Results 31 to 40 of about 2,346 (206)

A new estimate of afrotherian phylogeny based on simultaneous analysis of genomic, morphological, and fossil evidence [PDF]

, 2007
Background The placental mammalian clade Afrotheria is now supported by diverse forms of genomic data, but interordinal relationships within, and morphological support for, the group remains elusive.
Erik R Seiffert
core   +2 more sources

The Respiratory System of the Arctocephalus australis in Comparison to the Dog as a Land-Carnivore: Are There Adaptations to Marine Life?

Animals, 2023
Marine mammals are divided into three groups, with similar adaptations resulting from their aquatic lifestyle: sirenians, pinnipeds, and cetaceans. The present work focused on the South American fur seal, or Arctocephalus australis, a carnivore included ...
Ignacio Molpeceres-Diego, Rosario Martín-Orti, Juan-Pablo Loureiro, Carlos Tostado-Marcos, Enrique Tendillo-Domínguez, Inmaculada Santos-Álvarez, Pilar Pérez-Lloret, Juncal González-Soriano   +7 more
doaj   +1 more source

El manatí (Trichechus manatus manatus Linnaeus,1758) (Sirenia) una especie sombrilla, para el Sistema Lagunar de Alvarado, Veracruz [PDF]

, 2010
The most emblematic mammal in the Alvarado Lagoon System (ALS) is the West Indian manatee (Trichechus manatus manatus). In July 1975 was considered as endangered species by the Convention on International Trade in Endangered Species of Fauna and Flora ...
Daniel Rentería, Iliana del Carmen, Serrano Solís, Arturo, Sánchez Rojas, Gerardo   +2 more
core   +2 more sources

Cranial remain from Tunisia provides new clues for the origin and evolution of Sirenia (Mammalia, Afrotheria) in Africa.

PLoS ONE, 2013
Sea cows (manatees, dugongs) are the only living marine mammals to feed solely on aquatic plants. Unlike whales or dolphins (Cetacea), the earliest evolutionary history of sirenians is poorly documented, and limited to a few fossils including skulls and ...
Julien Benoit, Sylvain Adnet, Essid El Mabrouk, Hayet Khayati, Mustapha Ben Haj Ali, Laurent Marivaux, Gilles Merzeraud, Samuel Merigeaud, Monique Vianey-Liaud, Rodolphe Tabuce   +9 more
doaj   +1 more source

FIRST RECORD OF DUGONGIDAE (MAMMALIA: SIRENIA) FROM THE FLORESTA CALCARENITES FORMATION (LATE BURDIGALIAN – EARLY LANGHIAN, REGGIO CALABRIA, SOUTHERN ITALY)

Rivista Italiana di Paleontologia e Stratigrafia, 2016
A sirenian rib has been recovered at Motta San Giovanni (Reggio Calabria) in the “Floresta Calcarenites”, a Formation cropping out in Sicily and Calabria and dated late Burdigalian-Langhian.
GIUSEPPE CARONE, ANTONELLA CINZIA MARRA, CATERINA MESIANO   +2 more
doaj   +1 more source

How is the third jaw joint in whales different? Diverse modes of articulation between the jaws of whales. [PDF]

J Anat
This study conducts the first comprehensive morphological investigation of the mandibular symphysis in whales. Using gross anatomical observation and CT cross‐sectional data, we describe diverse joint morphologies across 74 extant and fossil cetacean taxa. Toothed whales exhibit unfused, partially fused, or fully fused symphyses.
Strauch RJ, Pyenson ND, Peredo CM.
europepmc   +2 more sources

Evaluating the role of seagrass in Cenozoic CO2 variations [PDF]

, 2016
Marine seagrass angiosperms play an important role in carbon sequestration, removing carbon dioxide from the atmosphere and binding it as organic matter. Carbon is stored in the plants themselves, but also in the sediments both in inorganic and organic
Brandano, Marco, Cuffaro, Marco, Gaglianone, Giovanni, Mateu Vicens, Guillem, Petricca, Patrizio, Stagno, Vincenzo   +5 more
core   +2 more sources

Morphology, morphometry and ultrastructure of the Amazonian manatee (Sirenia: Trichechidae) spermatozoa

Zoologia (Curitiba), 2010
This study describes the morphological, morphometric and ultrastructural characteristics of the Amazonian manatee Trichechus inunguis (Natterer, 1883) spermatozoon. The spermatozoa were obtained from a urine sample of an adult T.
Rodrigo S. Amaral, Carolina M. Lucci, Fernando C. W. Rosas, Vera M. F. da Silva, Sônia N. Báo   +4 more
doaj   +1 more source

Local competition and metapopulation processes drive long-term seagrass-epiphyte population dynamics [PDF]

, 2013
It is well known that ecological processes such as population regulation and natural enemy interactions potentially occur over a range of spatial scales, and there is a substantial body of literature developing theoretical understanding of the interplay ...
Bull, James C., Cook, Kevan J., Kenyon, Emma J., Lobelle, Delphine, Unsworth, Richard K.F.   +4 more
core   +3 more sources

Biomechanical evolution of solid bones in large animals: a microanatomical investigation [PDF]

, 2016
International ...
Alexander, Alexandra Houssaye, Amson, Andrew H. Lee, Antoine, Bibi, Blomberg, Buffrénil, Campione, Canoville, Carrano, Carrano, Christiansen, Clementz, Cornette, Cubo, Doube, Doube, Dumont, Evin, Fish, Garland, Garland, Gheerbrant, Gilbert, Girondot, Gray, Gregory, Hayashi, Hildebrand, Hokkanen, Houssaye, Houssaye, Houssaye, Houssaye, Houssaye, Houssaye, Houssaye, John R. Hutchinson, Katja Waskow, Klein, Laurin, Meredith, Nakajima, O'Neill, Oxnard, Oxnard, Polly, Prothero, Quemeneur, R Core Team, Ramsay, Raphaël Cornette, Remes, Ren, Ren, Ripley, Ross, Ruff, Sander, Schalkwyk, Schmidt-Nielsen, Sereno, Shoji Hayashi, Steiner, Straehl, Thompson, Todd, Venables, Vizcaino, Wall, Warner, Waskow   +72 more
core   +3 more sources