Change in diversity, ecological significance and biogeographical relationships of the Mediterranean Miocene toothed whale fauna
The main evolutionary trend in the Mediterranean Miocene toothed whale fauna is related (1) to the change in diversity and (2) to the turnover in community structure. Diversity increases from Upper Aquitanian-Lower Burdigalian to Burdigalian-Langhian, when it reaches its maximum. Starting from this...
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ftunivpisairis:oai:arpi.unipi.it:11568/71987 2024-04-21T08:07:36+00:00 Change in diversity, ecological significance and biogeographical relationships of the Mediterranean Miocene toothed whale fauna BIANUCCI, GIOVANNI LANDINI, WALTER Bianucci, Giovanni Landini, Walter 2002 STAMPA http://hdl.handle.net/11568/71987 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000208619900002 volume:35 (Suppl.) firstpage:19 lastpage:28 numberofpages:10 journal:GEOBIOS http://hdl.handle.net/11568/71987 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0036978430 Cetacea Odontoceti Mediterranean miocene info:eu-repo/semantics/article 2002 ftunivpisairis 2024-03-28T01:41:17Z The main evolutionary trend in the Mediterranean Miocene toothed whale fauna is related (1) to the change in diversity and (2) to the turnover in community structure. Diversity increases from Upper Aquitanian-Lower Burdigalian to Burdigalian-Langhian, when it reaches its maximum. Starting from this time, diversity decreases progressively. The Early Miocene (Upper Aquitanian-Lower Burdigalian) Mediterranean toothed whale fauna, as well as the extramediterranean ones, is characterised by a high number of endemic taxa and by the prevalence of longirostral forms living in estuarine-neritic environments. A more diversified fauna spreading in neritic and pelagic environments characterises the Burdigalian-Langhian age, while an increase in pelagic forms and the nearly complete disappearance of some archaic longirostral taxa is typical of the Serravallian-Messinian fauna. Decrease in diversity and disappearance of archaic longirostral taxa are also recorded, at more general scale, in the Late Miocene extramediterranean fossil bearing deposits. These events can be related to the progressive global climatic deterioration, starting from Middle Miocene. From a biogeographic point a view, we can outline some relationships between the Mediterranean and western North Atlantic Miocene faunas. Closer affinities are observed between the Baltringen fauna and the northern Atlantic one, because of the presence of the genera Pomatodelphis and Zarhachis (platanistids) in both areas. In the Miocene Mediterranean and in North Atlantic, the delphinids are apparently absent as well as other extant delphinoid groups even if erroneously recorded in the past. Article in Journal/Newspaper North Atlantic toothed whale ARPI - Archivio della Ricerca dell'Università di Pisa |
institution |
Open Polar |
collection |
ARPI - Archivio della Ricerca dell'Università di Pisa |
op_collection_id |
ftunivpisairis |
language |
English |
topic |
Cetacea Odontoceti Mediterranean miocene |
spellingShingle |
Cetacea Odontoceti Mediterranean miocene BIANUCCI, GIOVANNI LANDINI, WALTER Change in diversity, ecological significance and biogeographical relationships of the Mediterranean Miocene toothed whale fauna |
topic_facet |
Cetacea Odontoceti Mediterranean miocene |
description |
The main evolutionary trend in the Mediterranean Miocene toothed whale fauna is related (1) to the change in diversity and (2) to the turnover in community structure. Diversity increases from Upper Aquitanian-Lower Burdigalian to Burdigalian-Langhian, when it reaches its maximum. Starting from this time, diversity decreases progressively. The Early Miocene (Upper Aquitanian-Lower Burdigalian) Mediterranean toothed whale fauna, as well as the extramediterranean ones, is characterised by a high number of endemic taxa and by the prevalence of longirostral forms living in estuarine-neritic environments. A more diversified fauna spreading in neritic and pelagic environments characterises the Burdigalian-Langhian age, while an increase in pelagic forms and the nearly complete disappearance of some archaic longirostral taxa is typical of the Serravallian-Messinian fauna. Decrease in diversity and disappearance of archaic longirostral taxa are also recorded, at more general scale, in the Late Miocene extramediterranean fossil bearing deposits. These events can be related to the progressive global climatic deterioration, starting from Middle Miocene. From a biogeographic point a view, we can outline some relationships between the Mediterranean and western North Atlantic Miocene faunas. Closer affinities are observed between the Baltringen fauna and the northern Atlantic one, because of the presence of the genera Pomatodelphis and Zarhachis (platanistids) in both areas. In the Miocene Mediterranean and in North Atlantic, the delphinids are apparently absent as well as other extant delphinoid groups even if erroneously recorded in the past. |
author2 |
Bianucci, Giovanni Landini, Walter |
format |
Article in Journal/Newspaper |
author |
BIANUCCI, GIOVANNI LANDINI, WALTER |
author_facet |
BIANUCCI, GIOVANNI LANDINI, WALTER |
author_sort |
BIANUCCI, GIOVANNI |
title |
Change in diversity, ecological significance and biogeographical relationships of the Mediterranean Miocene toothed whale fauna |
title_short |
Change in diversity, ecological significance and biogeographical relationships of the Mediterranean Miocene toothed whale fauna |
title_full |
Change in diversity, ecological significance and biogeographical relationships of the Mediterranean Miocene toothed whale fauna |
title_fullStr |
Change in diversity, ecological significance and biogeographical relationships of the Mediterranean Miocene toothed whale fauna |
title_full_unstemmed |
Change in diversity, ecological significance and biogeographical relationships of the Mediterranean Miocene toothed whale fauna |
title_sort |
change in diversity, ecological significance and biogeographical relationships of the mediterranean miocene toothed whale fauna |
publishDate |
2002 |
url |
http://hdl.handle.net/11568/71987 |
genre |
North Atlantic toothed whale |
genre_facet |
North Atlantic toothed whale |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000208619900002 volume:35 (Suppl.) firstpage:19 lastpage:28 numberofpages:10 journal:GEOBIOS http://hdl.handle.net/11568/71987 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0036978430 |
_version_ |
1796947575044046848 |