Archive for January, 2019

WFS News: Surface exposure dating with cosmogenic nuclides

@WFS,World Fossil Society,Riffin T Sajeev,Russel T Sajeev Surface exposure dating with cosmogenic nuclides  SUSAN IVY-OCHS & FLORIAN KOBER Eiszeitalter und Gegenwart Quaternary Science Journal,57/1–2,157–189,Hannover 2008 Abstract: In the last decades surface exposure dating using cosmogenic nuclides has emerged as a powerful tool in Quaternary geochronology and landscape evolution studies. Cosmogenic nuclides are produced in rocks and […]

WFS News: An unexpected noncarpellate epigynous flower from the Jurassic of China

@WFS,World Fossil Society,Riffin T Sajeev,Russel T Sajeev Despite the importance of, the great interest in and intensive effort spent on investigating angiosperms, a controversy remains as to when and how this group came into existence. Since the time of Darwin, some scholars have proposed that angiosperms existed before the Cretaceous (Smith et al., 2010; Clarke et […]

WFS News: Trilobite ancestral range in the southern hemisphere reconstructed

@WFS,World Fossil Society,Riffin T Sajeev,Russel T Sajeev The first appearance of trilobites in the fossil record dates to 521 million years ago in the oceans of the Cambrian Period, when the continents were still inhospitable to most life forms. Few groups of animals adapted as successfully as trilobites, which were arthropods that lived on the […]

WFS News:The mysteries of a giant prehistoric marine reptile unlocked with the help of Medical scanner

@WFS,World Fossil Society,Riffin T Sajeev,Russel T Sajeev Descriptive anatomy of the largest known specimen of Protoichthyosaurus prostaxalis (Reptilia: Ichthyosauria) including computed tomography and digital reconstruction of a three-dimensional skull Ichthyosaurs were a highly successful group of predatory marine reptiles that appeared in the late Early Triassic and went extinct in the early Late Cretaceous (Fischer et al., […]

WFS News: Introduction to dating glacial sediments

@WFS,World Fossil Society,Riffin T Sajeev,Russel T Sajeev Many methods of dating glacial sediments As glacial geologists, some of the biggest questions that we’d like to answer are not only how large former ice sheets were, but also how fast did the recede and how quickly did they thin? This information is vital for numerical models, […]