The Trachyceratidae is an extinct family of ceratitid ammonoid cephalopods.

Trachyceratidae
Temporal range: Devonian - Triassic
Fossil of Brotheotrachyceras brotheus
Scientific classification
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Trachyceratidae

Haug, 1894

The Trachyceratidae makes up part of the superfamily Trachyceratoidea along with such families as the Buchitidae, Distichitidae, Dronovitidae and Noridiscitidae. The Trachyceratoidea is also known by the junior synonym Trachycerataceae.

Fossil record

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Fossils of Trachyceratidae are found in marine strata from the Devonian to the Triassic. Fossils are known from many localities in Afghanistan, Canada, China, Europe (Slovenia, Spain, Switzerland, Ukraine), India, Japan, the Russian Federation, Thailand, and the United States.[1]

Description

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Trachyceratid shells are more or less involute and highly ornamented. They have their whorl sides covered with flexuous ribs that are usually tuberculate. The venters generally have a median furrow bordered by rows of tubercles or continuous keels.

Classification

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Trachyceratidae

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References

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  1. ^ The Paleobiology Database
  2. ^ a b c d e f g h i j k l m E. T. Tozer. 1994. Canadian Triassic Ammonoid Faunas. Geological Survey of Canada Bulletin 467:1-663. ISBN 0-660-15368-8
  3. ^ M. Balini, B. Jurkovsek, and T. Kolar-Jurkovsek. 2006. New Ladinian ammonoids from Mt. Svilaja (External Dinarides, Croatia). Rivista Italiana di Paleontologia e Stratigrafia 112:383-395. DOI:10.13130/2039-4942/6348
  4. ^ M. Gómez-Luna, E. Cedillo-Pardo, B. Contreras Montero, I. Gallo-Padilla, and A. Martínez-Cortés. 1998. Un nuevo perfil del Ladiniano-Cárnico Inferior con fauna de amonoideos en La Ballena, Zacatecas, México. Revista Mexicana de Ciencias Geológicas 15(1):38-45
  5. ^ a b S. Lukeneder and A. Lukeneder. 2014. A new ammonoid fauna from the Carnian (Upper Triassic) Kasimlar Formation of the Taurus Mountains (Anatolia, Turkey). Palaeontology 57:357-396
  6. ^ a b c d e f g P. Mietto and S. Manfrin. 2008. Selected ammonoid fauna from Prati Di Stuores/Stuores Wiesen and related sections across the Ladinian-Carnian boundary (southern Alps, Italy). Rivista Italiana di Paleontologia e Stratigrafia 114:377-429
  7. ^ a b M. Balini and X. D. Zou. 2015. Ammonoids from the Zhuganpo Member of the Falang Formation at Nimaigu and their relevance for dating the Xingyi fossil-Lagerstätte (late Ladinian, Guizhou, China). Rivista Italiana di Paleontologia e Stratigrafia 121:135-161

Further reading

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