REDESCRIPTION OF ‘PERLEIDUS’ (OSTEICHTHYES, ACTINOPTERYGII) FROM THE EARLY TRIASSIC OF NORTHWESTERN MADAGASCAR
The revision of the material from the Lower Triassic fossil-bearing-nodule levels from northwestern Madagascar supports the assumption that the genus Perleidus De Alessandri, 1910 is not present in the Early Triassic. In the past, the presence of this genus has been reported in the Early Triassic of...
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ftunivmilriv:oai:ojs.riviste.unimi.it:article/8328 2023-05-15T16:29:11+02:00 REDESCRIPTION OF ‘PERLEIDUS’ (OSTEICHTHYES, ACTINOPTERYGII) FROM THE EARLY TRIASSIC OF NORTHWESTERN MADAGASCAR MARRAMÀ, GIUSEPPE LOMBARDO, CRISTINA TINTORI, ANDREA CARNEVALE, GIORGIO 2017-04-13 application/pdf https://riviste.unimi.it/index.php/RIPS/article/view/8328 https://doi.org/10.13130/2039-4942/8328 eng eng Università degli Studi di Milano https://riviste.unimi.it/index.php/RIPS/article/view/8328/7939 https://riviste.unimi.it/index.php/RIPS/article/view/8328/11423 https://riviste.unimi.it/index.php/RIPS/article/view/8328 doi:10.13130/2039-4942/8328 Copyright (c) 2017 GIUSEPPE MARRAMÀ, CRISTINA LOMBARDO, ANDREA TINTORI, GIORGIO CARNEVALE RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA Vol. 123 No. 2 (2017) Rivista italiana di Paleontologia e Stratigrafia; V. 123 N. 2 (2017) 2039-4942 0035-6883 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2017 ftunivmilriv https://doi.org/10.13130/2039-4942/8328 2022-02-21T07:13:19Z The revision of the material from the Lower Triassic fossil-bearing-nodule levels from northwestern Madagascar supports the assumption that the genus Perleidus De Alessandri, 1910 is not present in the Early Triassic. In the past, the presence of this genus has been reported in the Early Triassic of Angola, Canada, China, Greenland, Madagascar and Spitsbergen. More recently, it has been pointed out that these taxa may not be ascribed to Perleidus owing to several anatomical differences. The morphometric, meristic and morphological analyses revealed a remarkable ontogenetic and individual intraspecific variation among dozens of specimens from the lower Triassic of Ankitokazo basin, northwestern Madagascar and allowed to consider the two Malagasyan species P. madagascariensis Piveteau, 1934, and P. piveteaui Lehman, 1952, as a single one and to ascribe it to the new genus Teffichthys. This new genus exhibits a unique combination of features, mainly in the skull dermal bone pattern and structure of caudal fin, that clearly support its exclusion from Perleidiformes. We also suggest to extend the use of Teffichthys for the other Early Triassic ‘Perleidus’ species except those from southern China. Article in Journal/Newspaper Greenland Spitsbergen University of Milan: Riviste UNIMI Canada Greenland Alessandri ENVELOPE(-55.517,-55.517,-63.183,-63.183) |
institution |
Open Polar |
collection |
University of Milan: Riviste UNIMI |
op_collection_id |
ftunivmilriv |
language |
English |
description |
The revision of the material from the Lower Triassic fossil-bearing-nodule levels from northwestern Madagascar supports the assumption that the genus Perleidus De Alessandri, 1910 is not present in the Early Triassic. In the past, the presence of this genus has been reported in the Early Triassic of Angola, Canada, China, Greenland, Madagascar and Spitsbergen. More recently, it has been pointed out that these taxa may not be ascribed to Perleidus owing to several anatomical differences. The morphometric, meristic and morphological analyses revealed a remarkable ontogenetic and individual intraspecific variation among dozens of specimens from the lower Triassic of Ankitokazo basin, northwestern Madagascar and allowed to consider the two Malagasyan species P. madagascariensis Piveteau, 1934, and P. piveteaui Lehman, 1952, as a single one and to ascribe it to the new genus Teffichthys. This new genus exhibits a unique combination of features, mainly in the skull dermal bone pattern and structure of caudal fin, that clearly support its exclusion from Perleidiformes. We also suggest to extend the use of Teffichthys for the other Early Triassic ‘Perleidus’ species except those from southern China. |
format |
Article in Journal/Newspaper |
author |
MARRAMÀ, GIUSEPPE LOMBARDO, CRISTINA TINTORI, ANDREA CARNEVALE, GIORGIO |
spellingShingle |
MARRAMÀ, GIUSEPPE LOMBARDO, CRISTINA TINTORI, ANDREA CARNEVALE, GIORGIO REDESCRIPTION OF ‘PERLEIDUS’ (OSTEICHTHYES, ACTINOPTERYGII) FROM THE EARLY TRIASSIC OF NORTHWESTERN MADAGASCAR |
author_facet |
MARRAMÀ, GIUSEPPE LOMBARDO, CRISTINA TINTORI, ANDREA CARNEVALE, GIORGIO |
author_sort |
MARRAMÀ, GIUSEPPE |
title |
REDESCRIPTION OF ‘PERLEIDUS’ (OSTEICHTHYES, ACTINOPTERYGII) FROM THE EARLY TRIASSIC OF NORTHWESTERN MADAGASCAR |
title_short |
REDESCRIPTION OF ‘PERLEIDUS’ (OSTEICHTHYES, ACTINOPTERYGII) FROM THE EARLY TRIASSIC OF NORTHWESTERN MADAGASCAR |
title_full |
REDESCRIPTION OF ‘PERLEIDUS’ (OSTEICHTHYES, ACTINOPTERYGII) FROM THE EARLY TRIASSIC OF NORTHWESTERN MADAGASCAR |
title_fullStr |
REDESCRIPTION OF ‘PERLEIDUS’ (OSTEICHTHYES, ACTINOPTERYGII) FROM THE EARLY TRIASSIC OF NORTHWESTERN MADAGASCAR |
title_full_unstemmed |
REDESCRIPTION OF ‘PERLEIDUS’ (OSTEICHTHYES, ACTINOPTERYGII) FROM THE EARLY TRIASSIC OF NORTHWESTERN MADAGASCAR |
title_sort |
redescription of ‘perleidus’ (osteichthyes, actinopterygii) from the early triassic of northwestern madagascar |
publisher |
Università degli Studi di Milano |
publishDate |
2017 |
url |
https://riviste.unimi.it/index.php/RIPS/article/view/8328 https://doi.org/10.13130/2039-4942/8328 |
long_lat |
ENVELOPE(-55.517,-55.517,-63.183,-63.183) |
geographic |
Canada Greenland Alessandri |
geographic_facet |
Canada Greenland Alessandri |
genre |
Greenland Spitsbergen |
genre_facet |
Greenland Spitsbergen |
op_source |
RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA Vol. 123 No. 2 (2017) Rivista italiana di Paleontologia e Stratigrafia; V. 123 N. 2 (2017) 2039-4942 0035-6883 |
op_relation |
https://riviste.unimi.it/index.php/RIPS/article/view/8328/7939 https://riviste.unimi.it/index.php/RIPS/article/view/8328/11423 https://riviste.unimi.it/index.php/RIPS/article/view/8328 doi:10.13130/2039-4942/8328 |
op_rights |
Copyright (c) 2017 GIUSEPPE MARRAMÀ, CRISTINA LOMBARDO, ANDREA TINTORI, GIORGIO CARNEVALE |
op_doi |
https://doi.org/10.13130/2039-4942/8328 |
_version_ |
1766018874859323392 |