Results 31 to 40 of about 535,744 (290)

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

Spatiotemporal Characteristics of and Factors Influencing CO₂ Concentration During 2010–2023 in China

Remote Sensing
Human activities at unprecedented levels have exacerbated the greenhouse effect and escalated the frequency of extreme weather. In response, the Chinese government has pledged to reach “carbon peak” by 2030 and achieve “carbon neutrality” by 2060 ...
Jiayi Zou, Huaixu Jiang, Tianshun Yang, Liqing Wu, Qi Zhang, Jianjun Xu   +5 more
doaj   +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

Seasonal variation of underwater sound propagation in the Beibu Gulf

Frontiers in Marine Science
Variations in the underwater sound speed significantly influence sound propagation in the ocean, thereby impacting both underwater navigation systems and a substantial portion of marine organisms reliant on sound. This study utilizes cruise data from the
Feihong Zeng, Feihong Zeng, Lingling Xie, Lingling Xie, Lingling Xie, Mingming Li, Mingming Li, Mingming Li, Qiang Li, Qiang Li, Qiang Li, Simeng Liu, Simeng Liu   +12 more
doaj   +1 more source

Widespread distribution of large silesaurids evidenced by a new record from the Middle Triassic of southwest Gondwana

The Anatomical Record, EarlyView.
The largest silesaurid known from South America is described here, demonstrating that silesaurids reached large body sizes in southwestern Gondwana. This discovery further underscores the widespread geographic distribution and temporal persistence of large silesaurids across Pangea, despite faunal turnovers and environmental events such as the Carnian ...
Rodrigo Temp Müller
wiley   +1 more source

Between the Devil and the Deep Blue Sea: The Role of the Amundsen Sea Continental Shelf in Exchanges Between Ocean and Ice Shelves

, 2016
The Amundsen Sea is a key region of Antarctica where ocean, atmosphere, sea ice, and ice sheet interact. For much of Antarctica, the relatively warm water of the open Southern Ocean (a few degrees above freezing) does not reach the Antarctic continental ...
K. Heywood, L. Biddle, L. Boehme, P. Dutrieux, M. Fedak, A. Jenkins, R. W. Jones, J. Kaiser, H. Mallett, A. N. Garabato, I. Renfrew, D. Stevens, B. Webber   +12 more
semanticscholar   +1 more source

Impacts of Intraseasonal Oscillations on Tropical Cyclone Rapid Intensification in the Northwestern Pacific During Winter

Remote Sensing
In winter, the northwestern Pacific (NWP) is affected by two atmospheric intraseasonal oscillations (ISOs), the Madden–Julian oscillation (MJO) and the quasi-biweekly oscillation (QBWO).
Chaodong Chen, Zheng Ling, Hailun He, Tianyu Zhang   +3 more
doaj   +1 more source

Contaminant Characteristics and Influencing Factors of Heavy Metals in Seawater and Sediments in a Typical Mariculture Bay in South China

Frontiers in Marine Science, 2022
Heavy metal pollution in the mariculture areas is of considerable attention due to its potential ecological effects and public concern for seafood safety.
Qibin Lao, Qibin Lao, Qibin Lao, Shangjun Cai, Shangjun Cai, Shangjun Cai, Peng Huang, Peng Huang, Peng Huang, Fajin Chen, Fajin Chen, Fajin Chen, Qizhong Su, Xuetie Lei, Xin Zhou, Xin Zhou, Xin Zhou, Chunqing Chen, Chunqing Chen, Chunqing Chen, Qingmei Zhu, Qingmei Zhu, Qingmei Zhu, Xuan Lu, Xuan Lu, Xuan Lu, Guoqiang Liu, Guoqiang Liu   +27 more
doaj   +1 more source

Description of large, well‐preserved Enchodus specimens from the Bearpaw Formation of Alberta, Canada

The Anatomical Record, EarlyView.
Abstract Fishes of the genus Enchodus were abundant and cosmopolitan in the Late Cretaceous, but are primarily known from isolated remains in Canada. Four well‐preserved fish skulls were recovered in recent years from ammolite mines sampling the Bearpaw Formation of Southern Alberta, and are here referred to Enchodus petrosus Cope, 1874.
Luke E. Nelson, Alison M. Murray, Donald B. Brinkman   +2 more
wiley   +1 more source

Gulf Stream Ring Water Intrusion on the Mid-Atlantic Bight Continental Shelf Break Affects Microbially Driven Carbon Cycling

Frontiers in Marine Science, 2019
Warm core, anticyclonic rings that spin off from the Gulf Stream circulate through the region directly offshore of the Mid-Atlantic Bight. If a warm core ring reaches the continental shelf break, its warm, highly saline water may subduct under cooler ...
Adrienne Hoarfrost, John Paul Balmonte, Sherif Ghobrial, Kai Ziervogel, John Bane, Glen Gawarkiewicz, Carol Arnosti   +6 more
doaj   +1 more source