New trigonioid bivalves from the Albian (Early Cretaceous) of Alexander Island, Antarctic Peninsula: systematics, paleoecology, and austral Cretaceous paleobiogeography
Newly discovered trigonioid bivalves are systematically described from the Late Albian of the Fossil Bluff Group of Alexander Island, Antarctic Peninsula. The fauna includes Nototrigonia (Nototrigonia) ponticula Skwarko, N. (Callitrigonia) offsetensis n. sp., Eselaevitrigonia macdonaldi n. sp., Pter...
Main Author: | |
---|---|
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Paleontological Society
1995
|
Subjects: | |
Online Access: | http://nora.nerc.ac.uk/id/eprint/515635/ |
id |
ftnerc:oai:nora.nerc.ac.uk:515635 |
---|---|
record_format |
openpolar |
spelling |
ftnerc:oai:nora.nerc.ac.uk:515635 2024-02-11T09:55:02+01:00 New trigonioid bivalves from the Albian (Early Cretaceous) of Alexander Island, Antarctic Peninsula: systematics, paleoecology, and austral Cretaceous paleobiogeography Kelly, Simon R.A. 1995-03 http://nora.nerc.ac.uk/id/eprint/515635/ unknown Paleontological Society Kelly, Simon R.A. 1995 New trigonioid bivalves from the Albian (Early Cretaceous) of Alexander Island, Antarctic Peninsula: systematics, paleoecology, and austral Cretaceous paleobiogeography. Journal of Palaeontology, 69 (2). 264-279. Publication - Article PeerReviewed 1995 ftnerc 2024-01-19T00:03:13Z Newly discovered trigonioid bivalves are systematically described from the Late Albian of the Fossil Bluff Group of Alexander Island, Antarctic Peninsula. The fauna includes Nototrigonia (Nototrigonia) ponticula Skwarko, N. (Callitrigonia) offsetensis n. sp., Eselaevitrigonia macdonaldi n. sp., Pterotrigonia (Pisotrigonia) capricornia (Skwarko), and Pacitrigonia praenuntians n. sp. It represents the first Albian trigonioid fauna described from the Antarctic. It is also the first published record of the Nototrigoniinae (excluding Pacitrigonia) outside Australasia. Paleoecologically, this fauna represents the shallowest and highest energy molluscan assemblage from the Fossil Bluff Group and occurs near the base of a significant transgressive unit, the Mars Glacier Member of the Neptune Glacier Formation. The paleogeography of Austral Cretaceous trigonioids is reviewed. Endemic centers are identified in India--east Africa, southern South America, and Australasia. Only one trigonioid genus, Pacitrigonia, had its origin in the Antarctic. During the earliest Cretaceous, cosmopolitan trigonioid genera occurred in Antarctica. In the mid-Cretaceous faunal similarity of Antarctica with Australasia was strong, and in the latest Cretaceous affinity with southern South America increased. Article in Journal/Newspaper Alexander Island Antarc* Antarctic Antarctic Peninsula Antarctica Mars Glacier Neptune Glacier Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic Antarctic Peninsula Austral Alexander Island ENVELOPE(-69.895,-69.895,-71.287,-71.287) Fossil Bluff ENVELOPE(-68.274,-68.274,-71.332,-71.332) Mars Glacier ENVELOPE(-68.433,-68.433,-71.833,-71.833) Neptune Glacier ENVELOPE(-68.473,-68.473,-71.713,-71.713) |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
description |
Newly discovered trigonioid bivalves are systematically described from the Late Albian of the Fossil Bluff Group of Alexander Island, Antarctic Peninsula. The fauna includes Nototrigonia (Nototrigonia) ponticula Skwarko, N. (Callitrigonia) offsetensis n. sp., Eselaevitrigonia macdonaldi n. sp., Pterotrigonia (Pisotrigonia) capricornia (Skwarko), and Pacitrigonia praenuntians n. sp. It represents the first Albian trigonioid fauna described from the Antarctic. It is also the first published record of the Nototrigoniinae (excluding Pacitrigonia) outside Australasia. Paleoecologically, this fauna represents the shallowest and highest energy molluscan assemblage from the Fossil Bluff Group and occurs near the base of a significant transgressive unit, the Mars Glacier Member of the Neptune Glacier Formation. The paleogeography of Austral Cretaceous trigonioids is reviewed. Endemic centers are identified in India--east Africa, southern South America, and Australasia. Only one trigonioid genus, Pacitrigonia, had its origin in the Antarctic. During the earliest Cretaceous, cosmopolitan trigonioid genera occurred in Antarctica. In the mid-Cretaceous faunal similarity of Antarctica with Australasia was strong, and in the latest Cretaceous affinity with southern South America increased. |
format |
Article in Journal/Newspaper |
author |
Kelly, Simon R.A. |
spellingShingle |
Kelly, Simon R.A. New trigonioid bivalves from the Albian (Early Cretaceous) of Alexander Island, Antarctic Peninsula: systematics, paleoecology, and austral Cretaceous paleobiogeography |
author_facet |
Kelly, Simon R.A. |
author_sort |
Kelly, Simon R.A. |
title |
New trigonioid bivalves from the Albian (Early Cretaceous) of Alexander Island, Antarctic Peninsula: systematics, paleoecology, and austral Cretaceous paleobiogeography |
title_short |
New trigonioid bivalves from the Albian (Early Cretaceous) of Alexander Island, Antarctic Peninsula: systematics, paleoecology, and austral Cretaceous paleobiogeography |
title_full |
New trigonioid bivalves from the Albian (Early Cretaceous) of Alexander Island, Antarctic Peninsula: systematics, paleoecology, and austral Cretaceous paleobiogeography |
title_fullStr |
New trigonioid bivalves from the Albian (Early Cretaceous) of Alexander Island, Antarctic Peninsula: systematics, paleoecology, and austral Cretaceous paleobiogeography |
title_full_unstemmed |
New trigonioid bivalves from the Albian (Early Cretaceous) of Alexander Island, Antarctic Peninsula: systematics, paleoecology, and austral Cretaceous paleobiogeography |
title_sort |
new trigonioid bivalves from the albian (early cretaceous) of alexander island, antarctic peninsula: systematics, paleoecology, and austral cretaceous paleobiogeography |
publisher |
Paleontological Society |
publishDate |
1995 |
url |
http://nora.nerc.ac.uk/id/eprint/515635/ |
long_lat |
ENVELOPE(-69.895,-69.895,-71.287,-71.287) ENVELOPE(-68.274,-68.274,-71.332,-71.332) ENVELOPE(-68.433,-68.433,-71.833,-71.833) ENVELOPE(-68.473,-68.473,-71.713,-71.713) |
geographic |
Antarctic The Antarctic Antarctic Peninsula Austral Alexander Island Fossil Bluff Mars Glacier Neptune Glacier |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Austral Alexander Island Fossil Bluff Mars Glacier Neptune Glacier |
genre |
Alexander Island Antarc* Antarctic Antarctic Peninsula Antarctica Mars Glacier Neptune Glacier |
genre_facet |
Alexander Island Antarc* Antarctic Antarctic Peninsula Antarctica Mars Glacier Neptune Glacier |
op_relation |
Kelly, Simon R.A. 1995 New trigonioid bivalves from the Albian (Early Cretaceous) of Alexander Island, Antarctic Peninsula: systematics, paleoecology, and austral Cretaceous paleobiogeography. Journal of Palaeontology, 69 (2). 264-279. |
_version_ |
1790593571854745600 |