The oldest elasmosaurs (Sauropterygia, Plesiosauria) from Antarctica, Santa Marta Formation (upper Coniacian? Santonian–upper Campanian) and Snow Hill Island Formation (upper Campanian–lower Maastrichtian), James Ross Island
Elasmosaurs are recorded for the first time in the Lachman Crags Member (Beta Member) of the Santa Marta Formation (lower Campanian) and in the Herbert Sound Member of the Snow Hill Island Formation (upper Campanian). These are the first elasmosaurids from James Ross Island, Antarctic Peninsula. The...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Norwegian Polar Institute
2012-10-01
|
| Series: | Polar Research |
| Subjects: | |
| Online Access: | http://www.polarresearch.net/index.php/polar/article/view/11090/pdf |
| _version_ | 1828937729818230784 |
|---|---|
| author | José P. O'Gorman |
| author_facet | José P. O'Gorman |
| author_sort | José P. O'Gorman |
| collection | DOAJ |
| description | Elasmosaurs are recorded for the first time in the Lachman Crags Member (Beta Member) of the Santa Marta Formation (lower Campanian) and in the Herbert Sound Member of the Snow Hill Island Formation (upper Campanian). These are the first elasmosaurids from James Ross Island, Antarctic Peninsula. These records greatly improve our knowledge of the taxonomic diversity of plesiosaurs of the Santa Marta Formation and Herbert Sound Member of the Snow Hill Island Formation, and extend the lower limit of the record of Elasmosauridae in Antarctica to the lower Campanian, making this the oldest record of an Antarctic elasmosaur. |
| first_indexed | 2024-12-14T02:29:28Z |
| format | Article |
| id | doaj.art-a6fab1d8aba240c783d75da66a5e4e23 |
| institution | Directory Open Access Journal |
| issn | 0800-0395 1751-8369 |
| language | English |
| last_indexed | 2024-12-14T02:29:28Z |
| publishDate | 2012-10-01 |
| publisher | Norwegian Polar Institute |
| record_format | Article |
| series | Polar Research |
| spelling | doaj.art-a6fab1d8aba240c783d75da66a5e4e232022-12-21T23:20:18ZengNorwegian Polar InstitutePolar Research0800-03951751-83692012-10-0131011010.3402/polar.v31i0.11090The oldest elasmosaurs (Sauropterygia, Plesiosauria) from Antarctica, Santa Marta Formation (upper Coniacian? Santonian–upper Campanian) and Snow Hill Island Formation (upper Campanian–lower Maastrichtian), James Ross IslandJosé P. O'GormanElasmosaurs are recorded for the first time in the Lachman Crags Member (Beta Member) of the Santa Marta Formation (lower Campanian) and in the Herbert Sound Member of the Snow Hill Island Formation (upper Campanian). These are the first elasmosaurids from James Ross Island, Antarctic Peninsula. These records greatly improve our knowledge of the taxonomic diversity of plesiosaurs of the Santa Marta Formation and Herbert Sound Member of the Snow Hill Island Formation, and extend the lower limit of the record of Elasmosauridae in Antarctica to the lower Campanian, making this the oldest record of an Antarctic elasmosaur.http://www.polarresearch.net/index.php/polar/article/view/11090/pdfElasmosauridaeAntarcticaLate Cretaceous |
| spellingShingle | José P. O'Gorman The oldest elasmosaurs (Sauropterygia, Plesiosauria) from Antarctica, Santa Marta Formation (upper Coniacian? Santonian–upper Campanian) and Snow Hill Island Formation (upper Campanian–lower Maastrichtian), James Ross Island Polar Research Elasmosauridae Antarctica Late Cretaceous |
| title | The oldest elasmosaurs (Sauropterygia, Plesiosauria) from Antarctica, Santa Marta Formation (upper Coniacian? Santonian–upper Campanian) and Snow Hill Island Formation (upper Campanian–lower Maastrichtian), James Ross Island |
| title_full | The oldest elasmosaurs (Sauropterygia, Plesiosauria) from Antarctica, Santa Marta Formation (upper Coniacian? Santonian–upper Campanian) and Snow Hill Island Formation (upper Campanian–lower Maastrichtian), James Ross Island |
| title_fullStr | The oldest elasmosaurs (Sauropterygia, Plesiosauria) from Antarctica, Santa Marta Formation (upper Coniacian? Santonian–upper Campanian) and Snow Hill Island Formation (upper Campanian–lower Maastrichtian), James Ross Island |
| title_full_unstemmed | The oldest elasmosaurs (Sauropterygia, Plesiosauria) from Antarctica, Santa Marta Formation (upper Coniacian? Santonian–upper Campanian) and Snow Hill Island Formation (upper Campanian–lower Maastrichtian), James Ross Island |
| title_short | The oldest elasmosaurs (Sauropterygia, Plesiosauria) from Antarctica, Santa Marta Formation (upper Coniacian? Santonian–upper Campanian) and Snow Hill Island Formation (upper Campanian–lower Maastrichtian), James Ross Island |
| title_sort | oldest elasmosaurs sauropterygia plesiosauria from antarctica santa marta formation upper coniacian santonian upper campanian and snow hill island formation upper campanian lower maastrichtian james ross island |
| topic | Elasmosauridae Antarctica Late Cretaceous |
| url | http://www.polarresearch.net/index.php/polar/article/view/11090/pdf |
| work_keys_str_mv | AT josepogorman theoldestelasmosaurssauropterygiaplesiosauriafromantarcticasantamartaformationupperconiaciansantonianuppercampanianandsnowhillislandformationuppercampanianlowermaastrichtianjamesrossisland AT josepogorman oldestelasmosaurssauropterygiaplesiosauriafromantarcticasantamartaformationupperconiaciansantonianuppercampanianandsnowhillislandformationuppercampanianlowermaastrichtianjamesrossisland |