Baculitidae

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Baculitidae
Temporal range: Albian to Maastrichtian
Baculites grandis shell.JPG
Fossil cast of a Baculites shell in the North American Museum of Ancient Life.
Scientific classification e
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Order: Ammonitida
Superfamily: Turrilitoidea
Family: Baculitidae
Gill, 1871
Type genus
Baculites
Lamarck, 1799
Genera

See text

Baculitidae is a family of extinct ammonoid cephalopods that lived mostly during the Late Cretaceous, and often included in the suborder Ancyloceratina.[1]

Baculitid genera are characterized by a small to minute initial coil of about two whorls followed by a long straight or slightly curved shaft. Genera are distinguished on the basis of size, general shape, particulars of the suture, and ornamentation. They can reach lengths of 120 cm (47 in) or more.[1]

Baculitids are found worldwide in deposits from the upper Albian to the Maastrichtian ages.[1] Related families are the Anisoceratidae, Diplomoceratidae, Hamitidae, Nostoceratidae, and Turrilitidae; all of which along with the Baculitidae are included in the superfamily Turrilitaceae.[2]

Genera included in the family include:

References[edit]

  1. ^ a b c Neal L. Larson, Steven D. Jorgensen, Robert A. Farrar, & Peter L. Larson (1997). Ammonites and the Other Cephalopods of the Pierre Seaway. Geoscience Press, Inc. p. 19. ISBN 0-945005-34-2. 
  2. ^ Arkell, W.J.; Kummel, B.; Wright, C.W. (1957). Mesozoic Ammonoidea. Treatise on Invertebrate Paleontology, Part L, Mollusca 4. Lawrence, Kansas: Geological Society of America and University of Kansas Press. 

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