New Valanginian–Hauterivian neocomitid ammonites from the Neuquén Basin, Argentina

Three distinct, rich neocomitid faunas occur in the Agrio Formation (middle Valanginian to lowermost Barremian). In the ammonite sequences between, neocomitids are very rare and limited to two thin horizons. The lower, upper Valanginian level has yielded Neocomites (Varlheideites) cf. peregrinus Raw...

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Detalles Bibliográficos
Autores principales: Aguirre-Urreta, B., Rawson, P.F.
Formato: JOUR
Materias:
Agrio Formation
Ammonite
Andes
Early Cretaceous
Paleogeography
ammonite
Cretaceous
endemic species
new species
new taxon
paleogeography
Ammonoidea
Neocomitidae
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01956671_v88_n_p149_AguirreUrreta
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_01956671_v88_n_p149_AguirreUrreta
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spelling todo:paper_01956671_v88_n_p149_AguirreUrreta2023-10-03T15:09:37Z New Valanginian–Hauterivian neocomitid ammonites from the Neuquén Basin, Argentina Aguirre-Urreta, B. Rawson, P.F. Agrio Formation Ammonite Andes Early Cretaceous Paleogeography ammonite Cretaceous endemic species new species new taxon paleogeography Andes Ammonoidea Neocomitidae Three distinct, rich neocomitid faunas occur in the Agrio Formation (middle Valanginian to lowermost Barremian). In the ammonite sequences between, neocomitids are very rare and limited to two thin horizons. The lower, upper Valanginian level has yielded Neocomites (Varlheideites) cf. peregrinus Rawson and Kemper, Neocomites (Varlheideites) sp. nov.? and Rodighieroites sp. which are widely distributed taxa. The upper level contains Comahueites aequalicostatus gen. et sp. nov., which appears endemic to the basin. © 2017 Elsevier Ltd Fil:Aguirre-Urreta, B. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01956671_v88_n_p149_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 Agrio Formation
Ammonite
Andes
Early Cretaceous
Paleogeography
ammonite
Cretaceous
endemic species
new species
new taxon
paleogeography
Andes
Ammonoidea
Neocomitidae
spellingShingle Agrio Formation
Ammonite
Andes
Early Cretaceous
Paleogeography
ammonite
Cretaceous
endemic species
new species
new taxon
paleogeography
Andes
Ammonoidea
Neocomitidae
Aguirre-Urreta, B.
Rawson, P.F.
New Valanginian–Hauterivian neocomitid ammonites from the Neuquén Basin, Argentina
topic_facet Agrio Formation
Ammonite
Andes
Early Cretaceous
Paleogeography
ammonite
Cretaceous
endemic species
new species
new taxon
paleogeography
Andes
Ammonoidea
Neocomitidae
description Three distinct, rich neocomitid faunas occur in the Agrio Formation (middle Valanginian to lowermost Barremian). In the ammonite sequences between, neocomitids are very rare and limited to two thin horizons. The lower, upper Valanginian level has yielded Neocomites (Varlheideites) cf. peregrinus Rawson and Kemper, Neocomites (Varlheideites) sp. nov.? and Rodighieroites sp. which are widely distributed taxa. The upper level contains Comahueites aequalicostatus gen. et sp. nov., which appears endemic to the basin. © 2017 Elsevier Ltd
format JOUR
author Aguirre-Urreta, B.
Rawson, P.F.
author_facet Aguirre-Urreta, B.
Rawson, P.F.
author_sort Aguirre-Urreta, B.
title New Valanginian–Hauterivian neocomitid ammonites from the Neuquén Basin, Argentina
title_short New Valanginian–Hauterivian neocomitid ammonites from the Neuquén Basin, Argentina
title_full New Valanginian–Hauterivian neocomitid ammonites from the Neuquén Basin, Argentina
title_fullStr New Valanginian–Hauterivian neocomitid ammonites from the Neuquén Basin, Argentina
title_full_unstemmed New Valanginian–Hauterivian neocomitid ammonites from the Neuquén Basin, Argentina
title_sort new valanginian–hauterivian neocomitid ammonites from the neuquén basin, argentina
url http://hdl.handle.net/20.500.12110/paper_01956671_v88_n_p149_AguirreUrreta
work_keys_str_mv AT aguirreurretab newvalanginianhauterivianneocomitidammonitesfromtheneuquenbasinargentina
AT rawsonpf newvalanginianhauterivianneocomitidammonitesfromtheneuquenbasinargentina
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