Paul Selden

Sep 8, 2024 | nature.com | Richard J. Knecht |Jacob S. Benner |Anshuman Swain |Lauren Azevedo-Schmidt |Michael S. Engel |Paul Selden | +2 more

AbstractMuch of what we know about terrestrial life during the Carboniferous Period comes from Middle Pennsylvanian (~315–307 Mya) Coal Measures deposited in low-lying wetland environments1,2,3,4,5. We know relatively little about terrestrial ecosystems from the Early Pennsylvanian, which was a critical interval for the diversification of insects, arachnids, tetrapods, and seed plants6,7,8,9,10.

May 17, 2024 | fotos.europapress.es | Paul Selden

Código: 5967061 Fecha: 17/05/2024 Dimensiones: 782 x 524 (0.16MB) Fotos del Tema: 1 Pie de Foto: Douglassarachne acanthopoda fosilizada, conocida por sus patas espinosas con armadura, podría parecerse a las arañas recolectoras modernas, pero con un plan corporal más experimental.

Jul 31, 2023 | frontiersin.org | Ludwig Maximilian |Czech Academy |Sylvain Charbonnier |Paul Selden

IntroductionEuchelicerata is a successful clade of arthropods including Xiphosura, Chasmataspidida, Eurypterida, and Arachnida. Xiphosura is a group with extant representatives, which has an extensive fossil record dating back to the Ordovician (Rudkin et al., 2008; van Roy et al., 2015; Lamsdell et al., 2023). The earliest described xiphosuran fossil remains come from the Williams member of the Stone Mountain formation of Manitoba, Canada which dates to the latest Ordovician at c.