Results 91 to 100 of about 27,457 (303)

Nasal soft‐tissue anatomy of Triceratops and other horned dinosaurs

The Anatomical Record, EarlyView.
Abstract Although ceratopsid dinosaurs possess a characteristically hypertrophied narial region, soft‐tissue anatomy associated with such a skeletal structure and their biological significance remain poorly understood. The present study provides the first comprehensive hypothesis on the soft‐tissue anatomy in the ceratopsid rostrum based on the Extant ...
Seishiro Tada, Takanobu Tsuihiji, Hiroki Ishikawa, Noriyuki Wakimizu, Soichiro Kawabe, Kodai Sakane   +5 more
wiley   +1 more source

Mitochondrial phylogenomics supports a Carboniferous origin of Xenonomia

The European Zoological Journal
Polyneoptera includes some of the best-known insect species, such as grasshoppers and cockroaches. While the evolutionary history of many Polyneoptera orders has been thoroughly explored, others have been partially overlooked.
N. Righetti, G. Forni, A. Luchetti
doaj   +1 more source

Synchrotron and Neutron Tomography of Paleontological Objects on the Facilities of the Kurchatov Institute

Journal of Imaging, 2018
The most important results of tomographic studies of paleontological objects on the facilities of the National Research Centre “Kurchatov Institute” are described.
Alexey Pakhnevich, Andrey Kurkin, Alexander Lavrov, Konstantin Tarasenko, Ekaterina Kovalenko, Alexander Kaloyan, Konstantin Podurets   +6 more
doaj   +1 more source

Stratigraphy of the Niagaran Series of the Northern Peninsula of Michigan [PDF]

, 1973
1-200http://deepblue.lib.umich.edu/bitstream/2027.42/48604/2/ID466 ...
Ehlers, G. M.
core  

A second species of non‐crocodyliform crocodylomorph from the Late Triassic fissure deposits of southwestern UK: Implications for locomotory ecological diversity in Saltoposuchidae

The Anatomical Record, EarlyView.
Abstract The Late Triassic–Early Jurassic fissures of the Bristol Channel area (southwest England and south Wales) are renowned for their diverse vertebrate faunas. These assemblages have yielded an array of predominantly small‐bodied forms that are crucial to our understanding of the early evolution of several major tetrapod clades.
Ewan H. Bodenham, Stephan N. F. Spiekman, Susannah C. R. Maidment, Paul Upchurch, Philip D. Mannion   +4 more
wiley   +1 more source

Paleontology and Geology of the Upper Triassic (Revueltian) Snyder Quarry, New Mexico

, 2003
paleontology; geology; Triassic; Revueltian; Snyder quarry; New ...
Kate E. Zeigler, Andrew B. Heckert and Spencer G. Lucas, eds.
core  

The Clarkforkian Land-Mammal Age and Mammalian Faunal Composition Across the Paleocene-Eocene Boundary [PDF]

, 1981
1-197http://deepblue.lib.umich.edu/bitstream/2027.42/48626/2/ID490 ...
Rose, Kenneth D.
core  

Inter‐ and intraspecific variation in theropod dinosaur dental microwear and its palaeoecological implications

The Anatomical Record, EarlyView.
Abstract Differences in skull and tooth morphology, stomach contents, and estimated bite force between medium‐to‐large sized (≥100 kg) predatory theropod dinosaurs have long been suspected to correlate with differences in their diets and dietary guilds (e.g., hypercarnivory, piscivory).
Cassius Morrison, James Gregory, Christopher Jackson, Jordan Bestwick, Katlin Schroeder, Samuel J.L. Gascoigne, Paul Bills, Laura B. Porro, Philip D. Mannion, Paul M. Barrett   +9 more
wiley   +1 more source

The achievements of Volodymyr Grytsenko in stratigraphy, paleontology and paleoenvironments and in the field of the geoheritage

Geo&Bio, 2018
This paper is about the achievements of V. P. Grytsenko in scientific and pedagogical activity, his discoveries in the field of paleontology and stratigraphy.
M. Reshetnik, K. Rudenko
doaj   +1 more source

Previously undocumented regional variability in crab‐eating macaque skull sexual dimorphism and its implications for biological and morphometric studies

The Anatomical Record, EarlyView.
Abstract In a large sample of adult crab‐eating macaques, we quantified sexual dimorphism in size, shape, and covariance across the whole skull and among anatomical regions of the cranium and mandible. All regions showed significant mean sex differences, but the magnitude of size and shape dimorphism varied substantially.
Andrea Cardini, Paul O'Higgins
wiley   +1 more source