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Showing results for tags 'speeton clay'.
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I'm planning to start a belemnite thread but thought this one deserved a separate post! Just acquired from an old collection, it's Acroteuthis lateralis (Phillips), lower Cretaceous, Berriasian, almost certainly from near the base of the Speeton Clay, Yorkshire coast, UK. (It wasn't actually labelled but this is the only feasible UK location and it has the right preservation. It does occur in other countries e.g. Russia). I've visited the locality a few times but this species has been elusive - the beds in which it occurs need a storm scour to expose them. 17cm/6.7" long, 6cm at widest point. Dorsal Ventral - it doesn't have a true furrow, this is a pseudo-furrow caused by weathering along the flat ventral face. In situ specimens are typically a bit rolled and weathered like this. Lateral, showing the pronounced vertical compression relative to the horizontal width.
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- acroteuthis
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