Lower cretaceous ammonites from the neuquén basin argentina: The hauterivian neocomitid genus hoplitocrioceras(giovine 1950)

Hoplitocrioceras is a poorly-known ammonite genus of late Early Hauterivian age that may be endemic to the Neuquén Basin Argentina where it occurs at a clearly defined horizon in the Agrio Formation. It is an unusual genus with uncoiling (crioceratitid) whorls that remain linked by a thick dorsal sh...

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Detalles Bibliográficos
Autores principales:	Aguirre-Urreta, M.B., Rawson, P.F.
Formato:	JOUR
Materias:	Ammonites Argentian Biostratigraphy Lower cretaceous Lower hauterivian Neocomitidae Neuquén basin biostratigraphy Cretaceous Hauterivian new species paleontology Argentina Neuquen Basin Ammonoidea Hoplitocriceras
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_01956671_v22_n2_p201_AguirreUrreta
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_01956671_v22_n2_p201_AguirreUrreta
record_format	dspace
spelling	todo:paper_01956671_v22_n2_p201_AguirreUrreta2023-10-03T15:09:18Z Lower cretaceous ammonites from the neuquén basin argentina: The hauterivian neocomitid genus hoplitocrioceras(giovine 1950) Aguirre-Urreta, M.B. Rawson, P.F. Ammonites Argentian Biostratigraphy Lower cretaceous Lower hauterivian Neocomitidae Neuquén basin biostratigraphy Cretaceous Hauterivian new species paleontology Argentina Neuquen Basin Ammonoidea Ammonoidea Hoplitocriceras Neocomitidae Neocomitidae Hoplitocrioceras is a poorly-known ammonite genus of late Early Hauterivian age that may be endemic to the Neuquén Basin Argentina where it occurs at a clearly defined horizon in the Agrio Formation. It is an unusual genus with uncoiling (crioceratitid) whorls that remain linked by a thick dorsal shell that drapes over the tips of sharp upwardly-pointing ventro-lateral spines. It has been interpreted as either a necomitis or a crioceratitid but is here regarded as one of the last members of the Family Neocomitidae. One new species is proposed: H. giovinei. © 2001 Academic Press. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01956671_v22_n2_p201_AguirreUrreta
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Ammonites Argentian Biostratigraphy Lower cretaceous Lower hauterivian Neocomitidae Neuquén basin biostratigraphy Cretaceous Hauterivian new species paleontology Argentina Neuquen Basin Ammonoidea Ammonoidea Hoplitocriceras Neocomitidae Neocomitidae
spellingShingle	Ammonites Argentian Biostratigraphy Lower cretaceous Lower hauterivian Neocomitidae Neuquén basin biostratigraphy Cretaceous Hauterivian new species paleontology Argentina Neuquen Basin Ammonoidea Ammonoidea Hoplitocriceras Neocomitidae Neocomitidae Aguirre-Urreta, M.B. Rawson, P.F. Lower cretaceous ammonites from the neuquén basin argentina: The hauterivian neocomitid genus hoplitocrioceras(giovine 1950)
topic_facet	Ammonites Argentian Biostratigraphy Lower cretaceous Lower hauterivian Neocomitidae Neuquén basin biostratigraphy Cretaceous Hauterivian new species paleontology Argentina Neuquen Basin Ammonoidea Ammonoidea Hoplitocriceras Neocomitidae Neocomitidae
description	Hoplitocrioceras is a poorly-known ammonite genus of late Early Hauterivian age that may be endemic to the Neuquén Basin Argentina where it occurs at a clearly defined horizon in the Agrio Formation. It is an unusual genus with uncoiling (crioceratitid) whorls that remain linked by a thick dorsal shell that drapes over the tips of sharp upwardly-pointing ventro-lateral spines. It has been interpreted as either a necomitis or a crioceratitid but is here regarded as one of the last members of the Family Neocomitidae. One new species is proposed: H. giovinei. © 2001 Academic Press.
format	JOUR
author	Aguirre-Urreta, M.B. Rawson, P.F.
author_facet	Aguirre-Urreta, M.B. Rawson, P.F.
author_sort	Aguirre-Urreta, M.B.
title	Lower cretaceous ammonites from the neuquén basin argentina: The hauterivian neocomitid genus hoplitocrioceras(giovine 1950)
title_short	Lower cretaceous ammonites from the neuquén basin argentina: The hauterivian neocomitid genus hoplitocrioceras(giovine 1950)
title_full	Lower cretaceous ammonites from the neuquén basin argentina: The hauterivian neocomitid genus hoplitocrioceras(giovine 1950)
title_fullStr	Lower cretaceous ammonites from the neuquén basin argentina: The hauterivian neocomitid genus hoplitocrioceras(giovine 1950)
title_full_unstemmed	Lower cretaceous ammonites from the neuquén basin argentina: The hauterivian neocomitid genus hoplitocrioceras(giovine 1950)
title_sort	lower cretaceous ammonites from the neuquén basin argentina: the hauterivian neocomitid genus hoplitocrioceras(giovine 1950)
url	http://hdl.handle.net/20.500.12110/paper_01956671_v22_n2_p201_AguirreUrreta
work_keys_str_mv	AT aguirreurretamb lowercretaceousammonitesfromtheneuquenbasinargentinathehauterivianneocomitidgenushoplitocriocerasgiovine1950 AT rawsonpf lowercretaceousammonitesfromtheneuquenbasinargentinathehauterivianneocomitidgenushoplitocriocerasgiovine1950
_version_	1782030887913783296

Lower cretaceous ammonites from the neuquén basin argentina: The hauterivian neocomitid genus hoplitocrioceras(giovine 1950)

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