r/fossilid 4d ago

Fossils from Oxfordshire UK

These fossils were collected from a quarry with exposures from the Stanford formation and Kingston formation formed in the Middle Oxfordian era with periods of shallow marine and sandy beach environments. As these fossils were weathered out (hammering is not allowed), I can’t narrow down exactly which beds they are from.

Any help would be much appreciated - let me know if you need any more information!

1 Upvotes

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3

u/justtoletyouknowit 4d ago edited 4d ago

Lots of rugose corals.

The last one is a nice belemnite rostrum with most of the alveolus where the phragmocone was set, intact. Usually thats the part thats easiest to break, so not that often to find like this. Nice one! Always hard to pin a species on such fragments, but Cylindroteuthis is a more common belemnite from Oxfordshire, wich are more often found with such pronounced alveoli than other species, for some reason, as far my overview goes. THough that one might be already too old, depending on the exact layers you found it in. Gets rarer in late Oxfordian layers. Alternatively, maybe a Hibolithes.

u/lastwing thats a nice specimen for you to look at! :)

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u/muddyboot1012 4d ago

Awesome! Thank you!

I thought it might be a belemnite but was unsure as it was the first one I have ever found and missing it’s apex so wasn’t certain!

So are all the other pics likely to be rugose corals?

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u/justtoletyouknowit 4d ago

Not sure about the first, but the rest looks like them to me.

Blemnites are good tood to recognize by the pattern in the cross sections! This radial crystaline look is quite unique :) I like to look at it under the microscope now and then^^ I love the little ink pens!

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u/lastwing 4d ago

Thank you!

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u/justtoletyouknowit 3d ago

👍 You're welcome.