Triassic Ichthyosaur paddle bone I.D?
I visted Aust Cliff on the River Severn, Gloucestershire UK back in Feburary and managed to find a large block of the 'Rhaetic Bone Bed' . Lots of bone fragments, fish teeth, even a shark fin spine! But my best finds are a paddle bone and large tooth. (Still got plenty more rock pieces to break open and search for more, so a long term project...)
However i would like to I.D this Ichthyosaur in particular. Does anyone know about the early ichthyosaurs from the late Triassic?
For sake of comparison, here's what the inside of a tooth from Aust Cliff should look like.
The tooth itself is unidentified, by the way, as I originally acquired it as plesiosaur, but it has at least one carina - which rules out plesiosaur, except for certain Cretaceous polycotylids. It can't be marine crocodile either - even if the presence of carinae might suggest this - since, as far as I'm aware, these hadn't evolved yet (though I don't know what kind of teeth the c