Bredyia
Bredyia Temporal range:
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Phylum: | Mollusca
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Genus: | Bredyia (Buckman, 1910)
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Type species | |
Bredyia crassornata (Buckman, 1910)
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Bredyia is a genus of ammonites from the lower part of the Middle Jurassic, found in Europe and North America.
Bredyia is a member of the Hammatoceratidae, a family which comprises part of the Hildoceratoidea. Its shell is involute, strongly ribbed, with a small umbilicus. Whorls are strongly embracing; ribs thick, radially straight on the sides, curves forward on the venter but do not meet. The sides or flanks are outwardly bowed. The venter has a narrow keel and may be fastigate, like a gable roof.
References[]
This article includes a list of references, related reading or external links, but its sources remain unclear because it lacks inline citations. (September 2015) |
- W.J. Arkell et al., 1957. Mesozoic Ammonoidea, Treatise on Invertebrate Paleontology, Part L, Ammonoidea. Geological Society of America.
- Bredyia in Fossilworks Gateway
- Hammatoceratidae in Ammonites et Autres Spirales (Fr).
- Louis Rulleau, 2009. Les Hammatoceratidae et les Erycitidae NW européens et téthysiens du lias et du dogger.
Categories:
- Hammatoceratidae
- Ammonitida genera
- Ammonitina stubs