First fossil record of stomach content for a baleen whale: fish remains associated to a Cetotheriidae from the Miocene of the Pisco Formation (Peru)
During their evolutionary history, ancestors of modern baleen whales progressively replaced their teeth with horny structures known as baleens, thus abandoning a primitive raptorial feeding in favor of various bulk-filter feeding strategies. Among extant mysticetes, Balaenidae and Neobalaenidae slow...
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Tipografia dell'Università
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ftunivpisairis:oai:arpi.unipi.it:11568/749759 2024-04-14T08:09:32+00:00 First fossil record of stomach content for a baleen whale: fish remains associated to a Cetotheriidae from the Miocene of the Pisco Formation (Peru) COLLARETA, ALBERTO TINELLI, CHIARA LANDINI, WALTER CARAMELLA, DAVIDE Lambert, Olivier Post, Klaas Di Celma, Claudio Panetta, Daniele Tripodi, Maria Salvadori, Piero BIANUCCI, GIOVANNI Antonio Caruso, Claudia Cosentino Collareta, Alberto Tinelli, Chiara Landini, Walter Lambert, Olivier Post, Klaa Di Celma, Claudio Panetta, Daniele Tripodi, Maria Salvadori, Piero Caramella, Davide Bianucci, Giovanni 2015 STAMPA http://hdl.handle.net/11568/749759 eng eng Tipografia dell'Università country:ITA place:Palermo ispartofbook:XV Edizione delle "Giornate di Paleontologia" - Paleodays 2015. Palermo, 27-29 Maggio 2015. Proceedings. XV Edizione delle "Giornate di Paleontologia" - Paleodays 2015 firstpage:42 lastpage:43 numberofpages:2 alleditors:Antonio Caruso, Claudia Cosentino http://hdl.handle.net/11568/749759 info:eu-repo/semantics/conferenceObject 2015 ftunivpisairis 2024-03-21T18:45:48Z During their evolutionary history, ancestors of modern baleen whales progressively replaced their teeth with horny structures known as baleens, thus abandoning a primitive raptorial feeding in favor of various bulk-filter feeding strategies. Among extant mysticetes, Balaenidae and Neobalaenidae slowly skim for plankton near the sea surface, Eschrichtiidae forage for benthic invertebrates on shallow sea floors, and Balaenopteridae engulf huge amounts of prey and water while swimming fast (a feeding performance considered to be the largest biomechanical event that ever existed on Earth). Based on morphofunctional analyses of fossil skeletons, some forms of Cetotheriidae s.s. (a cosmopolitan family of mysticetes ranging from the Miocene to the Pleistocene) were proposed to feed like balaenopterids. In the middle-late Miocene Peruvian beds of the Pisco Formation exposed at Cerro Colorado (the type locality of the giant raptorial sperm whale Livyatan melvillei), fossil skeletons referred to a 5-8 m long cetotheriid sharing similarities with P. nana represent about a fifth of the whole vertebrate assemblage. This whale mainly differs from P. nana in having a larger size and more reduced or absent contact between the premaxillae and the anteroposteriorly elongated nasals. In 2014, an almost complete and fully articulated skeleton of this cetotheriid was partially excavated for taphonomic study. An accurate preparation in the field revealed the presence of tightly packed fish remains between the posterior ribs, a location most likely occupied by the caudal lobe of the forestomach of the whale. Detailed taphonomic observations were made in the field and several hundred of photos of the exposed bones were taken in order to elaborate an orthogonal 3D image of the entire skeleton. Small samples of the intercostal aggregate of bones and scales were investigated through a high resolution micro-CT scanning, revealing a complex architecture of fragmentary, deeply mingled clupeid fish remains. All the identified fossil elements ... Conference Object baleen whale baleen whales Sperm whale ARPI - Archivio della Ricerca dell'Università di Pisa Pisco ENVELOPE(-62.450,-62.450,-62.950,-62.950) |
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Open Polar |
collection |
ARPI - Archivio della Ricerca dell'Università di Pisa |
op_collection_id |
ftunivpisairis |
language |
English |
description |
