The Upper Cretaceous Ammonite Genus Barroisiceras in the United States

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Description

From introduction: The ammonite genus Barroisiceras Grossouvre is noteworthy because of its wide geographic distribution and its apparently small stratigraphic range. It is reported from deposits of Coniacian age in Europe, Africa, South America, and North America. In the North American Upper Cretaceous it is rather rare, authentic species having been recognized hitherto only in the Austin chalk of Texas, in the Coniacian beds of Zumpango del Rio, Guerrero, Mexico, and, with doubt as to the source, in New Jersey. The Texan species, B. dentatocarinatum (Roemer), is by no means an abundant form, though among those described in early work … continued below

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ii, 21 p. : ill. ; 28 cm.

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Reeside, John B., Jr. 1931.

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Description

From introduction: The ammonite genus Barroisiceras Grossouvre is noteworthy because of its wide geographic distribution
and its apparently small stratigraphic range. It is reported from deposits of Coniacian age in Europe, Africa, South America, and North America. In the North American Upper Cretaceous it is rather rare, authentic species having been recognized hitherto
only in the Austin chalk of Texas, in the Coniacian beds of Zumpango del Rio, Guerrero, Mexico, and, with doubt as to the source, in New Jersey. The Texan species, B. dentatocarinatum (Roemer), is by no means an abundant form, though among those described in early work in the region. The Mexican representatives of the genus thus far described include only fragmentary specimens not specifically named. The occurrence ascribed to New Jersey is based on a fragment that seems to belong to Barroisiceras but whose source is very doubtful.

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ii, 21 p. : ill. ; 28 cm.

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  • Shorter Contributions to General Geology, 1931; pp. 9-29

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  • OCLC: 891572336
  • SuDoc Number: I 19.16:170-B
  • Report No.: Professional Paper 170-B
  • Archival Resource Key: ark:/67531/metadc784437

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  • 1931

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  • July 30, 2017, 8:43 a.m.

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  • Jan. 11, 2018, 3:30 p.m.

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Reeside, John B., Jr. The Upper Cretaceous Ammonite Genus Barroisiceras in the United States, report, 1931; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc784437/: accessed December 2, 2023), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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