Results 1 to 10 of about 1,746 (192)

Sirenian genomes illuminate the evolution of fully aquatic species within the mammalian superorder afrotheria [PDF]

open access: yesNature Communications, 2023
Sirenians of the superorder Afrotheria were the first mammals to transition from land to water and are the only herbivorous marine mammals. Here, we generated a chromosome-level dugong (Dugong dugon) genome.
Ran Tian   +13 more
doaj   +3 more sources

Polyplacophoran Feeding Traces on Mediterranean Pliocene Sirenian Bones: Insights on the Role of Grazing Bioeroders in Shallow-Marine Vertebrate Falls [PDF]

open access: yesLife, 2023
Chitons (Polyplacophora) include some of the most conspicuous bioeroders of the present-day shallow seas. Abundant palaeontological evidence for the feeding activity of ancient chitons is preserved in the form of radular traces that are usually found on ...
Alberto Collareta   +5 more
doaj   +3 more sources

Investigation into the causes of mortality in cetaceans and sirenian populations in the Andaman Sea, Thailand: A retrospective analysis spanning 2018–2023 [PDF]

open access: yesVeterinary World
Background and Aim: Cetaceans and sirenians are endangered marine mammals that are threatened by stranding and mortality. In Thailand’s Andaman Sea, limited data exist on the causes and patterns of these events.
Chayanis Daochai   +9 more
doaj   +3 more sources

First adequately-known quadrupedal sirenian from Eurasia (Eocene, Bay of Biscay, Huesca, northeastern Spain). [PDF]

open access: yesSci Rep, 2018
Sirenians are the only extant herbivorous mammals fully adapted to an aquatic lifestyle. They originated in Africa during the Paleocene from an undetermined clade of afrotherian mammals, and by the end of the Eocene they were widely distributed across ...
Díaz-Berenguer E   +3 more
europepmc   +7 more sources

Total evidence time-scaled phylogenetic and biogeographic models for the evolution of sea cows (Sirenia, Afrotheria) [PDF]

open access: yesPeerJ, 2022
Molecular phylogenetic studies that have included sirenians from the genera Trichechus, Dugong, and Hydrodamalis have resolved their interrelationships but have yielded divergence age estimates that are problematically discordant.
Steven Heritage, Erik R. Seiffert
doaj   +3 more sources

A new miocene sirenian from Kutch, India [PDF]

open access: yesActa Palaeontologica Polonica, 2009
We report a new Miocene sirenian from District Kutch, State of Gujarat, India: Domingia sodhae gen. et sp. nov. The new species is a dugongine dugongid with flattened tusk-like upper incisors. Like some other Miocene dugongids, Domningia is large and has
Bajpai, Sunil, Thewissen, J. G. M.
core   +4 more sources

Evolution of an extreme hemoglobin phenotype contributed to the sub-Arctic specialization of extinct Steller’s sea cows [PDF]

open access: yeseLife, 2023
The extinct Steller’s sea cow (Hydrodamalis gigas; †1768) was a whale-sized marine mammal that manifested profound morphological specializations to exploit the harsh coastal climate of the North Pacific.
Anthony V Signore   +5 more
doaj   +2 more sources

Fossil Sirenia from the Pleistocene of Qatar: new questions about the antiquity of sea cows in the Gulf Region [PDF]

open access: yesPeerJ, 2022
One of the largest and least documented populations of dugongs (Dugong dugon) resides in the coastal waters of the United Arab Emirates, and waters surrounding Saudi Arabia, Bahrain, and Qatar.
Nicholas D. Pyenson   +8 more
doaj   +3 more sources

Miocene Shark and Batoid Fauna from Nosy Makamby (Mahajanga Basin, Northwestern Madagascar). [PDF]

open access: yesPLoS ONE, 2015
Madagascar is well known for producing exceptional fossils. However, the record for selachians remains relatively poorly known. Paleontological reconnaissance on the island of Nosy Makamby, off northwest Madagascar, has produced a previously undescribed ...
Tsiory H Andrianavalona   +5 more
doaj   +2 more sources

ON A SKULL OF A SIRENIAN FROM THE EARLY PLIOCENE OF SIENA, TUSCANY

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2020
A fine skull of a sirenian from Early Pliocene littoral sands with Late Ruscinian terrestrial mammals near Siena is referred to Metaxitherium gervaisi (Capellini, 1872); it provides detailed information on the characters of this species, which was ...
DANIELA CANOCCHI
doaj   +2 more sources

Home - About - Disclaimer - Privacy