Results 51 to 60 of about 211,638 (344)

Late Mesozoic marine Antarctic fishes: future perspectives based on the newly collections recovered in the Ameghino and López de Bertodano Formations [PDF]

Research & Knowledge, 2017
Nowadays, notothenioids are the teleostean group that dominates marine Antarctic waters. However, during the Mesozoic a diverse ichthyofauna inhabited the sea that surrounded Antarctic.
Soledad Gouiric-Cavalli, Leonel Acosta Burllaile, Ari Iglesias, Juan J. Moly, José P. O´Gorman, Marcelo Reguero, Sergio Santillana, Marianella Talevi, Carolina Vieytes, Mauricio A. Bigurrarena Ojeda, Jorge Lusky   +10 more
doaj   +1 more source

A new azhdarchid pterosaur from the Late Cretaceous of the Transylvanian Basin, Romania: Implications for azhdarchid diversity and distribution

, 2013
We describe a new taxon of medium-sized (wing span ca. 3 m) azhdarchid pterosaur from the Upper Cretaceous Transylvanian Basin (Sebeş Formation) of Romania.
Gareth J Dyke, Vremir Mátyás, Alexander W. A. Kellner, Gareth J. Dyke, Naish Darren, Dyke, G.J., Naish, D, Darren Naish, Dyke Gareth J., Mátyás Vremir, Kellner, A, Vremir, M, Kellner Alexander W. A., Alexander W A Kellner   +13 more
core   +1 more source

Ancient hybridization and phylogenetic discordance: Exploring evolutionary complexity in Asteraceae

Applications in Plant Sciences, EarlyView.
Abstract Premise Conflicting phylogenetic signals are common in plant phylogenomics and often reflect evolutionary histories shaped by processes like hybridization, incomplete lineage sorting, and whole‐genome duplication (WGD). We aimed to identify and assess these complex processes in the hyper‐diverse family Asteraceae to offer insight into the ...
Paige A. Ellestad, Erika R. Moore‐Pollard, Carolina M. Siniscalchi, Ramhari Thapa, Linda E. Watson, J. Mauricio Bonifacino, Jennifer R. Mandel   +6 more
wiley   +1 more source

Post Cretaceous/Paleogene boundary recovery of the deep marine ecosystem recorded by benthic foraminiferal morphogroups

Acta Palaeontologica Polonica
The uppermost 2 meters of the Maastrichtian Scaglia Rossa Fm. (Gubbio, Italy) record a notable change in the proportions of morphogroups of deep-water agglutinated foraminifera beginning about 1.4 m below the boundary, where we observe a gradual decrease
Michael A. Kaminski, Syouma Hikmahtiar, Claudia G. Cetean   +2 more
doaj   +1 more source

Výskyt spodnokriedových magmatických hornín medzi Podbrančom a Myjavou [PDF]

Geologické práce. Správy, 2020
Occurrences of magmatic rocks were identifid north of the settlement Belanskovci (part of Myjava town), on the ridge of the elevation point 464 m a. s. l. east of the settlement Podzámok (part of the Podbranč village).
Tamás Csibri, Dušan Plašienka, Rastislav Demko   +2 more
doaj  

First hybodont shark assemblage from the Cretaceous of Malaysia: updated report [PDF]

Research & Knowledge, 2017
A new hybodont assemblage was found in Cretaceous freshwater sediment of Peninsular Malaysia. This is the first discovery of Mesozoic nonmarine fishes from Malaysia. A faunal comparison with the Khorat Group has also been carried out.
Teng Yu He, Masatoshi Sone, Ren Hirayama, Masataka Yoshida, Toshifumi Komatsu, Suchada Khamha, Gilles Cuny   +6 more
doaj   +1 more source

A perspective from the Mesozoic: Evolutionary changes of the mammalian skull and their influence on feeding efficiency and high‐frequency hearing

The Anatomical Record, EarlyView.
Abstract The complex evolutionary history behind modern mammalian chewing performance and hearing function is a result of several changes in the entire skeletomuscular system of the skull and lower jaw. Lately, exciting multifunctional 3D analytical methods and kinematic simulations of feeding functions in both modern and fossil mammals and their ...
Julia A. Schultz
wiley   +1 more source

A Late Cretaceous amber biota from central Myanmar

Nature Communications, 2018
Insect faunas are extremely rare near the latest Cretaceous with a 24-million-year gap spanning from the early Campanian to the early Eocene. Here, we report a unique amber biota from the Upper Cretaceous (uppermost Campanian ~72.1 Ma) of Tilin, central ...
D. Zheng, Su-Chin Chang, V. Perrichot, S. Dutta, A. Rudra, Lin Mu, Ulysses R. Thomson, Sha Li, Qi Zhang, Qingqing Zhang, J. Wong, Jun Wang, He Wang, Yan Fang, Haichun Zhang, Bo Wang   +15 more
semanticscholar   +1 more source

New craniodental materials of Falcarius utahensis (Theropoda: Therizinosauria) reveal patterns of intraspecific variation and cranial evolution in early coelurosaurians

The Anatomical Record, EarlyView.
Abstract Despite documented ecomorphological shifts toward an herbivorous diet in several coelurosaurian lineages, the evolutionary tempo and mode of these changes remain poorly understood, hampered by sparse cranial materials for early representatives of major clades. This is particularly true for Therizinosauria, with representative crania best known
William J. Freimuth, Lindsay E. Zanno
wiley   +1 more source

A New Species of Radula (Radulaceae, Porellales) From Mid‐Cretaceous Kachin Amber

Ecology and Evolution
The liverwort genus Radula, one of the largest genera within the order Porellales, is phylogenetically isolated and widely distributed, with many species thriving as epiphytes in diverse ecosystems. Fossil records of Radula are scarce, particularly those
Xiangbo Song, Wen Ye, Zixi Wang
doaj   +1 more source