radiating fin patterns similar to the ones in the rock above

anomalocaris

rocks

fossil

fossils

fossilid

Or maybe a baby anomalocaris

4 years ago | Likes 1 Dislikes 0

That's what I'm thinking. I found one about 12 to 18 inches long if it's all there and found parts of some that would be quite a bit larger

4 years ago | Likes 1 Dislikes 0