Results 171 to 180 of about 11,869 (271)

Elliptic Fourier analysis as a tool for the taxonomic identification of isolated theropod pedal phalanges

The Anatomical Record, EarlyView.
Abstract Studies of Upper Cretaceous deposits in North America have provided invaluable insights into the continental ecosystems of this time. Theropod (Saurischia, Dinosauria) pedal phalanges are commonplace in these deposits but can be difficult to identify at a finer taxonomic resolution.
Trystan M. Warnock‐Juteau, Stephanie M. Smith, Thomas M. Cullen   +2 more
wiley   +1 more source

Minerals and atmosphere coevolve in the Earth's history. [PDF]

Natl Sci Rev
Krivovichev SV.
europepmc   +1 more source

Clade‐wide morphological and functional variation of the sauropsid columella

The Anatomical Record, EarlyView.
Abstract The columella (=stapes) is the middle ear bone of reptiles that transmits vibrations from the environment to the inner ear. It has been shown to exhibit extensive interspecific morphological disparity in several clades; however, its morphological variation and associated functional consequences remain poorly described.
John Peacock, Serjoscha W. Evers, Tiago R. Simões, Garth M. Spellman, Daniel J. Field   +4 more
wiley   +1 more source

The structure of a complex, asymmetric coronal mass ejection revealed by 17 spacecraft across the inner heliosphere. [PDF]

Sci Adv
Luspay-Kuti A, Turner DL, Paouris E, Vourlidas A, Crew AB, McNutt RL, Westlake JH, Raptis S, Cochrane CJ, Jia X, Raymond CA, Korth H, Heyner D, Hanley K, Rahmati A, Gruesbeck JR, Halekas JS, Curry SM, Smith HT, Stevens ML, Roussos E, Mandt KE, Kivelson MG, Slavin JA, Waller D, Khurana KK, Nordheim TA, Paty CS, Rymer AM, Saur J, Krupp N.   +30 more
europepmc   +1 more source

Working with laws, regularities and singularities in biology: The evolution of mammalian red blood cell size as a case study

The Anatomical Record, EarlyView.
Abstract Phylogenetic comparative methods have been used in recent literature to work with laws and test for regularities (evolutionary associations of quantitative features) and evolutionary singularities (features that evolved in a single taxon). We analyzed these uses epistemologically, taking the evolution of red‐blood‐cell mean corpuscular volume (
Jorge Cubo, Paul Aubier, Cassandra Cheyron, Isabelle Drouet   +3 more
wiley   +1 more source

The chemistry of habitable oceans in the Solar system. [PDF]

Nat Commun
Hao J, Zhu Y, Knoll AH, Tosca NJ, He C, Vetter MCYL, Liao L, Crockford PW, Stüeken EE, Huo A, Li J, Mondal JA, Catling DC, Song Y, Ju P, Pan L, Huang F, Glein CR.   +17 more
europepmc   +1 more source

Integrated microanatomy and microstructure of the maxillary tooth plate reveal a reinforced feeding system and tougher diet in Late Triassic Hyperodapedontinae (Rhynchosauria, Archosauromorpha)

The Anatomical Record, EarlyView.
Abstract Hyperodapedontine rhynchosaurs possessed a unique oral apparatus, long interpreted as an adaptation for processing abrasive and resistant plant material. However, the microanatomical and histological evidence supporting this interpretation remains poorly documented.
Caio A. Scartezini, Pedro L. B. Pruciano, Brodsky D. M. Farias, Marina B. Soares   +3 more
wiley   +1 more source

BroadSCOPE: An Optical Broadband Seismic Sensor for Planetary Exploration. [PDF]

Space Sci Rev
Marusiak AG, DellaGiustina DN, Avenson BD, Kim D, Ballouz RL, Benna M, Bennett CA, Bray VJ, Golish DR, Hofstadter D, Johnson E, Martineau R, Meyer S, Neilsen T, Reiss E, Schmerr NC, Walsh KJ, Weber RC, Zacny K, Hop Bailey S.   +19 more
europepmc   +1 more source

New fossil unveils the dentary anatomy of the rare lepidosauromorph Cargninia enigmatica from the Upper Triassic of Southern Brazil

The Anatomical Record, EarlyView.
Abstract Nowadays, Lepidosauria is a diverse group represented by squamates and the rhynchocephalian tuatara. However, their origins date back to the end of the Permian Period, when the stem lineages Lepidosauromorpha and Archosauromorpha diverged. Within the lepidosauromorph stem lineage, a few species have been described with unstable phylogenetic ...
Lísie Vitória Soares Damke, Vitória Zanchett Dalle‐Laste, Leonardo Kerber, Lúcio Roberto‐da‐Silva, Rodrigo Temp Müller   +4 more
wiley   +1 more source

Mercury's crustal magnetization indicates a stronger ancient dynamo. [PDF]

Proc Natl Acad Sci U S A
Narrett IS, Weiss BP, Steele SC, Biersteker JB.   +3 more
europepmc   +1 more source