SPECIES OF THE GENUS MELICERITA MILNE EDWARDS (BRYOZOA, CHEILOSTOMATIDA) IN THE EARLY MIOCENE OF PATAGONIA (ARGENTINA)
Species of the cellariid genus Melicerita Milne Edwards develop bilaminar flattened colonies consisting of alternate transverse rows of hexagonal zooids. In South America, its stratigraphic range extends from the early Miocene to the Recent. Re-examination of the type material of M. triforis Ortman...
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| Format: | Article |
| Language: | English |
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Asociación Paleontológica Argentina
2023-03-01
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| Series: | Publicación Electrónica de la Asociación Paleontológica Argentina |
| Subjects: | |
| Online Access: | https://www.peapaleontologica.org.ar/index.php/peapa/article/view/448 |
| _version_ | 1797852527395340288 |
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| author | Juan López Gappa Leandro Martín Perez |
| author_facet | Juan López Gappa Leandro Martín Perez |
| author_sort | Juan López Gappa |
| collection | DOAJ |
| description |
Species of the cellariid genus Melicerita Milne Edwards develop bilaminar flattened colonies consisting of alternate transverse rows of hexagonal zooids. In South America, its stratigraphic range extends from the early Miocene to the Recent. Re-examination of the type material of M. triforis Ortmann from the Monte León Formation at Río Chalía, and scanning electron microscope images of M. ortmanni Canu from the early Miocene Chenque Formation, confirmed that the latter is a junior synonym of M. triforis. Vicarious avicularia are described for the first time in M. triforis. Lectotypes are herein chosen for both nominal species. M. imperforata sp. nov. is described from material obtained in Monte León Formation (early Miocene). It differs from all known Melicerita species in the size and shape of its vicarious avicularia, which are marginal and much larger than the autozooids. The Recent Magellanic species M. temaukeli Moyano and M. blancoae López Gappa share morphological similarities with M. triforis.
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| first_indexed | 2024-04-09T19:35:49Z |
| format | Article |
| id | doaj.art-a05c85d5b7de46a48b44b3514752b702 |
| institution | Directory Open Access Journal |
| issn | 2469-0228 |
| language | English |
| last_indexed | 2024-04-09T19:35:49Z |
| publishDate | 2023-03-01 |
| publisher | Asociación Paleontológica Argentina |
| record_format | Article |
| series | Publicación Electrónica de la Asociación Paleontológica Argentina |
| spelling | doaj.art-a05c85d5b7de46a48b44b3514752b7022023-04-04T12:11:26ZengAsociación Paleontológica ArgentinaPublicación Electrónica de la Asociación Paleontológica Argentina2469-02282023-03-0123110.5710/PEAPA.15.02.2023.448SPECIES OF THE GENUS MELICERITA MILNE EDWARDS (BRYOZOA, CHEILOSTOMATIDA) IN THE EARLY MIOCENE OF PATAGONIA (ARGENTINA)Juan López Gappa0Leandro Martín Perez1CONICET - MACN, ArgentinaCONICET - MLP, Argentina Species of the cellariid genus Melicerita Milne Edwards develop bilaminar flattened colonies consisting of alternate transverse rows of hexagonal zooids. In South America, its stratigraphic range extends from the early Miocene to the Recent. Re-examination of the type material of M. triforis Ortmann from the Monte León Formation at Río Chalía, and scanning electron microscope images of M. ortmanni Canu from the early Miocene Chenque Formation, confirmed that the latter is a junior synonym of M. triforis. Vicarious avicularia are described for the first time in M. triforis. Lectotypes are herein chosen for both nominal species. M. imperforata sp. nov. is described from material obtained in Monte León Formation (early Miocene). It differs from all known Melicerita species in the size and shape of its vicarious avicularia, which are marginal and much larger than the autozooids. The Recent Magellanic species M. temaukeli Moyano and M. blancoae López Gappa share morphological similarities with M. triforis. https://www.peapaleontologica.org.ar/index.php/peapa/article/view/448CellariidaeMonte León FormationChenque FormationArgentina |
| spellingShingle | Juan López Gappa Leandro Martín Perez SPECIES OF THE GENUS MELICERITA MILNE EDWARDS (BRYOZOA, CHEILOSTOMATIDA) IN THE EARLY MIOCENE OF PATAGONIA (ARGENTINA) Publicación Electrónica de la Asociación Paleontológica Argentina Cellariidae Monte León Formation Chenque Formation Argentina |
| title | SPECIES OF THE GENUS MELICERITA MILNE EDWARDS (BRYOZOA, CHEILOSTOMATIDA) IN THE EARLY MIOCENE OF PATAGONIA (ARGENTINA) |
| title_full | SPECIES OF THE GENUS MELICERITA MILNE EDWARDS (BRYOZOA, CHEILOSTOMATIDA) IN THE EARLY MIOCENE OF PATAGONIA (ARGENTINA) |
| title_fullStr | SPECIES OF THE GENUS MELICERITA MILNE EDWARDS (BRYOZOA, CHEILOSTOMATIDA) IN THE EARLY MIOCENE OF PATAGONIA (ARGENTINA) |
| title_full_unstemmed | SPECIES OF THE GENUS MELICERITA MILNE EDWARDS (BRYOZOA, CHEILOSTOMATIDA) IN THE EARLY MIOCENE OF PATAGONIA (ARGENTINA) |
| title_short | SPECIES OF THE GENUS MELICERITA MILNE EDWARDS (BRYOZOA, CHEILOSTOMATIDA) IN THE EARLY MIOCENE OF PATAGONIA (ARGENTINA) |
| title_sort | species of the genus melicerita milne edwards bryozoa cheilostomatida in the early miocene of patagonia argentina |
| topic | Cellariidae Monte León Formation Chenque Formation Argentina |
| url | https://www.peapaleontologica.org.ar/index.php/peapa/article/view/448 |
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