Vertebrate coprolites from the Triassic of Argentina (Cuyana Basin)

Abundant vertebrate coprolites collected from the Triassic Potrerillos, Cacheuta and Río Blanco formations (Cuyana Basin) are analyzed. The studied material includes both specimens originally described by Rusconi plus many new undescribed materials. Four morphotypes were identified on the basis of t...

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Detalles Bibliográficos
Autores principales: Mancuso, Adriana Cecilia, Marsicano, Claudia Alicia, Palma, Ricardo Manuel
Publicado: 2004
Materias:
Argentina
Coprolites
Cuyana Basin
Lake deposits
Triassic
coprolite
fossil
vertebrate
South America
Western Hemisphere
World
Amphibia
Coelacanthidae
Cuyana
Dipnoi
Pisces
Vertebrata
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00027014_v41_n3_p347_Mancuso
http://hdl.handle.net/20.500.12110/paper_00027014_v41_n3_p347_Mancuso
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00027014_v41_n3_p347_Mancuso
record_format dspace
spelling paper:paper_00027014_v41_n3_p347_Mancuso2023-06-08T14:22:09Z Vertebrate coprolites from the Triassic of Argentina (Cuyana Basin) Mancuso, Adriana Cecilia Marsicano, Claudia Alicia Palma, Ricardo Manuel Argentina Coprolites Cuyana Basin Lake deposits Triassic coprolite fossil Triassic vertebrate Argentina Cuyana Basin South America Western Hemisphere World Amphibia Coelacanthidae Cuyana Dipnoi Pisces Vertebrata Abundant vertebrate coprolites collected from the Triassic Potrerillos, Cacheuta and Río Blanco formations (Cuyana Basin) are analyzed. The studied material includes both specimens originally described by Rusconi plus many new undescribed materials. Four morphotypes were identified on the basis of the morphological features of the coprolites as shape, surface texture, size and internal structure, among others. Morphotype A is characterized by spiral coprolites with also an internal coiled aspect and they contain numerous ganoid scales. Morphotype B includes coprolites with an amorphous homogeneous phosphatic internal structure, in contrast with those of Morphotype C which present a phosphatic granulate internal aspect. Finally, Morphotype D is characterized by an agglomeration of ganoid scales visible both externally and internally. The four morphotypes show similar sedimentological and taphonomic features that suggest that their producers inhabited the water bodies. Moreover, their phosphatic composition and inclusions of fish scales are considered unequivocal evidence of the carnivore diet of their producers. Aquatic vertebrates known by skeletal remains from the same levels are actinopterigian fishes and temnospondyl amphibians and are the more likely producers of the studied coprolites. Particularly, Morphotype A might be also related to dipnoans or coelacanths though morphotypes B, C and D can not be specifically related to any vertebrate group. Nevertheless, their morphological and compositional differences suggest quite dissimilar producers. Fil:Mancuso, A.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Marsicano, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Palma, R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2004 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00027014_v41_n3_p347_Mancuso http://hdl.handle.net/20.500.12110/paper_00027014_v41_n3_p347_Mancuso
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Argentina
Coprolites
Cuyana Basin
Lake deposits
Triassic
coprolite
fossil
Triassic
vertebrate
Argentina
Cuyana Basin
South America
Western Hemisphere
World
Amphibia
Coelacanthidae
Cuyana
Dipnoi
Pisces
Vertebrata
spellingShingle Argentina
Coprolites
Cuyana Basin
Lake deposits
Triassic
coprolite
fossil
Triassic
vertebrate
Argentina
Cuyana Basin
South America
Western Hemisphere
World
Amphibia
Coelacanthidae
Cuyana
Dipnoi
Pisces
Vertebrata
Mancuso, Adriana Cecilia
Marsicano, Claudia Alicia
Palma, Ricardo Manuel
Vertebrate coprolites from the Triassic of Argentina (Cuyana Basin)
topic_facet Argentina
Coprolites
Cuyana Basin
Lake deposits
Triassic
coprolite
fossil
Triassic
vertebrate
Argentina
Cuyana Basin
South America
Western Hemisphere
World
Amphibia
Coelacanthidae
Cuyana
Dipnoi
Pisces
Vertebrata
description Abundant vertebrate coprolites collected from the Triassic Potrerillos, Cacheuta and Río Blanco formations (Cuyana Basin) are analyzed. The studied material includes both specimens originally described by Rusconi plus many new undescribed materials. Four morphotypes were identified on the basis of the morphological features of the coprolites as shape, surface texture, size and internal structure, among others. Morphotype A is characterized by spiral coprolites with also an internal coiled aspect and they contain numerous ganoid scales. Morphotype B includes coprolites with an amorphous homogeneous phosphatic internal structure, in contrast with those of Morphotype C which present a phosphatic granulate internal aspect. Finally, Morphotype D is characterized by an agglomeration of ganoid scales visible both externally and internally. The four morphotypes show similar sedimentological and taphonomic features that suggest that their producers inhabited the water bodies. Moreover, their phosphatic composition and inclusions of fish scales are considered unequivocal evidence of the carnivore diet of their producers. Aquatic vertebrates known by skeletal remains from the same levels are actinopterigian fishes and temnospondyl amphibians and are the more likely producers of the studied coprolites. Particularly, Morphotype A might be also related to dipnoans or coelacanths though morphotypes B, C and D can not be specifically related to any vertebrate group. Nevertheless, their morphological and compositional differences suggest quite dissimilar producers.
author Mancuso, Adriana Cecilia
Marsicano, Claudia Alicia
Palma, Ricardo Manuel
author_facet Mancuso, Adriana Cecilia
Marsicano, Claudia Alicia
Palma, Ricardo Manuel
author_sort Mancuso, Adriana Cecilia
title Vertebrate coprolites from the Triassic of Argentina (Cuyana Basin)
title_short Vertebrate coprolites from the Triassic of Argentina (Cuyana Basin)
title_full Vertebrate coprolites from the Triassic of Argentina (Cuyana Basin)
title_fullStr Vertebrate coprolites from the Triassic of Argentina (Cuyana Basin)
title_full_unstemmed Vertebrate coprolites from the Triassic of Argentina (Cuyana Basin)
title_sort vertebrate coprolites from the triassic of argentina (cuyana basin)
publishDate 2004
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00027014_v41_n3_p347_Mancuso
http://hdl.handle.net/20.500.12110/paper_00027014_v41_n3_p347_Mancuso
work_keys_str_mv AT mancusoadrianacecilia vertebratecoprolitesfromthetriassicofargentinacuyanabasin
AT marsicanoclaudiaalicia vertebratecoprolitesfromthetriassicofargentinacuyanabasin
AT palmaricardomanuel vertebratecoprolitesfromthetriassicofargentinacuyanabasin
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