Results 51 to 60 of about 94,563 (267)

Early Pliocene Varanus (Squamata, Varanidae) remains from Megalo Emvolon, Thessaloniki, Greece

The Anatomical Record, EarlyView.
The article describes new cranial and postcranial varanid material from Megalo Emvolon Lower Pliocene vertebrate fossil site near Thessaloniki. The fossils, likely representing a single individual, are referred to Varanus cf. marathonensis. Abstract This study describes new fossil varanid material from a recently discovered fossil spot (MVL site) at ...
Chara Drakopoulou, Georgios L. Georgalis, Georgios Lazaridis, Dimitris S. Kostopoulos   +3 more
wiley   +1 more source

Osteohistology of two phorusrhacids reveals uninterrupted growth strategy

The Anatomical Record, EarlyView.
Abstract Phorusrhacidae were apex predators that primarily dominated South America ecosystems for at least 40 million years with their imposing size and predatory lifestyle—yet some aspects of their biology remain poorly understood. Osteohistology is a tool for understanding growth dynamics and biomechanical adaptations.
Lotta Dreyer, Christian Cooper, Jingmai O'Connor   +2 more
wiley   +1 more source

Primer Frenguelliidae (Insecta: Odonata) del Eoceno de Río Pichileufú, Patagonia, Argentina [PDF]

, 2017
Se describe un nuevo género, Treintamilun gen. nov., basado en Treintamilun vuelvenlucha sp. nov. de la localidad de Río Pichileufú (Luteciano), Provincia de Río Negro, Patagonia, Argentina. El nuevo género se asigna a Frenguelliidae.
Petrulevicius, Julian Fernando
core  

Paleogene monsoons across India and South China: Drivers of biotic change [PDF]

, 2017
Monsoonal climates at low latitudes (2. Fossil leaf form reveals that under such 'hothouse' conditions megathermal early Eocene to earliest Miocene forests were exposed to strong monsoonal climates typical of those experienced today arising from annual ...
Aleksandrova, Galina, Ding, Lin, Herman, Alexei, Jin, Jian-Hua, Kodrul, Tatiana, Liu, Xiao-Yan, Maslova, Natalia, Mehrotra, Rakesh, Shukla, Anumeha, Spicer, Robert, Spicer, Teresa, Srivastava, Gaurav, Xu, Qiang, Yang, Jian   +13 more
core   +1 more source

MicroCT reinvestigation of the only articulated fossil anostomid fish reveals synonymy of Arhinolemur Ameghino, 1898 and Megaleporinus Ramirez et al., 2017

The Anatomical Record, EarlyView.
Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri, Humberto L. Andrelino, Sergio Bogan, José P. O'Gorman, Federico Agnolín, Brian L. Sidlauskas, Nahuel Vega, Agustín G. Martinelli, José L. Birindelli   +8 more
wiley   +1 more source

Oldest well‐preserved euprimate petrosal, from the early Eocene of India (Vastan Lignite Mine, Gujarat)

The Anatomical Record, EarlyView.
Abstract An exquisitely preserved, isolated partial petrosal with associated fragmentary stapes is described from the Vastan Lignite Mine (Gujarat, India), dated to the early Eocene (~54.5 Ma). Several anatomical traits (e.g., large petrosal plate; posterolateral entry of the internal carotid artery to the tympanic cavity; bony tubes surrounding the ...
Mary T. Silcox, Kenneth D. Rose, Rachel H. Dunn, Kishor Kumar, Rajendra S. Rana, Ashok Sahni, Lachham Singh, Thierry Smith, Jordan W. Crowell   +8 more
wiley   +1 more source

Coevolution of minerals in lacustrine mudstone during diagenesis: a case study of the dongying depression in the Bohai Bay Basin

Frontiers in Earth Science
In sedimentary basins, the lithologic characteristics of mudstone in different lithofacies differ, which is caused by the different types of diagenesis after sedimentation.
Zongxuan Zhang, Zongxuan Zhang, Zaixing Jiang, Zaixing Jiang, Yepeng Yang, Yepeng Yang   +5 more
doaj   +1 more source

Tracing the evolutionary history of the morpho‐anatomy of baculum in primates

The Anatomical Record, EarlyView.
Abstract Animal morphology reflects both evolutionary history and present‐day adaptation. Male mammal copulatory structures such as the baculum (penile bone) are ideal for studying these processes because of their complexity and high interspecific variability. In primates, however, research has focused mostly on baculum length.
Federica Spani, Maria Pia Morigi, Matteo Bettuzzi, Monica Carosi   +3 more
wiley   +1 more source

Tracing the origins and evolution of nymphalid butterflies (Lepidoptera) in the Atlantic Forest

Ecography, EarlyView.
Understanding the relative roles of diversification and dispersal is key to explaining large‐scale biogeographical patterns. Although both processes are known to shape biodiversity, their relative contributions remain understudied for many organisms. Here, we examine how these processes have jointly contributed to the exceptional diversity and endemism
Mar Repullés, Nicolas Chazot, Leidys Murillo‐ Ramos, Marianne Espeland, Karina Lucas Silva‐ Brandão, Alexandre Antonelli, André Victor Lucci Freitas, Pável Matos‐Maraví   +7 more
wiley   +1 more source

Asian gliriform origin for arctostylopid mammals [PDF]

, 2006
A
A Sulimski, AR Bleefeld, AR Wyss, B Patterson, Dian-Yong Guo, FS Szalay, FS Szalay, J Meng, JI Bloch, Jonathan I. Bloch, KC Beard, M Schlosser, P Missiaen, PD Gingerich, PE Kondrashov, Philip D. Gingerich, Pieter Missiaen, R Tabuce, RJ Asher, RL Cifelli, RL Cifelli, RL Cifelli, RL Cifelli, S Ting, SP Zack, T Smith, Thierry Smith, WD Matthew, WD Matthew   +28 more
core   +2 more sources