ARIMIDELPHIS SORBINII A NEW SMALL KILLER WHALE-LIKE DOLPHIN FROM THE PLIOCENE OF MARECCHIA RIVER (CENTRAL EASTERN ITALY) AND A PHYLOGENETIC ANALYSIS OF THE ORCININAE (CETACEA: ODONTOCETI)
Arimidelphis sorbinii is a new genus and a new species of Delphinidae (Cetacea, Odontoceti) based on an incomplete skull with right ear bones, mandible, teeth and left forelimb, all from one animal, from the Late Pliocene sediments of Marecchia river (Central Eastern Italy). This specimen had previo...
Main Author: | |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Milano University Press
2005
|
Subjects: | |
Online Access: | https://doi.org/10.13130/2039-4942/6324 https://doaj.org/article/f43b59bbbefe43d7b3bd56b09fe348d3 |
id |
ftdoajarticles:oai:doaj.org/article:f43b59bbbefe43d7b3bd56b09fe348d3 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:f43b59bbbefe43d7b3bd56b09fe348d3 2023-08-27T04:10:24+02:00 ARIMIDELPHIS SORBINII A NEW SMALL KILLER WHALE-LIKE DOLPHIN FROM THE PLIOCENE OF MARECCHIA RIVER (CENTRAL EASTERN ITALY) AND A PHYLOGENETIC ANALYSIS OF THE ORCININAE (CETACEA: ODONTOCETI) GIOVANNI BIANUCCI 2005-07-01T00:00:00Z https://doi.org/10.13130/2039-4942/6324 https://doaj.org/article/f43b59bbbefe43d7b3bd56b09fe348d3 EN eng Milano University Press https://riviste.unimi.it/index.php/RIPS/article/view/6324 https://doaj.org/toc/0035-6883 https://doaj.org/toc/2039-4942 0035-6883 2039-4942 doi:10.13130/2039-4942/6324 https://doaj.org/article/f43b59bbbefe43d7b3bd56b09fe348d3 Rivista Italiana di Paleontologia e Stratigrafia, Vol 111, Iss 2 (2005) Geology QE1-996.5 Paleontology QE701-760 article 2005 ftdoajarticles https://doi.org/10.13130/2039-4942/6324 2023-08-06T00:46:23Z Arimidelphis sorbinii is a new genus and a new species of Delphinidae (Cetacea, Odontoceti) based on an incomplete skull with right ear bones, mandible, teeth and left forelimb, all from one animal, from the Late Pliocene sediments of Marecchia river (Central Eastern Italy). This specimen had previously been wrongly referred to the fossil species Tursiops osennae. Arimidelphis shows some affinities with killer whale (Orcinus), as the short rostrum, the very strong preorbital process with circular lateral outline, and the very elevated coronoid crest of the mandible. A cladistic phylogenetic analysis points out the belonging of Arimidelphis to Orcininae and particularly to a clade also including the fossil genus Hemisyntrachelus, Orcinus and Pseudorca. The strong rostrum and mandible indicate a trophic adaptation similar to that of the last two genera. Other results of this cladistic analysis are the placement of Orcaella outside the Orcininae, and the position of Grampus near Globicephala, clearly inside the Orcininae. Tursiops and Delphinus (two genera of Delphininae) appear strongly distinct from Orcininae. This new genus confirms the high radiation of delphinids in the Pliocene of the Mediterranean, probably related to the recolonization of this basin after the Messinian salinity crisis. SHORT NOTE Article in Journal/Newspaper Killer Whale Killer whale Directory of Open Access Journals: DOAJ Articles |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geology QE1-996.5 Paleontology QE701-760 |
spellingShingle |
Geology QE1-996.5 Paleontology QE701-760 GIOVANNI BIANUCCI ARIMIDELPHIS SORBINII A NEW SMALL KILLER WHALE-LIKE DOLPHIN FROM THE PLIOCENE OF MARECCHIA RIVER (CENTRAL EASTERN ITALY) AND A PHYLOGENETIC ANALYSIS OF THE ORCININAE (CETACEA: ODONTOCETI) |
