A new physeteroid from the late Miocene of Peru expands the diversity of extinct dwarf and pygmy sperm whales (Cetacea: Odontoceti: Kogiidae)
International audience Nowadays, the odontocete family Kogiidae is monotypic and only includes two species of diminutive relatives of the great sperm whale Physeter Linnaeus, 1758. Conversely, a growing body of extinct species indicates that kogiids were diverse and disparate during the late Neogene...
Published in: | Comptes Rendus Palevol |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | https://hal.science/hal-03424211 https://hal.science/hal-03424211/document https://hal.science/hal-03424211/file/206-2020%20collareta%20et%20al.pdf https://doi.org/10.5852/cr-palevol2020v19a5 |
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ftsorbonneuniv:oai:HAL:hal-03424211v1 2024-02-11T10:08:57+01:00 A new physeteroid from the late Miocene of Peru expands the diversity of extinct dwarf and pygmy sperm whales (Cetacea: Odontoceti: Kogiidae) Collareta, Alberto Lambert, Olivier de Muizon, Christian Benites Palomino, Aldo Marcelo Urbina, Mario Bianucci, Giovanni Centre de Recherche en Paléontologie - Paris (CR2P) Muséum national d'Histoire naturelle (MNHN)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) ANR-11-INBS-0004,E-RECOLNAT,Valorisation de 350 ans de collections d'histoire naturelle : une plateforme numérique(2011) 2020 https://hal.science/hal-03424211 https://hal.science/hal-03424211/document https://hal.science/hal-03424211/file/206-2020%20collareta%20et%20al.pdf https://doi.org/10.5852/cr-palevol2020v19a5 en eng HAL CCSD Académie des sciences (Paris) info:eu-repo/semantics/altIdentifier/doi/10.5852/cr-palevol2020v19a5 hal-03424211 https://hal.science/hal-03424211 https://hal.science/hal-03424211/document https://hal.science/hal-03424211/file/206-2020%20collareta%20et%20al.pdf doi:10.5852/cr-palevol2020v19a5 info:eu-repo/semantics/OpenAccess ISSN: 1631-0683 EISSN: 1777-571X Comptes Rendus. Palevol https://hal.science/hal-03424211 Comptes Rendus. Palevol, 2020, 5, ⟨10.5852/cr-palevol2020v19a5⟩ [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology info:eu-repo/semantics/article Journal articles 2020 ftsorbonneuniv https://doi.org/10.5852/cr-palevol2020v19a5 2024-01-23T23:46:08Z International audience Nowadays, the odontocete family Kogiidae is monotypic and only includes two species of diminutive relatives of the great sperm whale Physeter Linnaeus, 1758. Conversely, a growing body of extinct species indicates that kogiids were diverse and disparate during the late Neogene. The fossil record of Kogiidae is, to date, represented by several cranial specimens from Mio-Pliocene localities of the Northern Hemisphere, with the significant Southern Hemisphere exception of the Pisco Formation of Peru, from which two genera were known so far, including Scaphokogia Muizon, 1988, a highly idiosyncratic form characterised by a distinctly spoon-shaped dorsal surface of the neurocranium and a downturned semicylindrical rostrum, which is even placed in its own subfamily Scaphokogiinae. Here, we report on two skulls of Kogiidae from the Messinian (upper Miocene) portion of the Pisco Formation exposed in the East Pisco Basin. These two skulls are referred to the new taxon Platyscaphokogia landinii n. gen., n. sp., which our phylogenetic analysis recovers as sister group of Scaphokogia, within the subfamily Scaphokogiinae. Although Platyscaphokogia n. gen. shares with Scaphokogia a remarkably spoon-like dorsal aspect of the neurocranium, it retains a non-pachyostotic, dorsoventrally thin rostrum that distinctly points anteriorly; as such, Platyscaphokogia n. gen. might be regarded as testifying an early stage in the evolution of the scaphokogiine cranial anatomy. Morphofunctional and palaeoecological considerations allow for hypothesising that Platyscaphokogia n. gen. was a raptorial physeteroid that foraged along the water column in relatively open-sea palaeoenvironments. In conclusion, our finds expand the palaeodiversity of Kogiidae, as well as our knowledge on the late Miocene sperm whales of the southeastern Pacific, and further suggest that the fossil content of the East Pisco Basin is crucial for reconstructing the Neogene evolutionary history of physeteroids. Article in Journal/Newspaper Sperm whale HAL Sorbonne Université Pacific Pisco ENVELOPE(-62.450,-62.450,-62.950,-62.950) Comptes Rendus Palevol 5 |
institution |
Open Polar |
collection |
HAL Sorbonne Université |
op_collection_id |
ftsorbonneuniv |
language |
English |
topic |
[SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology |
spellingShingle |
[SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology Collareta, Alberto Lambert, Olivier de Muizon, Christian Benites Palomino, Aldo Marcelo Urbina, Mario Bianucci, Giovanni A new physeteroid from the late Miocene of Peru expands the diversity of extinct dwarf and pygmy sperm whales (Cetacea: Odontoceti: Kogiidae) |
