“K-T”

 

"K-T"

“K-T”

The Cretacious-Tertiary Boundary
Sixty-five million years ago, a daily struggle occurs in the midst of the world-changing event that would result in the demise of the non-avian dinosaurs and the rise of our own lineage of mammals. The layer of rock demarkating the end of the Cretaceous and beginning of the Tertiary is known by geologists as the “K-T Boundary.” The mammals in this case are “cynodonts” – our ancestors in the late Cretaceous. This took me three weeks to create, using Blender and GIMP software packages.

 

"K-T" Detail

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“Echinodermata”

 

"Echinodermata"“Echinodermata”

Phylogeny of the echinoderms
A cladogram in the sand depicts the evolutionary relationships between the five classes of echinoderms: asteroidea (sea stars), ophiuroidia (brittle stars), echinoidea (sea urchins and sand dollars), holothuroidea (sea cucumbers), and crinoidea (sea lillies and feathers).

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