topic_facet |
Geology QE1-996.5 Paleontology QE701-760 |
description |
Arimidelphis sorbinii is a new genus and a new species of Delphinidae (Cetacea, Odontoceti) based on an incomplete skull with right ear bones, mandible, teeth and left forelimb, all from one animal, from the Late Pliocene sediments of Marecchia river (Central Eastern Italy). This specimen had previously been wrongly referred to the fossil species Tursiops osennae. Arimidelphis shows some affinities with killer whale (Orcinus), as the short rostrum, the very strong preorbital process with circular lateral outline, and the very elevated coronoid crest of the mandible. A cladistic phylogenetic analysis points out the belonging of Arimidelphis to Orcininae and particularly to a clade also including the fossil genus Hemisyntrachelus, Orcinus and Pseudorca. The strong rostrum and mandible indicate a trophic adaptation similar to that of the last two genera. Other results of this cladistic analysis are the placement of Orcaella outside the Orcininae, and the position of Grampus near Globicephala, clearly inside the Orcininae. Tursiops and Delphinus (two genera of Delphininae) appear strongly distinct from Orcininae. This new genus confirms the high radiation of delphinids in the Pliocene of the Mediterranean, probably related to the recolonization of this basin after the Messinian salinity crisis. SHORT NOTE |
format |
Article in Journal/Newspaper |
author |
GIOVANNI BIANUCCI |
author_facet |
GIOVANNI BIANUCCI |
author_sort |
GIOVANNI BIANUCCI |
title |
ARIMIDELPHIS SORBINII A NEW SMALL KILLER WHALE-LIKE DOLPHIN FROM THE PLIOCENE OF MARECCHIA RIVER (CENTRAL EASTERN ITALY) AND A PHYLOGENETIC ANALYSIS OF THE ORCININAE (CETACEA: ODONTOCETI) |
title_short |
ARIMIDELPHIS SORBINII A NEW SMALL KILLER WHALE-LIKE DOLPHIN FROM THE PLIOCENE OF MARECCHIA RIVER (CENTRAL EASTERN ITALY) AND A PHYLOGENETIC ANALYSIS OF THE ORCININAE (CETACEA: ODONTOCETI) |
title_full |
ARIMIDELPHIS SORBINII A NEW SMALL KILLER WHALE-LIKE DOLPHIN FROM THE PLIOCENE OF MARECCHIA RIVER (CENTRAL EASTERN ITALY) AND A PHYLOGENETIC ANALYSIS OF THE ORCININAE (CETACEA: ODONTOCETI) |
title_fullStr |
ARIMIDELPHIS SORBINII A NEW SMALL KILLER WHALE-LIKE DOLPHIN FROM THE PLIOCENE OF MARECCHIA RIVER (CENTRAL EASTERN ITALY) AND A PHYLOGENETIC ANALYSIS OF THE ORCININAE (CETACEA: ODONTOCETI) |
title_full_unstemmed |
ARIMIDELPHIS SORBINII A NEW SMALL KILLER WHALE-LIKE DOLPHIN FROM THE PLIOCENE OF MARECCHIA RIVER (CENTRAL EASTERN ITALY) AND A PHYLOGENETIC ANALYSIS OF THE ORCININAE (CETACEA: ODONTOCETI) |
title_sort |
arimidelphis sorbinii a new small killer whale-like dolphin from the pliocene of marecchia river (central eastern italy) and a phylogenetic analysis of the orcininae (cetacea: odontoceti) |
publisher |
Milano University Press |
publishDate |
2005 |
url |
https://doi.org/10.13130/2039-4942/6324 https://doaj.org/article/f43b59bbbefe43d7b3bd56b09fe348d3 |
genre |
Killer Whale Killer whale |
genre_facet |
Killer Whale Killer whale |
op_source |
Rivista Italiana di Paleontologia e Stratigrafia, Vol 111, Iss 2 (2005) |
op_relation |
https://riviste.unimi.it/index.php/RIPS/article/view/6324 https://doaj.org/toc/0035-6883 https://doaj.org/toc/2039-4942 0035-6883 2039-4942 doi:10.13130/2039-4942/6324 https://doaj.org/article/f43b59bbbefe43d7b3bd56b09fe348d3 |
op_doi |
https://doi.org/10.13130/2039-4942/6324 |
_version_ |
1775352397621624832 |