Palynoassemblages associated with a theropod dinosaur from the Snow Hill Island Formation (lower Maastrichtian) at the Naze, James Ross Island, Antarctica
The Cape Lamb Member of the Snow Hill Island Formation at The Naze on the northern margin of James Ross Island, east of the Antarctic Peninsula, yielded a theropod dinosaur recovered near the middle of a 90m thick section that begins at sea level, ends below a basalt sill, and is composed of interbe...
Published in: | Cretaceous Research |
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Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
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Academic Press Ltd - Elsevier Science Ltd
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Online Access: | http://hdl.handle.net/11336/80121 |
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ftconicet:oai:ri.conicet.gov.ar:11336/80121 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
Antarctica Early Maastrichtian James Ross Island Paleoenvironment Palynostratigraphy Snow Hill Island Formation https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
Antarctica Early Maastrichtian James Ross Island Paleoenvironment Palynostratigraphy Snow Hill Island Formation https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Di Pasquo Lartigue, Maria Martin, James E. Palynoassemblages associated with a theropod dinosaur from the Snow Hill Island Formation (lower Maastrichtian) at the Naze, James Ross Island, Antarctica |
topic_facet |
Antarctica Early Maastrichtian James Ross Island Paleoenvironment Palynostratigraphy Snow Hill Island Formation https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
The Cape Lamb Member of the Snow Hill Island Formation at The Naze on the northern margin of James Ross Island, east of the Antarctic Peninsula, yielded a theropod dinosaur recovered near the middle of a 90m thick section that begins at sea level, ends below a basalt sill, and is composed of interbedded green-gray massive and laminated fine-grained sandstones and mudstones. Sixteen palynoassemblages were recovered from this section, which yielded moderately diverse assemblages with a total of 100 relatively well-preserved species. The principal terrestrial groups (32%) are represented by lycophytes (8 species), pteridophytes (15 species), gymnosperms (13 species), angiosperms (21 species) and freshwater chlorococcaleans (3 species). Marine palynomorphs (68%) belong to dinoflagellates (61 species), chlorococcaleans (6 species), and one acritarch. The vertical distribution of selected species allows the distinction of two informal assemblages, the lower Odontochitina porifera assemblage from the base to its disappearance in the lower part of the section, and the remaining section characterized by the Batiacasphaera grandis assemblage. The global stratigraphic ranges of selected palynomorphs suggest an early Maastrichtian age for this section and the entombed dinosaur that is also supported by the presence of the ammonoid Kitchinites darwinii. These assemblages share many species with latest Campanian-early Maastrichtian palynofloras from Vega and Humps Islands, New Zealand, and elsewhere in the Southern Ocean, establishing a good correlation among them. The dominance or frequent presence of dinoflagellates throughout the section supports the general interpretation of a shelf marine depocenter. The consistent presence of terrestrial palynomorphs suggests contributions from littoral/inland environments. Fil: Di Pasquo Lartigue, Maria. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones ... |
format |
Article in Journal/Newspaper |
author |
Di Pasquo Lartigue, Maria Martin, James E. |
author_facet |
Di Pasquo Lartigue, Maria Martin, James E. |
author_sort |
Di Pasquo Lartigue, Maria |
title |
Palynoassemblages associated with a theropod dinosaur from the Snow Hill Island Formation (lower Maastrichtian) at the Naze, James Ross Island, Antarctica |
title_short |
Palynoassemblages associated with a theropod dinosaur from the Snow Hill Island Formation (lower Maastrichtian) at the Naze, James Ross Island, Antarctica |
title_full |
Palynoassemblages associated with a theropod dinosaur from the Snow Hill Island Formation (lower Maastrichtian) at the Naze, James Ross Island, Antarctica |
title_fullStr |
Palynoassemblages associated with a theropod dinosaur from the Snow Hill Island Formation (lower Maastrichtian) at the Naze, James Ross Island, Antarctica |
title_full_unstemmed |
Palynoassemblages associated with a theropod dinosaur from the Snow Hill Island Formation (lower Maastrichtian) at the Naze, James Ross Island, Antarctica |
title_sort |
palynoassemblages associated with a theropod dinosaur from the snow hill island formation (lower maastrichtian) at the naze, james ross island, antarctica |
publisher |
Academic Press Ltd - Elsevier Science Ltd |
url |
http://hdl.handle.net/11336/80121 |
long_lat |
ENVELOPE(76.070,76.070,-69.395,-69.395) ENVELOPE(-57.183,-57.183,-64.466,-64.466) ENVELOPE(-57.450,-57.450,-63.983,-63.983) ENVELOPE(-66.333,-66.333,-66.433,-66.433) ENVELOPE(-57.621,-57.621,-63.909,-63.909) ENVELOPE(-57.517,-57.517,-63.917,-63.917) ENVELOPE(-57.533,-57.533,-63.950,-63.950) ENVELOPE(-57.183,-57.183,-64.466,-64.466) |
