Results 101 to 110 of about 99,859 (391)

The first report of South American edrioasteroids and the paleoecology and ontogeny of rhenopyrgid echinoderms [PDF]

open access: yes, 2013
A new species of rhenopyrgid edrioasteroid Rhenopyrgus piojoensis sp. nov. is described form the Silurian (Lower Lud− low) Los Espejos Formation in the Precordillera of Argentina.
Heredia, Susana Emma   +3 more
core   +1 more source

But how does it smell? An investigation of olfactory bulb size among living and fossil primates and other euarchontoglirans

open access: yesThe Anatomical Record, EarlyView.
Analysis of cranial endocast data of 181 extant and 41 fossil species from Euarchontoglires shows that there was a reduction in olfactory bulb size in Crown Primates, but that there were also subsequent reductions in various other primate clades (Anthropoidea, Catarrhini, Platyrrhini, crown Cercopithecoidea, Hominoidea).
Madlen Maryanna Lang   +6 more
wiley   +1 more source

Vertebrate Footprints and Invertebrate Traces from the Cadronian(Late Eocene) of Trans-Pecos Texas [PDF]

open access: yes, 1994
Contents: Abstract -- Introduction -- Methods -- Acknowledgments -- Systematic Paleontology -- Vertebrate Footprints -- Invertebrate Traces -- Conclusions -- Plates -- ReferencesCeratomorph remains found in Eocene and Oligocene deposits of Trans-Pecos ...
Langston Jr, Wann   +1 more
core  

A perspective from the Mesozoic: Evolutionary changes of the mammalian skull and their influence on feeding efficiency and high‐frequency hearing

open access: yesThe Anatomical Record, EarlyView.
Abstract The complex evolutionary history behind modern mammalian chewing performance and hearing function is a result of several changes in the entire skeletomuscular system of the skull and lower jaw. Lately, exciting multifunctional 3D analytical methods and kinematic simulations of feeding functions in both modern and fossil mammals and their ...
Julia A. Schultz
wiley   +1 more source

LA MODALIDAD EPISTÉMICA ASERTIVA COMO RECURSO RETÓRICO EN NOTICIAS CIENTÍFICAS: EL CASO DEL HALLAZGO PALEONTOLÓGICO DEL HOMBRE DE ORCE

open access: yesRevista de Lingüística y Lenguas Aplicadas, 2007
<p class="MsoNormal">Este art&iacute;culo analiza la modalidad epist&eacute;mica asertiva (expresi&oacute;n de la certeza) en un conjunto de noticias cient&iacute;ficas sobre el hallazgo paleontol&oacute;gico del llamado Hombre ...
José Antonio Díaz Rojo
doaj   +1 more source

Nothing Besides Remains: Preserving the Scientific and Cultural Value of Paleontological Resources in the United States [PDF]

open access: yes, 2005
Receptor occupancy assessed by Positron Emission Tomography (PET) can provide important translational information to help bridge information from one drug to another or from animal to man.
Chew, Alexa Z.
core   +1 more source

Spechts Ferry (Middle Ordovician) bryozoan fauna from Illinois, Wisconsin, and Iowa. [PDF]

open access: yes, 1962
Information circular / Illinois State Geological
Perry, Thomas G. (Thomas Gregory), 1918-
core   +2 more sources

Vertebrate Paleontology of the Cloverly Formation (Lower Cretaceous), II: Paleoecology

open access: yesJournal of Vertebrate Paleontology, 2016
Vertebrate microfossil assemblages in terrestrial formations are a promising source of data on the structure of fossil metacommunities. However, the degree to which these deposits capture true, metacommunity-level samples is unknown.
M. Carrano, M. P. J. Oreska, R. Lockwood
semanticscholar   +1 more source

Morphology and paleoecology of a hybodontiform with serrated teeth, Priohybodus arambourgi, from the Late Jurassic of northeastern Brazil

open access: yesThe Anatomical Record, EarlyView.
Abstract Hybodontiformes was a diverse, successful, and important group of shark‐like chondrichthyans known from a variety of ecosystems. Some representatives of the order had a wide palaeogeographic distribution, as is the case with Priohybodus arambourgi. With a multicuspidate crown, P. arambourgi was the first hybodontiform to develop fully serrated
Estevan Eltink   +5 more
wiley   +1 more source

Osteology and relationships of Rhinopycnodus gabriellae gen. et sp. nov. (Pycnodontiformes) from the marine Late Cretaceous of Lebanon [PDF]

open access: yes, 2013
The osteology of Rhinopycnodus gabriellae gen. and sp. nov., a pycnodontiform fish from the marine Cenomanian (Late Cretaceous) of Lebanon, is studied in detail.
Capasso, Luigi, Taverne, Louis
core   +3 more sources

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