Results 291 to 300 of about 208,933 (390)
Evolutionary implications of a deep‐time perspective on insect pollination
ABSTRACT Plant pollination by insects represents one of the most transformative and iconic ecological relationships in the natural world. Despite tens of thousands of papers, as well as numerous books, on pollination biology published over the past 200 years, most studies focused on the fossil record of pollinating insects have only been published in ...
David Peris+10 more
wiley +1 more source
Re‐make, re‐model: evolution and development of vertebrate cranial lateral lines
ABSTRACT Lateral lines are placodally derived mechanosensory systems on the heads and trunks of many aquatic vertebrates. There is evidence of lateral lines in the earliest known vertebrate fossils, and they exist in organisms with widely different craniofacial morphologies – including the presence or absence of jaws, external or internal nostrils, and
Vishruth Venkataraman+3 more
wiley +1 more source
Anthropocene angst: Authentic geology and stratigraphic sincerity. [PDF]
Damianos A.
europepmc +1 more source
Key Points A ten‐step sequential leaching procedure was applied to dissolve carbonate samples, with 10% of the sample mass dissolved in each step. Calcite dissolves preferentially compared with dolomite. Strontium and barium concentrations released in each step are proportional to the dissolved calcite‐to‐dolomite ratio.
Kaiyu Wu+3 more
wiley +1 more source
Multidisciplinary evidence for synchroneity between Ontong Java Nui volcanism and early Aptian oceanic anoxic event 1a. [PDF]
Matsumoto H+8 more
europepmc +1 more source
Bipedalism or bipedalisms: The os coxae of StW 573
There has been a long debate about the possibility of multiple contemporaneous species of Australopithecus in both eastern and southern Africa, potentially exhibiting different forms of bipedal locomotion. Here, we describe the previously unreported morphology of the os coxae in the 3.67 Ma Australopithecus prometheus StW 573 from Sterkfontein Member 2
Robin Crompton+15 more
wiley +1 more source
Episodic reef growth in the Last Interglacial driven by competing influence of polar ice sheets to sea level rise. [PDF]
Vyverberg K+8 more
europepmc +1 more source