Data from: Endocranial anatomy of a new fossil porpoise (Odontoceti: Phocoenidae) from the Pliocene San Diego Formation of California ...
The Pliocene fossil porpoise SDSNH 65276 has extremely elongate mandibular morphology, unlike that of any marine amniote, and is superficially most similar to the living bird species known as skimmers (Rynchops sp.). Endocasts of the pterygoid sinuses and endocranial cavity were digitally segmented...
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ftdatacite:10.5061/dryad.vj969 2024-10-13T14:10:18+00:00 Data from: Endocranial anatomy of a new fossil porpoise (Odontoceti: Phocoenidae) from the Pliocene San Diego Formation of California ... Racicot, Rachel A. Rowe, Timothy 2014 https://dx.doi.org/10.5061/dryad.vj969 https://datadryad.org/stash/dataset/doi:10.5061/dryad.vj969 en eng Dryad https://dx.doi.org/10.1666/13-109 Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 endocast Sinus pterygoid sinus Semirostrum ceruttii pterygoid Dataset dataset 2014 ftdatacite https://doi.org/10.5061/dryad.vj96910.1666/13-109 2024-10-01T11:13:55Z The Pliocene fossil porpoise SDSNH 65276 has extremely elongate mandibular morphology, unlike that of any marine amniote, and is superficially most similar to the living bird species known as skimmers (Rynchops sp.). Endocasts of the pterygoid sinuses and endocranial cavity were digitally segmented from high-resolution X-ray CT scans of the specimen to explore internal anatomy of functionally and phylogenetically important anatomical features of this specimen and odontocetes in general. The sinuses are similar in volume and shape to extant porpoise species, but the dorsal extension of the preorbital lobes are particularly elongate as in the harbor porpoise (Phocoena phocoena). The cranial endocast also shows similarities with extant porpoises, but has much deeper interhemispheric fissures, which are filled by ossified meninges, particularly a deep falx cerebri and shallower tentorium cerebelli. Ossifications of these parts of the meninges may reflect faster angular accelerations of the head, deeper diving ... : Supplemental Data 2Three-dimensional PDF of digitally extracted right pterygoid sinus of the extinct porpoise Semirostrum ceruttii, SDSNH 65276.SUPPLEMENTARY FIGURE 1.pdfSupplemental Data 3Three-dimensional PDF of digitally extracted left pterygoid sinus of the extinct porpoise Semirostrum ceruttii, SDSNH 65276.SUPPLEMENTARY FIGURE 2.pdfSupplemental Data 4Three-dimensional pdf of digitally extracted whole cranial endocast of the extinct porpoise Semirostrum ceruttii, SDSNH 65276.SUPPLEMENTARY FIGURE 3.pdfSupplemental Data 1Measurements of the pterygoid sinuses of the extinct porpoise Semirostrum ceruttii, SDSNH 65276, in mm unless otherwise indicated.Supplementary Table 1.docx ... Dataset Phocoena phocoena DataCite |
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collection |
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op_collection_id |
ftdatacite |
language |
English |
topic |
endocast Sinus pterygoid sinus Semirostrum ceruttii pterygoid |
spellingShingle |
endocast Sinus pterygoid sinus Semirostrum ceruttii pterygoid Racicot, Rachel A. Rowe, Timothy Data from: Endocranial anatomy of a new fossil porpoise (Odontoceti: Phocoenidae) from the Pliocene San Diego Formation of California ... |
topic_facet |
endocast Sinus pterygoid sinus Semirostrum ceruttii pterygoid |
description |
The Pliocene fossil porpoise SDSNH 65276 has extremely elongate mandibular morphology, unlike that of any marine amniote, and is superficially most similar to the living bird species known as skimmers (Rynchops sp.). Endocasts of the pterygoid sinuses and endocranial cavity were digitally segmented from high-resolution X-ray CT scans of the specimen to explore internal anatomy of functionally and phylogenetically important anatomical features of this specimen and odontocetes in general. The sinuses are similar in volume and shape to extant porpoise species, but the dorsal extension of the preorbital lobes are particularly elongate as in the harbor porpoise (Phocoena phocoena). The cranial endocast also shows similarities with extant porpoises, but has much deeper interhemispheric fissures, which are filled by ossified meninges, particularly a deep falx cerebri and shallower tentorium cerebelli. Ossifications of these parts of the meninges may reflect faster angular accelerations of the head, deeper diving ... : Supplemental Data 2Three-dimensional PDF of digitally extracted right pterygoid sinus of the extinct porpoise Semirostrum ceruttii, SDSNH 65276.SUPPLEMENTARY FIGURE 1.pdfSupplemental Data 3Three-dimensional PDF of digitally extracted left pterygoid sinus of the extinct porpoise Semirostrum ceruttii, SDSNH 65276.SUPPLEMENTARY FIGURE 2.pdfSupplemental Data 4Three-dimensional pdf of digitally extracted whole cranial endocast of the extinct porpoise Semirostrum ceruttii, SDSNH 65276.SUPPLEMENTARY FIGURE 3.pdfSupplemental Data 1Measurements of the pterygoid sinuses of the extinct porpoise Semirostrum ceruttii, SDSNH 65276, in mm unless otherwise indicated.Supplementary Table 1.docx ... |
format |
Dataset |
author |
Racicot, Rachel A. Rowe, Timothy |
author_facet |
Racicot, Rachel A. Rowe, Timothy |
author_sort |
Racicot, Rachel A. |
title |
Data from: Endocranial anatomy of a new fossil porpoise (Odontoceti: Phocoenidae) from the Pliocene San Diego Formation of California ... |
title_short |
Data from: Endocranial anatomy of a new fossil porpoise (Odontoceti: Phocoenidae) from the Pliocene San Diego Formation of California ... |
title_full |
Data from: Endocranial anatomy of a new fossil porpoise (Odontoceti: Phocoenidae) from the Pliocene San Diego Formation of California ... |
title_fullStr |
Data from: Endocranial anatomy of a new fossil porpoise (Odontoceti: Phocoenidae) from the Pliocene San Diego Formation of California ... |
title_full_unstemmed |
Data from: Endocranial anatomy of a new fossil porpoise (Odontoceti: Phocoenidae) from the Pliocene San Diego Formation of California ... |
title_sort |
data from: endocranial anatomy of a new fossil porpoise (odontoceti: phocoenidae) from the pliocene san diego formation of california ... |
publisher |
Dryad |
publishDate |
2014 |
url |
https://dx.doi.org/10.5061/dryad.vj969 https://datadryad.org/stash/dataset/doi:10.5061/dryad.vj969 |
genre |
Phocoena phocoena |
genre_facet |
Phocoena phocoena |
op_relation |
https://dx.doi.org/10.1666/13-109 |
op_rights |
Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 |
op_doi |
https://doi.org/10.5061/dryad.vj96910.1666/13-109 |
_version_ |
1812817510118981632 |