Results 141 to 150 of about 669,313 (269)

Morphological diversity of saber‐tooth upper canines and its functional implications

open access: yesThe Anatomical Record, EarlyView.
Abstract Elongated upper canine teeth, commonly known as saber‐teeth, have evolved three times within the sub‐order Feliformia. The species that wielded them flourished throughout the Cenozoic and have historically been separated into two morphological groups: the dirk‐tooths with longer, flatter canines, and the scimitar‐tooths with shorter, serrated ...
Caitlin D. Shelbourne   +1 more
wiley   +1 more source

The Inertia Coefficients of an Airship in a Frictionless Fluid [PDF]

open access: yes
The apparent inertia of an airship hull is examined. The exact solution of the aerodynamical problem is studied for hulls of various shapes with special attention given to the case of an ellipsoidal hull.
Bateman, H.
core   +1 more source

Is cranial anatomy indicative of fossoriality? A case study of the mammaliaform Hadrocodium wui

open access: yesThe Anatomical Record, EarlyView.
Abstract Determining the ecology of fossil species presents considerable challenges due to the often fragmentary preservation of specimens. The mammaliaform Hadrocodium wui from the Jurassic of China is known only from the cranium and mandible but may have had a fossorial lifestyle.
Molly Tumelty, Stephan Lautenschlager
wiley   +1 more source

“Visiting scientist effect”? Exploring the impact of time‐lags in the digitization of 2D landmark data

open access: yesThe Anatomical Record, EarlyView.
Abstract Measurement error (ME) in geometric morphometrics has been the subject of countless articles, but none specific to the effect of time lags on landmark digitization error. Yet, especially for visiting scientists working on museum collections, it is not uncommon to collect data in multiple rounds, with interruptions of weeks or years. To explore
Andrea Cardini
wiley   +1 more source

Lagomorph cranial biomechanics and the functional significance of the unique fenestrated rostrum of leporids

open access: yesThe Anatomical Record, EarlyView.
Abstract The crania of leporid lagomorphs are uniquely fenestrated, including the posterior cranial bones and the lateral portion of the maxilla. The functional significance of the highly fenestrated rostrum has received considerably little attention, despite being absent in other mammalian herbivores with a long rostrum.
Amber P. Wood‐Bailey, Alana C. Sharp
wiley   +1 more source

Rhinoprosopa Hull

open access: yes, 2009
Published as part of Mengual, Ximo, Ruiz, Carlos, Rojo, Santos, Ståhls, Gunilla & Thompson, Christian, 2009, A conspectus of the flower fly genus Allograpta (Diptera: Syrphidae) with description of a new subgenus and species, pp.
Mengual, Ximo   +4 more
openaire   +2 more sources

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

Corrigendum: Characterization of structure and antioxidant activity of polysaccharides from sesame seed hull

open access: yesFrontiers in Nutrition, 2022
Run-Yang Zhang   +6 more
doaj   +1 more source

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