During their evolutionary history, ancestors of modern baleen whales progressively replaced their teeth with horny structures known as baleens, thus abandoning a primitive raptorial feeding in favor of various bulk-filter feeding strategies. Among extant mysticetes, Balaenidae and Neobalaenidae slowly skim for plankton near the sea surface, Eschrichtiidae forage for benthic invertebrates on shallow sea floors, and Balaenopteridae engulf huge amounts of prey and water while swimming fast (a feeding performance considered to be the largest biomechanical event that ever existed on Earth). Based on morphofunctional analyses of fossil skeletons, some forms of Cetotheriidae s.s. (a cosmopolitan family of mysticetes ranging from the Miocene to the Pleistocene) were proposed to feed like balaenopterids. In the middle-late Miocene Peruvian beds of the Pisco Formation exposed at Cerro Colorado (the type locality of the giant raptorial sperm whale Livyatan melvillei), fossil skeletons referred to a 5-8 m long cetotheriid sharing similarities with P. nana represent about a fifth of the whole vertebrate assemblage. This whale mainly differs from P. nana in having a larger size and more reduced or absent contact between the premaxillae and the anteroposteriorly elongated nasals. In 2014, an almost complete and fully articulated skeleton of this cetotheriid was partially excavated for taphonomic study. An accurate preparation in the field revealed the presence of tightly packed fish remains between the posterior ribs, a location most likely occupied by the caudal lobe of the forestomach of the whale. Detailed taphonomic observations were made in the field and several hundred of photos of the exposed bones were taken in order to elaborate an orthogonal 3D image of the entire skeleton. Small samples of the intercostal aggregate of bones and scales were investigated through a high resolution micro-CT scanning, revealing a complex architecture of fragmentary, deeply mingled clupeid fish remains. All the identified fossil elements ... |
author2 |
Antonio Caruso, Claudia Cosentino Collareta, Alberto Tinelli, Chiara Landini, Walter Lambert, Olivier Post, Klaa Di Celma, Claudio Panetta, Daniele Tripodi, Maria Salvadori, Piero Caramella, Davide Bianucci, Giovanni |
format |
Conference Object |
author |
COLLARETA, ALBERTO TINELLI, CHIARA LANDINI, WALTER CARAMELLA, DAVIDE Lambert, Olivier Post, Klaas Di Celma, Claudio Panetta, Daniele Tripodi, Maria Salvadori, Piero BIANUCCI, GIOVANNI |
spellingShingle |
COLLARETA, ALBERTO TINELLI, CHIARA LANDINI, WALTER CARAMELLA, DAVIDE Lambert, Olivier Post, Klaas Di Celma, Claudio Panetta, Daniele Tripodi, Maria Salvadori, Piero BIANUCCI, GIOVANNI First fossil record of stomach content for a baleen whale: fish remains associated to a Cetotheriidae from the Miocene of the Pisco Formation (Peru) |
author_facet |
COLLARETA, ALBERTO TINELLI, CHIARA LANDINI, WALTER CARAMELLA, DAVIDE Lambert, Olivier Post, Klaas Di Celma, Claudio Panetta, Daniele Tripodi, Maria Salvadori, Piero BIANUCCI, GIOVANNI |
author_sort |
COLLARETA, ALBERTO |
title |
First fossil record of stomach content for a baleen whale: fish remains associated to a Cetotheriidae from the Miocene of the Pisco Formation (Peru) |
title_short |
First fossil record of stomach content for a baleen whale: fish remains associated to a Cetotheriidae from the Miocene of the Pisco Formation (Peru) |
title_full |
First fossil record of stomach content for a baleen whale: fish remains associated to a Cetotheriidae from the Miocene of the Pisco Formation (Peru) |
title_fullStr |
First fossil record of stomach content for a baleen whale: fish remains associated to a Cetotheriidae from the Miocene of the Pisco Formation (Peru) |
title_full_unstemmed |
First fossil record of stomach content for a baleen whale: fish remains associated to a Cetotheriidae from the Miocene of the Pisco Formation (Peru) |
title_sort |
first fossil record of stomach content for a baleen whale: fish remains associated to a cetotheriidae from the miocene of the pisco formation (peru) |
publisher |
Tipografia dell'Università |
publishDate |
2015 |
url |
http://hdl.handle.net/11568/749759 |
long_lat |
ENVELOPE(-62.450,-62.450,-62.950,-62.950) |
geographic |
Pisco |
geographic_facet |
Pisco |
genre |
baleen whale baleen whales Sperm whale |
genre_facet |
baleen whale baleen whales Sperm whale |
op_relation |
ispartofbook:XV Edizione delle "Giornate di Paleontologia" - Paleodays 2015. Palermo, 27-29 Maggio 2015. Proceedings. XV Edizione delle "Giornate di Paleontologia" - Paleodays 2015 firstpage:42 lastpage:43 numberofpages:2 alleditors:Antonio Caruso, Claudia Cosentino http://hdl.handle.net/11568/749759 |
_version_ |
1796307018354524160 |