Results 31 to 40 of about 89,720 (326)

New Eocene South American native ungulates from the Quebrada de los Colorados Formation at Los Cardones National Park, Argentina [PDF]

open access: yesActa Palaeontologica Polonica, 2021
In the last few years, the Quebrada de Los Colorados Formation has become an important middle Eocene fossiliferous unit in Northwestern Argentina. In this unit, the South American native ungulates were until now only represented by the order Notoungulata,
Mercedes Fernández   +6 more
doaj   +1 more source

Potential TMA-Producing Bacteria Are Ubiquitously Found in Mammalia

open access: yesFrontiers in Microbiology, 2020
Human gut bacteria metabolize dietary components such as choline and carnitine to trimethylamine (TMA) that is subsequently oxidized to trimethylamine-N-oxide (TMAO) by hepatic enzymes.
Silke Rath   +3 more
semanticscholar   +1 more source

Mammalia

open access: yesPrinciples of the Ecology, 2015
CROWN MAMMALIA (57) Node Calibrated. Divergence of monotremes, marsupials, and placentals (Figure 10). Fossil Taxon and Specimen. Bathonian australosphenidans such as Ambondro mahabo (UA-10602 University of Antananarivo, Madagascar; Flynn et al., 1999). Phylogenetic Justification. Ambondro mahabo from Madagascar (Flynn et al., 1999) is placed
Benton, MJ   +5 more
openaire   +3 more sources

Myoglobin primary structure reveals multiple convergent transitions to semi-aquatic life in the world's smallest mammalian divers

open access: yeseLife, 2021
The speciose mammalian order Eulipotyphla (moles, shrews, hedgehogs, solenodons) combines an unusual diversity of semi-aquatic, semi-fossorial, and fossorial forms that arose from terrestrial forbearers. However, our understanding of the ecomorphological
Kai He   +8 more
doaj   +1 more source

Evolutionary history of Carnivora (Mammalia, Laurasiatheria) inferred from mitochondrial genomes

open access: yesbioRxiv, 2020
The order Carnivora, which currently includes 296 species classified into 16 families, is distributed across all continents. The phylogeny and the timing of diversifications are still a matter of debate. Here, complete mitochondrial genomes were analysed

semanticscholar   +1 more source

Observation Bias in Metabarcoding. [PDF]

open access: yesMol Ecol Resour
ABSTRACT DNA metabarcoding is subject to observation bias associated with PCR and sequencing, which can result in observed read proportions differing from actual species proportions in the DNA extract. Here, we amplify and sequence a mock community of known composition containing marine fishes and cetaceans using four different primer sets and a ...
Shaffer MR   +5 more
europepmc   +2 more sources

Diversity and Relative Abundance of Ungulates and Other Medium and Large Mammals in Flooded Forests in the Dahomey Gap (Togo)

open access: yesAnimals, 2022
“The Dahomey Gap” is a human-derived mostly savannah region that separates the Guineo-Congolian rainforest block into two major units: the Upper Guinean and the Lower Guinean Forest blocks.
Gabriel Hoinsoudé Segniagbeto   +7 more
doaj   +1 more source

Postcranial remains of basal typotherian notoungulates from the Eocene of northwestern Argentina [PDF]

open access: yesActa Palaeontologica Polonica, 2020
Notoungulates represent the most taxonomically diverse and temporally and geographically widespread group among South American native ungulates. Here, we analyze anatomical and systematic aspects of proximal tarsal bones recovered from the Lower and ...
Matías A. Armella   +6 more
doaj   +1 more source

The paleoecology of the Late Miocene mammals from the Optima Local Fauna of Oklahoma, USA [PDF]

open access: yesActa Palaeontologica Polonica, 2022
The Optima Local Fauna represents an important glimpse into the ecological transition between savannah and grassland during the late Miocene (Hemphillian) of what is now the southcentral Great Plains of North America.
JOSEPH A. FREDERICKSON   +6 more
doaj   +1 more source

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