Paradictyodora antarctica: A new complex vertical spreite trace fossil from the Upper Cretaceous-Paleogene of Antarctica and Tierra del Fuego, Argentina

A new ichnotaxon, Paradictyodora antarctica, is proposed for complex spreite trace fossils from the Upper Cretaceous of Antarctica and Eocene of Tierra del Fuego, Argentina. This complex, three-dimensional, vertical spreite structure enlarges upwards, displaying a prismatic-to-conical shape that con...

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Detalles Bibliográficos
Autores principales: Olivero, E.B., Buatois, L.A., Scasso, R.A.
Formato: JOUR
Materias:
Cretaceous
Eocene
ichnology
trace fossil
Daedalus
Dictyodora
Heimdallia
Lamiinae
Paradictyodora antarctica
Vertebrata
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00223360_v78_n4_p783_Olivero
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00223360_v78_n4_p783_Olivero
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spelling todo:paper_00223360_v78_n4_p783_Olivero2023-10-03T14:31:39Z Paradictyodora antarctica: A new complex vertical spreite trace fossil from the Upper Cretaceous-Paleogene of Antarctica and Tierra del Fuego, Argentina Olivero, E.B. Buatois, L.A. Scasso, R.A. Cretaceous Eocene ichnology trace fossil Daedalus Dictyodora Heimdallia Lamiinae Paradictyodora antarctica Vertebrata A new ichnotaxon, Paradictyodora antarctica, is proposed for complex spreite trace fossils from the Upper Cretaceous of Antarctica and Eocene of Tierra del Fuego, Argentina. This complex, three-dimensional, vertical spreite structure enlarges upwards, displaying a prismatic-to-conical shape that consists of subvertical folded laminae, produced by the lateral migration of a subvertical J-shaped tube anchored at its base. Overall morphology and mode of formation distinguishes this new ichnotaxa from other ichnogenera such as Daedalus, Dictyodora, and Heimdallia. Paradictyodora occurs in fodinichnia-dominated ichnocoenosis developed in distal fine-grained deposits of deepwater fan delta systems. Fil:Olivero, E.B. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Buatois, L.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Scasso, R.A. 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_00223360_v78_n4_p783_Olivero
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Cretaceous
Eocene
ichnology
trace fossil
Daedalus
Dictyodora
Heimdallia
Lamiinae
Paradictyodora antarctica
Vertebrata
spellingShingle Cretaceous
Eocene
ichnology
trace fossil
Daedalus
Dictyodora
Heimdallia
Lamiinae
Paradictyodora antarctica
Vertebrata
Olivero, E.B.
Buatois, L.A.
Scasso, R.A.
Paradictyodora antarctica: A new complex vertical spreite trace fossil from the Upper Cretaceous-Paleogene of Antarctica and Tierra del Fuego, Argentina
topic_facet Cretaceous
Eocene
ichnology
trace fossil
Daedalus
Dictyodora
Heimdallia
Lamiinae
Paradictyodora antarctica
Vertebrata
description A new ichnotaxon, Paradictyodora antarctica, is proposed for complex spreite trace fossils from the Upper Cretaceous of Antarctica and Eocene of Tierra del Fuego, Argentina. This complex, three-dimensional, vertical spreite structure enlarges upwards, displaying a prismatic-to-conical shape that consists of subvertical folded laminae, produced by the lateral migration of a subvertical J-shaped tube anchored at its base. Overall morphology and mode of formation distinguishes this new ichnotaxa from other ichnogenera such as Daedalus, Dictyodora, and Heimdallia. Paradictyodora occurs in fodinichnia-dominated ichnocoenosis developed in distal fine-grained deposits of deepwater fan delta systems.
format JOUR
author Olivero, E.B.
Buatois, L.A.
Scasso, R.A.
author_facet Olivero, E.B.
Buatois, L.A.
Scasso, R.A.
author_sort Olivero, E.B.
title Paradictyodora antarctica: A new complex vertical spreite trace fossil from the Upper Cretaceous-Paleogene of Antarctica and Tierra del Fuego, Argentina
title_short Paradictyodora antarctica: A new complex vertical spreite trace fossil from the Upper Cretaceous-Paleogene of Antarctica and Tierra del Fuego, Argentina
title_full Paradictyodora antarctica: A new complex vertical spreite trace fossil from the Upper Cretaceous-Paleogene of Antarctica and Tierra del Fuego, Argentina
title_fullStr Paradictyodora antarctica: A new complex vertical spreite trace fossil from the Upper Cretaceous-Paleogene of Antarctica and Tierra del Fuego, Argentina
title_full_unstemmed Paradictyodora antarctica: A new complex vertical spreite trace fossil from the Upper Cretaceous-Paleogene of Antarctica and Tierra del Fuego, Argentina
title_sort paradictyodora antarctica: a new complex vertical spreite trace fossil from the upper cretaceous-paleogene of antarctica and tierra del fuego, argentina
url http://hdl.handle.net/20.500.12110/paper_00223360_v78_n4_p783_Olivero
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AT buatoisla paradictyodoraantarcticaanewcomplexverticalspreitetracefossilfromtheuppercretaceouspaleogeneofantarcticaandtierradelfuegoargentina
AT scassora paradictyodoraantarcticaanewcomplexverticalspreitetracefossilfromtheuppercretaceouspaleogeneofantarcticaandtierradelfuegoargentina
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