Results 81 to 90 of about 30,339 (229)

Body Size Regulates Niche Overlap Asymmetry in the Subtropical Andes Rain Shadow: Isotopic Paleoecology of Oligocene South American Ungulates

Integrative Zoology, EarlyView.
This study provides the first isotopic analysis of Oligocene mammals from Quebrada Fiera, Mendoza, Argentina, filling a major gap in South American paleontology. It reveals a latitudinal gradient in aridity due to the Andean rain shadow and highlights the role of (semi)permanent water bodies in sustaining diverse herbivore communities. Additionally, it
Dánae Sanz‐Pérez, Santiago Hernández Del Pino, Esperanza Cerdeño, Manuel Hernández Fernández, Laura Domingo   +4 more
wiley   +1 more source

Palynostratigraphy and palynofacies of the early Eocene Gurha lignite mine, Rajasthan, India [PDF]

, 2016
A 105 m early Eocene section exposed in the Gurha mine in the Nagaur-Ganganagar Basin, Rajasthan, India, archiving remains of equatorial vegetation at a time of extreme global warmth and close to the onset of the India-Eurasia collision, is investigated ...
Aggarwal, Anumeha Shukla, Batten, Biswas, Clausing, Dayal, Eberle, Frederiksen, Germeraad, Grice, Harley, Hart, Kar, Kar, Kar, Kar, Knights, Kumar, Kumar, Kumar, Lal, Madhav Kumar, Martin, Masron, Molnar, Morley, Muller, Norton, Pocock, Priyanka Monga, R.C. Mehrotra, Raju, Rao, Rao, Rao, Rawat, Robert A. Spicer, Roy, Sah, Shukla, Teresa E.V. Spicer, Thanikaimoni, Traverse, Tripathi, Tyson, Van Geel, Wang, Zachos, Zachos, Zarzen, Zarzen   +50 more
core   +1 more source

Comparative endocranial anatomy in the crocodylians Leidyosuchus canadensis and Stangerochampsa mccabei from the upper Cretaceous of Alberta, Canada

Journal of Anatomy, EarlyView.
Leidyosuchus canadensis and Stangerochampsa mccabei share endocranial features such as posterior projection of a neurovascular canal in the maxilla and a paratympanic sinus system most similar to those of small‐bodied and young extant crocodylians, suggesting that these pedomorphic features may reflect the ancestral crocodylian condition.
G. Donzé, G. Perrichon, P. Vincent, F. Therrien, J. E. Martin   +4 more
wiley   +1 more source

Frequency of arboreality is correlated with longer hand skeletons in Gorilla: Analysis of a new skeletal sample of Bwindi mountain gorillas

Journal of Anatomy, EarlyView.
Variation in arboreality across gorilla populations is associated with systematic differences in manual digital lengths. Using a new dataset of linear metrics from the Bwindi mountain gorillas, we quantify metacarpal and phalangeal lengths in eastern and western gorilla populations across all five rays. Consistent with quantified behavioral differences,
Elliot G. Greiner, Christopher B. Ruff, Charlotte King, Aventino Nkwasibwe, Thadee Muhire, Emmanuel Tibenda, Jason S. Massey, Juho‐Antti Junno, Rowan M. Sherwood, Jean Bosco Noheri, Fred Nizeyimana, Tierra Smiley Evans, Richard Muvunyi, Dennis Babaasa, Martha M. Robbins, Shannon C. McFarlin, Tracy L. Kivell   +16 more
wiley   +1 more source

What, if anything, is a Paratrochamminoides? A key to the morphology of the Cretaceous to Cenozoic species of Conglophragmium and Paratrochamminoides (Foraminifera) [PDF]

, 2004
We present a review of the current taxonomical status of the genus Paratrochamminoides Soliman, 1972. We recognise five main subgroups of this genus based upon the following modes of coiling: trochospiral, streptospiral, glomospiral, triloculine or ...
Kaminski, M.A., Kuhnt, W.
core  

Endocranial anatomy of the earliest Cretaceous European neosuchian crocodyliform Pholidosaurus purbeckensis provides new evidence for the ecological evolution of Pholidosauridae

Journal of Anatomy, EarlyView.
We present new insights into the internal cranial anatomy of the neosuchian crocodyliform Pholidosaurus purbeckensis, based on CT‐scan data of material from the lowermost Cretaceous Purbeck Limestone Group, southern UK. From the study of the endocast, we obtained new information on the phylogeny and the ecological evolution of the Family ...
Leonardo Barbini, Paul M. J. Burke, Ilaria Caddeo, Marco Romano, Philip D. Mannion   +4 more
wiley   +1 more source

Postcranial anatomy of the Miocene hippopotamoids of Toros‐Menalla, Chad

Journal of Anatomy, EarlyView.
We establish a framework for the identification of postcranial remains in hippopotamoids by describing and comparing for the first time two late Miocene hippopotamoids from Toros‐Menalla, Chad (Hexaprotodon garyam, an early hippopotamid, and Libycosaurus bahri, the last African anthracothere) with the common hippopotamus.
Lorenzo Scribano, Fabrice Lihoreau, Alexandra Houssaye, Clarisse Nekoulnang Djetounako, Jean‐Renaud Boisserie   +4 more
wiley   +1 more source

Allometric patterns in Rhamphorhynchus muensteri and their role in the paleoecology, life habits, and taxonomic framework of pterosaurs

Journal of Anatomy, EarlyView.
The Graphical Abstract ilustrates the different allometric pattern within different Pterosauria groups, highlighting how the allometry influences the flight and habits of Pterosauria. Abstract Pterosaurs were the first vertebrates to achieve powered flight, a result of various unique anatomical adaptations, and significant morphological diversity ...
Gabriela Menezes Cerqueira, João Lucas Da Silva, Ingmar Werneburg, Mario Bronzati, Alex Sandro Schiller Aires, Felipe L. Pinheiro, Rodrigo Temp Müller   +6 more
wiley   +1 more source

Response of Soils and Soil Ecosystems to the Pennsylvanian–Permian Climate Transition in the Upper Fluvial Plain of the Dunkard Basin, Southeastern Ohio, USA

Geosciences, 2018
Direct exposure of paleosols to the atmosphere during formation make them ideal for reconstructing paleoclimate. Paleosol and ichnofossil properties are dependently linked making it important to study them in tandem, to avoid errors in interpretation ...
Daniel I. Hembree, Jennifer L. Carnes
doaj   +1 more source

Early evolutionary history of the seed

Biological Reviews, Volume 101, Issue 3, Page 1511-1553, June 2026.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman, Alan R. T. Spencer, Jason Hilton   +2 more
wiley   +1 more source