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lantern with epiphyses not meeting above the foramen magnum;
spines solid.
Range
Lower Jurassic (Hettangian) to Recent, worldwide
Remarks
As currently constitued this is a paraphyletic grade by exclusion of the more derived Camarodonta, which have the epiphyses of the lantern extended and fused above the hemipyramids.
The following taxa are probably stirodonts but remain too poorly known to place into one of the included taxa: