Trochoceras lorieri Barrande, 1870 Lorieroceras lorieri is an extinct oncocerid nautilitoidean cephalopod belonging to the family Nothoceratidae.

Fossils are found in Lower Devonian marine strata of France.

Its shell is unusual among nautiloids in that it is a loosely coiled, turban-shaped helix that is sinistrally coiled.

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