geographic |
Antarctic Southern Ocean The Antarctic Antarctic Peninsula Ross Island New Zealand Hill Island Snow Hill Island Humps Entre Ríos Cape Lamb Naze The Naze Snow Hill |
geographic_facet |
Antarctic Southern Ocean The Antarctic Antarctic Peninsula Ross Island New Zealand Hill Island Snow Hill Island Humps Entre Ríos Cape Lamb Naze The Naze Snow Hill |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica James Ross Island Ross Island Snow Hill Island Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica James Ross Island Ross Island Snow Hill Island Southern Ocean |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0195667113001171 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cretres.2013.07.008 http://hdl.handle.net/11336/80121 Di Pasquo Lartigue, Maria; Martin, James E.; Palynoassemblages associated with a theropod dinosaur from the Snow Hill Island Formation (lower Maastrichtian) at the Naze, James Ross Island, Antarctica; Academic Press Ltd - Elsevier Science Ltd; Cretaceous Research; 45; 10-2013; 135-154 0195-6671 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1016/j.cretres.2013.07.008 |
container_title |
Cretaceous Research |
container_volume |
45 |
container_start_page |
135 |
op_container_end_page |
154 |
_version_ |
1779309828921884672 |
spelling |
ftconicet:oai:ri.conicet.gov.ar:11336/80121 2023-10-09T21:47:05+02:00 Palynoassemblages associated with a theropod dinosaur from the Snow Hill Island Formation (lower Maastrichtian) at the Naze, James Ross Island, Antarctica Di Pasquo Lartigue, Maria Martin, James E. application/pdf http://hdl.handle.net/11336/80121 eng eng Academic Press Ltd - Elsevier Science Ltd info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0195667113001171 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cretres.2013.07.008 http://hdl.handle.net/11336/80121 Di Pasquo Lartigue, Maria; Martin, James E.; Palynoassemblages associated with a theropod dinosaur from the Snow Hill Island Formation (lower Maastrichtian) at the Naze, James Ross Island, Antarctica; Academic Press Ltd - Elsevier Science Ltd; Cretaceous Research; 45; 10-2013; 135-154 0195-6671 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Antarctica Early Maastrichtian James Ross Island Paleoenvironment Palynostratigraphy Snow Hill Island Formation https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1016/j.cretres.2013.07.008 2023-09-24T20:23:21Z The Cape Lamb Member of the Snow Hill Island Formation at The Naze on the northern margin of James Ross Island, east of the Antarctic Peninsula, yielded a theropod dinosaur recovered near the middle of a 90m thick section that begins at sea level, ends below a basalt sill, and is composed of interbedded green-gray massive and laminated fine-grained sandstones and mudstones. Sixteen palynoassemblages were recovered from this section, which yielded moderately diverse assemblages with a total of 100 relatively well-preserved species. The principal terrestrial groups (32%) are represented by lycophytes (8 species), pteridophytes (15 species), gymnosperms (13 species), angiosperms (21 species) and freshwater chlorococcaleans (3 species). Marine palynomorphs (68%) belong to dinoflagellates (61 species), chlorococcaleans (6 species), and one acritarch. The vertical distribution of selected species allows the distinction of two informal assemblages, the lower Odontochitina porifera assemblage from the base to its disappearance in the lower part of the section, and the remaining section characterized by the Batiacasphaera grandis assemblage. The global stratigraphic ranges of selected palynomorphs suggest an early Maastrichtian age for this section and the entombed dinosaur that is also supported by the presence of the ammonoid Kitchinites darwinii. These assemblages share many species with latest Campanian-early Maastrichtian palynofloras from Vega and Humps Islands, New Zealand, and elsewhere in the Southern Ocean, establishing a good correlation among them. The dominance or frequent presence of dinoflagellates throughout the section supports the general interpretation of a shelf marine depocenter. The consistent presence of terrestrial palynomorphs suggests contributions from littoral/inland environments. Fil: Di Pasquo Lartigue, Maria. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica James Ross Island Ross Island Snow Hill Island Southern Ocean CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic Southern Ocean The Antarctic Antarctic Peninsula Ross Island New Zealand Hill Island ENVELOPE(76.070,76.070,-69.395,-69.395) Snow Hill Island ENVELOPE(-57.183,-57.183,-64.466,-64.466) Humps ENVELOPE(-57.450,-57.450,-63.983,-63.983) Entre Ríos ENVELOPE(-66.333,-66.333,-66.433,-66.433) Cape Lamb ENVELOPE(-57.621,-57.621,-63.909,-63.909) Naze ENVELOPE(-57.517,-57.517,-63.917,-63.917) The Naze ENVELOPE(-57.533,-57.533,-63.950,-63.950) Snow Hill ENVELOPE(-57.183,-57.183,-64.466,-64.466) Cretaceous Research 45 135 154 |