Hello, hoping someone can help me ID this tiny tooth set in a half-dome. Any thoughts much appreciated - it came from an assemblage of 14th-16th century pottery....
Possibly a dermal denticle of a skate or ray type shark??
Heres a link to an image of a skate tail (recent not fossil) from a Thornback Ray, by the looks of it.
Hi Keith, thanks for pointing me in the right direction. Bottom left look remarkably similar
Fascinating, many thanks for the info, I'm sure I would never have found that out otherwise! I think this *could* be quite significant archaeologically speaking....
As a bit of context, the general area this comes from is Lower Greensand, in West Sussex, about 20km inland from Bognor Regis. These deposits formed c. 100 million years ago(?) and I assume that the denticle must have originally been within these deposits? The denticle was actually retrieved from on top of a small hill, which I think may be an entirely artificial construction (the Motte of an unrecorded medieval Motte and Bailey castle) - I would suggest that this fossil is potentially evidence that the hill is not natural, and the denticle is possibly there as a result of material being dug out and deposited to create the hill, probably in the 14th century or earlier, as indicated by the pottery assemblage which it is associated with. This would make sense, as in creating the hill the natural stratigraphy would be essentially inverted so that the oldest deposits are at the top.
Having more an archaeological, rather than geological, background, I'd appreciate it if you (or anyone) could point out any glaring flaws in my argument!