paleocurrents in sandstone bed of the Tapeats Sandstone. 

BSU's Michael Mohr and UNM's Jordan Anderson, working bed by bed to find and characterize key fossil layers.

ripple marked sandstone feeding facing upstream.

The COVID-19 shutdown has brought about its fair-share of negative news. However, a group of students at The University of New Mexico decided they were not going to sit around, and let the negativity pile up. They were going to do something about...

will reopen Saturday, May 2 with limited operations.

Cambrian Tonto Group exposed near Palisades Canyon in eastern Grand Canyon, USA. Thumbnail image here shows units exposed: PCd-lower Dox Formation of the Mesoproterozoic Unkar Group; Cambrian Tonto Group consists of: Ct-Tapeats Sandstone, Cb-Bright Angel Formation, Cm-Muav Formation, and Cfm-Frenchman Mountain Dolostone (Sixtymile Formation is missing here); DTb-Devonian Temple Butte Formation, Mr-Mississippian Redwall Limestone. Next red cliffs are the Pennsylvanian/Permian Supai Group; the rim of Grand Canyon is the Permian Aubrey Group.

 

Edwin “Eddie” McKee, a geologist who became Chief Naturalist at Grand Canyon Natural Park, wrote many articles and books on Grand Canyon geology. Here he is studying trilobite fossils in the park in 1936.

The history of the Earth and of life on Earth is written in sedimentary rock layers. To understand the history, you must understand the rocks. Sedimentary rock layers of 541- 485 million years old, from the Cambrian Period, provide a record of incredible...

the traditional lower to middle Cambrian boundary across where two major groups of trilobites were thought to go extinct at the same time as a third group appeared. Fred Sundberg with white hat and hand lens identifies a trilobite find. 

The University of New Mexico will reopen both of the University’s golf courses, The UNM Championship Golf Course and the UNM North Golf Course, with limited operations on Saturday, May 2 following new guidelines issued by the New Mexico Department of...