Lechritrochoceratidae

Lechritrochoceratidae Temporal range: Mid-Late Silurian
Peismoceras optatum from Czech Republic, at the National Museum (Prague)
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	Nautiloidea
Order:	Tarphycerida
Suborder:	Barrandeocerina
Family:	Lechritrochoceratidae Flower, 1950
Genera
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Lechritrochoceratidae is a family of derived tarphycerids from the middle and upper Silurian, once included in the now largely abandoned Barrandeocerida.

Lechritrochoceratidae comprise dextrally torticonic genera with costate shells and ventrally displaced siphuncles. Offset coiling in low spired. Rate of expansion and coarseness of costae vary, genus to genus. Costae are generally narrow and sharp with wide areas between and slant dorso-ventrally toward the apex.

Six genera have been described:

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