Morphology and ontogeny of some Middle Ordovician gonambonitid brachiopods from Baltoscandia
The Volkhovian–Kunda boundary deposits of the Leningrad Region contain two closely related genera, Antigonambonites and Anchigonites. The latter genus was previously known only by valve moulds; here its shell exterior and interior, and ontogeny are described in detail based on the collection of well...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Institute of Paleobiology PAS
2018-09-01
|
| Series: | Acta Palaeontologica Polonica |
| Subjects: | |
| Online Access: | http://www.app.pan.pl/archive/published/app63/app0048832018.pdf |
| _version_ | 1828187300299800576 |
|---|---|
| author | Anna A. Madison |
| author_facet | Anna A. Madison |
| author_sort | Anna A. Madison |
| collection | DOAJ |
| description | The Volkhovian–Kunda boundary deposits of the Leningrad Region contain two closely related genera, Antigonambonites and Anchigonites. The latter genus was previously known only by valve moulds; here its shell exterior and interior, and ontogeny are described in detail based on the collection of well-preserved disarticulated valves of Anchigonites conulus. Antigonambonites and Anchigonites share similar developmental and morphological features, and ecological strategies including the attachment by cementation by a “pedicle tube” and are thus possibly phylogenetically related. A new diagnosis for the genus Anchigonites and description of A. conulus are provided; other species of Anchigonites are briefly revised. The moulds of outer epithelial cells are described for the first time for the class Strophomenata. |
| first_indexed | 2024-04-12T07:33:48Z |
| format | Article |
| id | doaj.art-80c4a59b569d4ae6a6d5292f4621c4c4 |
| institution | Directory Open Access Journal |
| issn | 0567-7920 1732-2421 |
| language | English |
| last_indexed | 2024-04-12T07:33:48Z |
| publishDate | 2018-09-01 |
| publisher | Institute of Paleobiology PAS |
| record_format | Article |
| series | Acta Palaeontologica Polonica |
| spelling | doaj.art-80c4a59b569d4ae6a6d5292f4621c4c42022-12-22T03:42:00ZengInstitute of Paleobiology PASActa Palaeontologica Polonica0567-79201732-24212018-09-0163358559410.4202/app.00488.2018Morphology and ontogeny of some Middle Ordovician gonambonitid brachiopods from BaltoscandiaAnna A. Madison0Borissiak Paleontological Institute of Russian Academy of Sciences, 123, Profsoyuznaya ul., Moscow, 117997 Russia.The Volkhovian–Kunda boundary deposits of the Leningrad Region contain two closely related genera, Antigonambonites and Anchigonites. The latter genus was previously known only by valve moulds; here its shell exterior and interior, and ontogeny are described in detail based on the collection of well-preserved disarticulated valves of Anchigonites conulus. Antigonambonites and Anchigonites share similar developmental and morphological features, and ecological strategies including the attachment by cementation by a “pedicle tube” and are thus possibly phylogenetically related. A new diagnosis for the genus Anchigonites and description of A. conulus are provided; other species of Anchigonites are briefly revised. The moulds of outer epithelial cells are described for the first time for the class Strophomenata.http://www.app.pan.pl/archive/published/app63/app0048832018.pdfBrachiopodaGonambonitidaemorphologyontogenyOrdovicianRussia |
| spellingShingle | Anna A. Madison Morphology and ontogeny of some Middle Ordovician gonambonitid brachiopods from Baltoscandia Acta Palaeontologica Polonica Brachiopoda Gonambonitidae morphology ontogeny Ordovician Russia |
| title | Morphology and ontogeny of some Middle Ordovician gonambonitid brachiopods from Baltoscandia |
| title_full | Morphology and ontogeny of some Middle Ordovician gonambonitid brachiopods from Baltoscandia |
| title_fullStr | Morphology and ontogeny of some Middle Ordovician gonambonitid brachiopods from Baltoscandia |
| title_full_unstemmed | Morphology and ontogeny of some Middle Ordovician gonambonitid brachiopods from Baltoscandia |
| title_short | Morphology and ontogeny of some Middle Ordovician gonambonitid brachiopods from Baltoscandia |
| title_sort | morphology and ontogeny of some middle ordovician gonambonitid brachiopods from baltoscandia |
| topic | Brachiopoda Gonambonitidae morphology ontogeny Ordovician Russia |
| url | http://www.app.pan.pl/archive/published/app63/app0048832018.pdf |
| work_keys_str_mv | AT annaamadison morphologyandontogenyofsomemiddleordoviciangonambonitidbrachiopodsfrombaltoscandia |