Kirk's father and Austin-based artist Randy Kirk produced his own rendering of what the species might have looked like.

Three previously unknown ancient primates identified

Kayentatherium wellesi

Mammal forerunner that reproduced like a reptile sheds light on brain...

A view of the Issole River in southeastern France,

Faster than we thought—sulfurization of organic material

sample of mantle xenolith, rock sections of the lithosphere that get captured by the passing magma and erupted to the surface during the volcanic explosion.

Geologists uncover new clues about largest mass extinction ever

Paleogeographic scenario for the Jiachala Formation. a) Jiachala Formation, b)&c) other trench deposits to the west.

Upper Cretaceous trench deposits of the Neo-Tethyan subduction zone

The Mount Rinjani crater in Lombok, Indonesia.

Lombok quakes not necessarily leading to a big bang

Bannykus resoration

How did alvarezsaurian dinosaurs evolve monodactyl hand?

Xiyunykus

Rare intermediate fossils give researchers insight into evolution of bird-like dinosaur

Location of survey site at rupture across a road near Castelluccio, Italy. The rupture occurred during the third earthquake in the seismic sequence and gives researchers a record of the deformation.

Research into deadly 2016 Italian earthquakes could improve future seismic forecasts

From left to right: Haplocheirus, Xiyunykus, Bannykus, and Shuvuuia. Note the lengthening of the jaws, reduction of the teeth, and changes in the hand and arm.

Two new Chinese dinosaurs discovered

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