topic_facet |
[SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology |
description |
International audience Nowadays, the odontocete family Kogiidae is monotypic and only includes two species of diminutive relatives of the great sperm whale Physeter Linnaeus, 1758. Conversely, a growing body of extinct species indicates that kogiids were diverse and disparate during the late Neogene. The fossil record of Kogiidae is, to date, represented by several cranial specimens from Mio-Pliocene localities of the Northern Hemisphere, with the significant Southern Hemisphere exception of the Pisco Formation of Peru, from which two genera were known so far, including Scaphokogia Muizon, 1988, a highly idiosyncratic form characterised by a distinctly spoon-shaped dorsal surface of the neurocranium and a downturned semicylindrical rostrum, which is even placed in its own subfamily Scaphokogiinae. Here, we report on two skulls of Kogiidae from the Messinian (upper Miocene) portion of the Pisco Formation exposed in the East Pisco Basin. These two skulls are referred to the new taxon Platyscaphokogia landinii n. gen., n. sp., which our phylogenetic analysis recovers as sister group of Scaphokogia, within the subfamily Scaphokogiinae. Although Platyscaphokogia n. gen. shares with Scaphokogia a remarkably spoon-like dorsal aspect of the neurocranium, it retains a non-pachyostotic, dorsoventrally thin rostrum that distinctly points anteriorly; as such, Platyscaphokogia n. gen. might be regarded as testifying an early stage in the evolution of the scaphokogiine cranial anatomy. Morphofunctional and palaeoecological considerations allow for hypothesising that Platyscaphokogia n. gen. was a raptorial physeteroid that foraged along the water column in relatively open-sea palaeoenvironments. In conclusion, our finds expand the palaeodiversity of Kogiidae, as well as our knowledge on the late Miocene sperm whales of the southeastern Pacific, and further suggest that the fossil content of the East Pisco Basin is crucial for reconstructing the Neogene evolutionary history of physeteroids. |
author2 |
Centre de Recherche en Paléontologie - Paris (CR2P) Muséum national d'Histoire naturelle (MNHN)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) ANR-11-INBS-0004,E-RECOLNAT,Valorisation de 350 ans de collections d'histoire naturelle : une plateforme numérique(2011) |
format |
Article in Journal/Newspaper |
author |
Collareta, Alberto Lambert, Olivier de Muizon, Christian Benites Palomino, Aldo Marcelo Urbina, Mario Bianucci, Giovanni |
author_facet |
Collareta, Alberto Lambert, Olivier de Muizon, Christian Benites Palomino, Aldo Marcelo Urbina, Mario Bianucci, Giovanni |
author_sort |
Collareta, Alberto |
title |
A new physeteroid from the late Miocene of Peru expands the diversity of extinct dwarf and pygmy sperm whales (Cetacea: Odontoceti: Kogiidae) |
title_short |
A new physeteroid from the late Miocene of Peru expands the diversity of extinct dwarf and pygmy sperm whales (Cetacea: Odontoceti: Kogiidae) |
title_full |
A new physeteroid from the late Miocene of Peru expands the diversity of extinct dwarf and pygmy sperm whales (Cetacea: Odontoceti: Kogiidae) |
title_fullStr |
A new physeteroid from the late Miocene of Peru expands the diversity of extinct dwarf and pygmy sperm whales (Cetacea: Odontoceti: Kogiidae) |
title_full_unstemmed |
A new physeteroid from the late Miocene of Peru expands the diversity of extinct dwarf and pygmy sperm whales (Cetacea: Odontoceti: Kogiidae) |
title_sort |
new physeteroid from the late miocene of peru expands the diversity of extinct dwarf and pygmy sperm whales (cetacea: odontoceti: kogiidae) |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.science/hal-03424211 https://hal.science/hal-03424211/document https://hal.science/hal-03424211/file/206-2020%20collareta%20et%20al.pdf https://doi.org/10.5852/cr-palevol2020v19a5 |
long_lat |
ENVELOPE(-62.450,-62.450,-62.950,-62.950) |
geographic |
Pacific Pisco |
geographic_facet |
Pacific Pisco |
genre |
Sperm whale |
genre_facet |
Sperm whale |
op_source |
ISSN: 1631-0683 EISSN: 1777-571X Comptes Rendus. Palevol https://hal.science/hal-03424211 Comptes Rendus. Palevol, 2020, 5, ⟨10.5852/cr-palevol2020v19a5⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5852/cr-palevol2020v19a5 hal-03424211 https://hal.science/hal-03424211 https://hal.science/hal-03424211/document https://hal.science/hal-03424211/file/206-2020%20collareta%20et%20al.pdf doi:10.5852/cr-palevol2020v19a5 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5852/cr-palevol2020v19a5 |
container_title |
Comptes Rendus Palevol |
container_issue |
5 |
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1790608602107478016 |