A NEW SPECIES OF CYRTOSPIRIFER (BRACHIOPODA) FROM THE MIDDLE DEVONIAN OF THE WESTERN SAHARA (NORTHWESTERN AFRICA)
A new species of Cyrtospirifer is described from the Middle to Upper Givetian of the Western Sahara (Northwest Africa). Cyrtospirifer tindoufensis new species differs in its smaller number and coarser medial and flank plications and equibiconvex shell profile from the other Givetian species of Cyrto...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Milano University Press
2011-03-01
|
| Series: | Rivista Italiana di Paleontologia e Stratigrafia |
| Subjects: | |
| Online Access: | https://riviste.unimi.it/index.php/RIPS/article/view/5959 |
| _version_ | 1797720837821825024 |
|---|---|
| author | MENA SCHEMM-GREGORY |
| author_facet | MENA SCHEMM-GREGORY |
| author_sort | MENA SCHEMM-GREGORY |
| collection | DOAJ |
| description | A new species of Cyrtospirifer is described from the Middle to Upper Givetian of the Western Sahara (Northwest Africa). Cyrtospirifer tindoufensis new species differs in its smaller number and coarser medial and flank plications and equibiconvex shell profile from the other Givetian species of Cyrtospirifer that all occur in Europe and to which the new species probably gives rise. The new implications of the proposed phylogeny of the earliest cyrtospiriferids and their origin from the Western Sahara are discussed. The palaeogeographic distribution of the cyrtospiriferids during the Givetian and Frasnian is shown and its migration ways are described considering the global transgression and regression cycles. |
| first_indexed | 2024-03-12T09:25:21Z |
| format | Article |
| id | doaj.art-7512e1a81fee4c41a748bd5a7541a561 |
| institution | Directory Open Access Journal |
| issn | 0035-6883 2039-4942 |
| language | English |
| last_indexed | 2024-03-12T09:25:21Z |
| publishDate | 2011-03-01 |
| publisher | Milano University Press |
| record_format | Article |
| series | Rivista Italiana di Paleontologia e Stratigrafia |
| spelling | doaj.art-7512e1a81fee4c41a748bd5a7541a5612023-09-02T14:16:46ZengMilano University PressRivista Italiana di Paleontologia e Stratigrafia0035-68832039-49422011-03-01117110.13130/2039-4942/59595274A NEW SPECIES OF CYRTOSPIRIFER (BRACHIOPODA) FROM THE MIDDLE DEVONIAN OF THE WESTERN SAHARA (NORTHWESTERN AFRICA)MENA SCHEMM-GREGORYA new species of Cyrtospirifer is described from the Middle to Upper Givetian of the Western Sahara (Northwest Africa). Cyrtospirifer tindoufensis new species differs in its smaller number and coarser medial and flank plications and equibiconvex shell profile from the other Givetian species of Cyrtospirifer that all occur in Europe and to which the new species probably gives rise. The new implications of the proposed phylogeny of the earliest cyrtospiriferids and their origin from the Western Sahara are discussed. The palaeogeographic distribution of the cyrtospiriferids during the Givetian and Frasnian is shown and its migration ways are described considering the global transgression and regression cycles.https://riviste.unimi.it/index.php/RIPS/article/view/5959CyrtospiriferBrachiopodaPhylogenyPalaeobiogeographyGivetianDevonianWestern Sahara |
| spellingShingle | MENA SCHEMM-GREGORY A NEW SPECIES OF CYRTOSPIRIFER (BRACHIOPODA) FROM THE MIDDLE DEVONIAN OF THE WESTERN SAHARA (NORTHWESTERN AFRICA) Rivista Italiana di Paleontologia e Stratigrafia Cyrtospirifer Brachiopoda Phylogeny Palaeobiogeography Givetian Devonian Western Sahara |
| title | A NEW SPECIES OF CYRTOSPIRIFER (BRACHIOPODA) FROM THE MIDDLE DEVONIAN OF THE WESTERN SAHARA (NORTHWESTERN AFRICA) |
| title_full | A NEW SPECIES OF CYRTOSPIRIFER (BRACHIOPODA) FROM THE MIDDLE DEVONIAN OF THE WESTERN SAHARA (NORTHWESTERN AFRICA) |
| title_fullStr | A NEW SPECIES OF CYRTOSPIRIFER (BRACHIOPODA) FROM THE MIDDLE DEVONIAN OF THE WESTERN SAHARA (NORTHWESTERN AFRICA) |
| title_full_unstemmed | A NEW SPECIES OF CYRTOSPIRIFER (BRACHIOPODA) FROM THE MIDDLE DEVONIAN OF THE WESTERN SAHARA (NORTHWESTERN AFRICA) |
| title_short | A NEW SPECIES OF CYRTOSPIRIFER (BRACHIOPODA) FROM THE MIDDLE DEVONIAN OF THE WESTERN SAHARA (NORTHWESTERN AFRICA) |
| title_sort | new species of cyrtospirifer brachiopoda from the middle devonian of the western sahara northwestern africa |
| topic | Cyrtospirifer Brachiopoda Phylogeny Palaeobiogeography Givetian Devonian Western Sahara |
| url | https://riviste.unimi.it/index.php/RIPS/article/view/5959 |
| work_keys_str_mv | AT menaschemmgregory anewspeciesofcyrtospiriferbrachiopodafromthemiddledevonianofthewesternsaharanorthwesternafrica AT menaschemmgregory newspeciesofcyrtospiriferbrachiopodafromthemiddledevonianofthewesternsaharanorthwesternafrica |