The Ophiceratidae is a family in the ammonoid order Ceratitida from the Lower Triassic

Triassic

The Triassic is a geologic period and system that extends from about 250 to 200 Mya . As the first period of the Mesozoic Era, the Triassic follows the Permian and is followed by the Jurassic. Both the start and end of the Triassic are marked by major extinction events...

, previously included in the Otocerataceae but now placed in the Noritiaceae as revised.

The Ophiceratidae produced sepenticones with compressed elliptical whorl sections in which the venter is generally rounded and ornamentation is usually weak. The suture is simple, ceratitic.

Named genera include Ophiceras, the type, Discophiceras, Nordophiceras, Sakhaites, Vishnuites, and Wordieoceras.

The phonetically similar Ophioceratidae of Strand 1934 is synonymous with Ophidioceratidae Hyatt, 1894
a family in the nautiloid cephalopod order, Tarphycerida

Tarphycerida

The Tarphycerida were the first of the coiled cephalopods. They are found in marine sediments from the Lower Ordovician to the Middle Devonian. Some like Aphetoceras and Estonioceras are loosely coiled, gyroconic, others like Campbelloceras, Tarphyceras, and Trocholites are tightly coiled, but...

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References

• Arkell et al. 1957, Mesozoic Ammonoidea,(L132)in the Treatise on Invertebrate Paleontology
  Treatise on Invertebrate Paleontology
  The Treatise on Invertebrate Paleontology published by the Geological Society of America and the University of Kansas Press, is a definitive multi-authored work of some 50 volumes, written by more than 300 paleontologists, and covering every phylum, class, order, family, and genus of fossil and...
  
  , Part-L, Ammonoidea; Geological Soc. of America, reprinted 1990.

• Furnish & Glenister, 1864, Nautiloidea - Tarphycerda (K367)in the Treatise on Invertebrate Paleontology, Part-K; Geological Soc. of America
• Paleobiology Database July 2009