Stephanoceras Kreter (Bucland) 1927, found in Dorset, England. Stephanoceras (meaning crown horn) is a Stephanoceratacean (ammonite) genus and type for the Stephanoceratidae, which lived during the Bajocian (Middle Jurassic) but is now extinct. Stephanoceras has a evolute shell, as characteristic of the family, with well developed ribbing and tubercles.

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Stephanoceras Kreter (Bucland) 1927, found in Dorset, England. Stephanoceras (meaning crown horn) is a Stephanoceratacean (ammonite) genus and type for the Stephanoceratidae, which lived during the Bajocian (Middle Jurassic) but is now extinct. Stephanoceras has a evolute shell, as characteristic of the family, with well developed ribbing and tubercles.

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Photo credit: © World History Archive / Alamy / Afripics
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Keywords: 1927, ammonite, ancient, archival, archive, bajocian, bucland, characteristic, crown, developed, dorset, england, evolute, extinct, family, genus, greek, historical, history, horn, jurassic, kreter, lived, meaning, middle, ribbing, shell, stephanoceras, stephanoceratacean, stephanoceratidae, tubercles., type