Oridorsalis plummerae
(Cushman, 1948)
identified by scientist   
Paleogene
North Africa

Oridorsalis praemegastomus
(Mjatliuk, 1953)
identified by scientist   
Cretaceous
North European Plain

Oridorsalis tenerus
(Brady, 1884)
identified by M. Hesemann   
Quaternary
Greenland Sea

Oridorsalis umbonatus
(Reuss, 1851)
identified by scientist   
Quaternary
Patagonia and off

Oridorsalis westi
Andersen, 1961
identified by scientist   
Quaternary
off Brazil