Aplocoma agassizi (von Münster, 1839)

( Ophiacanthida incertae sedis), Late Triassic: adGP long club-like, distal end curving dorsalwards. abGP blade-like flat, almost as long as adGP, inserting at distal end of adGP. Articular structures with at least one low condyle and a groove. RS with two condyles, larger distally bordered by curved groove, a muscle attachment patch of denser stereom proximal to condyle. Oral GP unknown.