Earth and Environment - Paleontology

Paleontology - Sep 21
Life reconstruction of Euparkeria highlighting the body parts investigated in this study. Illustration: Oliver Demuth. The oblique ankle joint did not allow Euparkeria to assume a fully upright posture as the foot also turns medially when the ankle joint is extended. An ankle joint allowing a more upright posture evolved later independent from the hip structure.
Environment - Sep 16

Summary of major extinction events through time, highlighting the new, Carnian Pluvial Episode at 233 million years ago.

Paleontology - Aug 11

Updated evolutionary tree and biomechanical estimates of feathered dinosaurs and early birds show powered flight may have evolved in these animals at least three different times New research using the most comprehensive study of feathered dinosaurs and early birds has revised the evolutionary relationships of dinosaurs at the origin of birds.

Paleontology - Aug 4

Threatened with extinction despite perfect adaptation

Life Sciences - Aug 27
Life Sciences

Prepared by Megan Whitney with Harvard University and Christian Sidor with the University of Washington and the Burke Museum of Natural History and Culture.

Life Sciences - Aug 6
Life Sciences

Its neck was three times as long as its torso, but had only thirteen extremely elongated vertebrae: "Tanystropheus", a bizarre giraffe-necked reptile which lived 242 million years ago, is a paleontological absurdity. A new study led by the University of Zurich has now shown that the creature lived in water and was surprisingly adaptable.

Earth Sciences - Jul 29
Earth Sciences

Geological evidence suggests the known dinosaur groups diverged early on, supporting the traditional dinosaur family tree.

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