A new gastropod mollusc, Antarctissitys austrodema gen. et sp. Nov., from the upper Maastrichtian of Antarctica and its evolutionary significance
The Maastrichtian López de Bertodano Formation of Seymour Island, Antarctic Peninsula, hosts the most diverse assemblage of Late Cretaceous molluscs from the continent. Described here is a new genus and species of gastropod, Antarctissitys austrodema gen. et sp. nov., from the upper units of the for...
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ftjamescook:oai:researchonline.jcu.edu.au:13738 2024-02-11T09:58:39+01:00 A new gastropod mollusc, Antarctissitys austrodema gen. et sp. Nov., from the upper Maastrichtian of Antarctica and its evolutionary significance Stilwell, Jeffrey D. Zinsmeister, William J. 2003 application/pdf https://researchonline.jcu.edu.au/13738/1/13738_Stilwell_%26_Zinsmeister_2003.pdf unknown Academic Press Ltd http://dx.doi.org/10.1016/S0195-6671(03)00035-1 https://researchonline.jcu.edu.au/13738/ https://researchonline.jcu.edu.au/13738/1/13738_Stilwell_%26_Zinsmeister_2003.pdf Stilwell, Jeffrey D., and Zinsmeister, William J. (2003) A new gastropod mollusc, Antarctissitys austrodema gen. et sp. Nov., from the upper Maastrichtian of Antarctica and its evolutionary significance. Cretaceous Research, 24 (2). pp. 111-118. restricted Article PeerReviewed 2003 ftjamescook https://doi.org/10.1016/S0195-6671(03)00035-1 2024-01-22T23:26:02Z The Maastrichtian López de Bertodano Formation of Seymour Island, Antarctic Peninsula, hosts the most diverse assemblage of Late Cretaceous molluscs from the continent. Described here is a new genus and species of gastropod, Antarctissitys austrodema gen. et sp. nov., from the upper units of the formation, which are inferred to represent a mid-shelf clastic environment. Antarctissitys austrodema is assignable to the Perissityidae (Muricoidea) and is the first confirmed record of this family in the Southern Hemisphere, indicating a much more widespread Cretaceous geographic distribution. Fusus dusenianus Wilckens from the Upper Cretaceous of Patagonia and Perissitys? sp. from the Maastrichtian of New Zealand may also belong in Perissityidae, but preservational deficiencies prevent any firm assessment. The affinities of Antarctissitys gen. nov. lie with a diverse suite of perissityid taxa in the Upper Cretaceous of North America, belonging predominantly to Perissitys. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Seymour Island James Cook University, Australia: ResearchOnline@JCU Antarctic Antarctic Peninsula New Zealand Patagonia Seymour ENVELOPE(-56.767,-56.767,-64.283,-64.283) Seymour Island ENVELOPE(-56.750,-56.750,-64.283,-64.283) Cretaceous Research 24 2 111 118 |
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Open Polar |
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James Cook University, Australia: ResearchOnline@JCU |
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ftjamescook |
language |
unknown |
description |
The Maastrichtian López de Bertodano Formation of Seymour Island, Antarctic Peninsula, hosts the most diverse assemblage of Late Cretaceous molluscs from the continent. Described here is a new genus and species of gastropod, Antarctissitys austrodema gen. et sp. nov., from the upper units of the formation, which are inferred to represent a mid-shelf clastic environment. Antarctissitys austrodema is assignable to the Perissityidae (Muricoidea) and is the first confirmed record of this family in the Southern Hemisphere, indicating a much more widespread Cretaceous geographic distribution. Fusus dusenianus Wilckens from the Upper Cretaceous of Patagonia and Perissitys? sp. from the Maastrichtian of New Zealand may also belong in Perissityidae, but preservational deficiencies prevent any firm assessment. The affinities of Antarctissitys gen. nov. lie with a diverse suite of perissityid taxa in the Upper Cretaceous of North America, belonging predominantly to Perissitys. |
format |
Article in Journal/Newspaper |
author |
Stilwell, Jeffrey D. Zinsmeister, William J. |
spellingShingle |
Stilwell, Jeffrey D. Zinsmeister, William J. A new gastropod mollusc, Antarctissitys austrodema gen. et sp. Nov., from the upper Maastrichtian of Antarctica and its evolutionary significance |
author_facet |
Stilwell, Jeffrey D. Zinsmeister, William J. |
author_sort |
Stilwell, Jeffrey D. |
title |
A new gastropod mollusc, Antarctissitys austrodema gen. et sp. Nov., from the upper Maastrichtian of Antarctica and its evolutionary significance |
title_short |
A new gastropod mollusc, Antarctissitys austrodema gen. et sp. Nov., from the upper Maastrichtian of Antarctica and its evolutionary significance |
title_full |
A new gastropod mollusc, Antarctissitys austrodema gen. et sp. Nov., from the upper Maastrichtian of Antarctica and its evolutionary significance |
title_fullStr |
A new gastropod mollusc, Antarctissitys austrodema gen. et sp. Nov., from the upper Maastrichtian of Antarctica and its evolutionary significance |
title_full_unstemmed |
A new gastropod mollusc, Antarctissitys austrodema gen. et sp. Nov., from the upper Maastrichtian of Antarctica and its evolutionary significance |
title_sort |
new gastropod mollusc, antarctissitys austrodema gen. et sp. nov., from the upper maastrichtian of antarctica and its evolutionary significance |
publisher |
Academic Press Ltd |
publishDate |
2003 |
url |
https://researchonline.jcu.edu.au/13738/1/13738_Stilwell_%26_Zinsmeister_2003.pdf |
long_lat |
ENVELOPE(-56.767,-56.767,-64.283,-64.283) ENVELOPE(-56.750,-56.750,-64.283,-64.283) |
geographic |
Antarctic Antarctic Peninsula New Zealand Patagonia Seymour Seymour Island |
geographic_facet |
Antarctic Antarctic Peninsula New Zealand Patagonia Seymour Seymour Island |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Seymour Island |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Seymour Island |
op_relation |
http://dx.doi.org/10.1016/S0195-6671(03)00035-1 https://researchonline.jcu.edu.au/13738/ https://researchonline.jcu.edu.au/13738/1/13738_Stilwell_%26_Zinsmeister_2003.pdf Stilwell, Jeffrey D., and Zinsmeister, William J. (2003) A new gastropod mollusc, Antarctissitys austrodema gen. et sp. Nov., from the upper Maastrichtian of Antarctica and its evolutionary significance. Cretaceous Research, 24 (2). pp. 111-118. |
op_rights |
restricted |
op_doi |
https://doi.org/10.1016/S0195-6671(03)00035-1 |
container_title |
Cretaceous Research |
container_volume |
24 |
container_issue |
2 |
container_start_page |
111 |
op_container_end_page |
118 |
_version_ |
1790594374578470912 |