Agoniatitaceae

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m (Protected "Agoniatitaceae" ([move=sysop] (indefinite)))
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The Lower to Middle Devonian Agoniatitaceae were an early group of ammonoid cephalopods. They probably started life in shallow waters, becoming more nektonic as they reached maturity (Klug & Korn 2002).
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'''Characters''' (from Murray 1985): Serpenticonic to involute, always substantially convolute except earliest whorls. Umbilicus perforate or imperforate. Sutures with at least ventral, lateral and dorsal lobes; biconvex growth lines.
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  [[Ammonoidea|<==]]Agoniatitaceae [Agoniatitida, Agoniatitina]
  [[Ammonoidea|<==]]Agoniatitaceae [Agoniatitida, Agoniatitina]
     |  ''i. s.'': ''Agoniatites'' D02
     |  ''i. s.'': ''Agoniatites'' D02
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[KK02] Klug, C., & D. Korn. 2002. Occluded umbilicus in the Pinacitinae (Devonian) and its palaeoecological implications. ''Palaeontology'' 45 (5): 917-931.
[KK02] Klug, C., & D. Korn. 2002. Occluded umbilicus in the Pinacitinae (Devonian) and its palaeoecological implications. ''Palaeontology'' 45 (5): 917-931.
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Murray, J. W. (ed.) 1985. ''Atlas of Invertebrate Macrofossils''. Longman: Harlow.
[P68] Purnell, L. R. 1968. Catalog of the Type Specimens of Invertebrate Fossils. Part I: Paleozoic Cephalopoda. ''United States National Museum Bulletin'' 262: 1-198.
[P68] Purnell, L. R. 1968. Catalog of the Type Specimens of Invertebrate Fossils. Part I: Paleozoic Cephalopoda. ''United States National Museum Bulletin'' 262: 1-198.

Revision as of 08:52, 26 January 2011

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