A novel late Early Miocene assemblage of terrestrial gastropods from Santa Cruz (Patagonia, Argentina)

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A remarkable fossil assemblage composed of five gastropod taxa is described from the Early Miocene of Santa Cruz (Patagonia, Argentina) in southernmost South America. The assemblage includes extinct and living genera South America, and on geographic distributions and represent background new informa...

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Autores principales: Miquel, S.E., Rodriguez, P.E.
Formato: JOUR
Materias:
fauna
fossil assemblage
fossil record
gastropod
geographical distribution
humid environment
Miocene
morphology
new taxon
paleoenvironment
temperate environment
vegetation cover
Argentina
Patagonia
Santa Cruz [Argentina]
Charopidae
Gastrocopta
Gastropoda
Punctidae
Punctum (gastropod)
Vertiginidae
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00223360_v89_n5_p748_Miquel
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00223360_v89_n5_p748_Miquel
record_format dspace
spelling todo:paper_00223360_v89_n5_p748_Miquel2023-10-03T14:31:43Z A novel late Early Miocene assemblage of terrestrial gastropods from Santa Cruz (Patagonia, Argentina) Miquel, S.E. Rodriguez, P.E. fauna fossil assemblage fossil record gastropod geographical distribution humid environment Miocene morphology new taxon paleoenvironment temperate environment vegetation cover Argentina Patagonia Santa Cruz [Argentina] Charopidae Gastrocopta Gastropoda Punctidae Punctum (gastropod) Vertiginidae A remarkable fossil assemblage composed of five gastropod taxa is described from the Early Miocene of Santa Cruz (Patagonia, Argentina) in southernmost South America. The assemblage includes extinct and living genera South America, and on geographic distributions and represent background new information on spatial and across time distributions as well as identification of new taxa. A new taxon, Patagocharopa enigmatica n. gen. n. sp., is tentatively assigned to Charopidae. Gastrocopta patagonica n. sp. (Vertiginidae) represents the oldest record of Gastrocopta in Argentina and the southernmost record for the Americas. Punctum patagonicum n. sp. (Punctidae) represents the first record of Punctum for continental South America, and characterized by a protoconch with traces of axial costulae and a teleoconch with strong radial ribs. Zilchogyra miocenica n. sp. is the first Miocene record of the charopid genus Zilchogyra. Fragments of a possible Scolodonta (Scolodontidae) are recorded. Overall, the assemblage represents an important and useful paleoenvironmental tool. This fauna suggests that a more temperate and humid environment than today-with a more dense vegetation cover-was prevalent at this site during the Early Miocene. © 2016, The Paleontological Society. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00223360_v89_n5_p748_Miquel
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic fauna
fossil assemblage
fossil record
gastropod
geographical distribution
humid environment
Miocene
morphology
new taxon
paleoenvironment
temperate environment
vegetation cover
Argentina
Patagonia
Santa Cruz [Argentina]
Charopidae
Gastrocopta
Gastropoda
Punctidae
Punctum (gastropod)
Vertiginidae
spellingShingle fauna
fossil assemblage
fossil record
gastropod
geographical distribution
humid environment
Miocene
morphology
new taxon
paleoenvironment
temperate environment
vegetation cover
Argentina
Patagonia
Santa Cruz [Argentina]
Charopidae
Gastrocopta
Gastropoda
Punctidae
Punctum (gastropod)
Vertiginidae
Miquel, S.E.
Rodriguez, P.E.
A novel late Early Miocene assemblage of terrestrial gastropods from Santa Cruz (Patagonia, Argentina)
topic_facet fauna
fossil assemblage
fossil record
gastropod
geographical distribution
humid environment
Miocene
morphology
new taxon
paleoenvironment
temperate environment
vegetation cover
Argentina
Patagonia
Santa Cruz [Argentina]
Charopidae
Gastrocopta
Gastropoda
Punctidae
Punctum (gastropod)
Vertiginidae
description A remarkable fossil assemblage composed of five gastropod taxa is described from the Early Miocene of Santa Cruz (Patagonia, Argentina) in southernmost South America. The assemblage includes extinct and living genera South America, and on geographic distributions and represent background new information on spatial and across time distributions as well as identification of new taxa. A new taxon, Patagocharopa enigmatica n. gen. n. sp., is tentatively assigned to Charopidae. Gastrocopta patagonica n. sp. (Vertiginidae) represents the oldest record of Gastrocopta in Argentina and the southernmost record for the Americas. Punctum patagonicum n. sp. (Punctidae) represents the first record of Punctum for continental South America, and characterized by a protoconch with traces of axial costulae and a teleoconch with strong radial ribs. Zilchogyra miocenica n. sp. is the first Miocene record of the charopid genus Zilchogyra. Fragments of a possible Scolodonta (Scolodontidae) are recorded. Overall, the assemblage represents an important and useful paleoenvironmental tool. This fauna suggests that a more temperate and humid environment than today-with a more dense vegetation cover-was prevalent at this site during the Early Miocene. © 2016, The Paleontological Society.
format JOUR
author Miquel, S.E.
Rodriguez, P.E.
author_facet Miquel, S.E.
Rodriguez, P.E.
author_sort Miquel, S.E.
title A novel late Early Miocene assemblage of terrestrial gastropods from Santa Cruz (Patagonia, Argentina)
title_short A novel late Early Miocene assemblage of terrestrial gastropods from Santa Cruz (Patagonia, Argentina)
title_full A novel late Early Miocene assemblage of terrestrial gastropods from Santa Cruz (Patagonia, Argentina)
title_fullStr A novel late Early Miocene assemblage of terrestrial gastropods from Santa Cruz (Patagonia, Argentina)
title_full_unstemmed A novel late Early Miocene assemblage of terrestrial gastropods from Santa Cruz (Patagonia, Argentina)
title_sort novel late early miocene assemblage of terrestrial gastropods from santa cruz (patagonia, argentina)
url http://hdl.handle.net/20.500.12110/paper_00223360_v89_n5_p748_Miquel
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AT rodriguezpe anovellateearlymioceneassemblageofterrestrialgastropodsfromsantacruzpatagoniaargentina
AT miquelse novellateearlymioceneassemblageofterrestrialgastropodsfromsantacruzpatagoniaargentina
AT rodriguezpe novellateearlymioceneassemblageofterrestrialgastropodsfromsantacruzpatagoniaargentina
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