The Neoproterozoic interval of "hidden" evolution refers to a gap of unknown duration between the time when animals first evolved (uncertain) and the oldest known fossil or geochemical evidence of ...

Most of you know that I'm a big fat nerd when it comes to deep-marine turbidity currents* and the sedimentary deposits they create - turbidites (e.g., here, here, here, and here). In fact, my current ...

The Neoproterozoic Noonday Dolomite (Death Valley, USA), a post-glacial cap carbonate, contains closely packed, meter-long, cm-wide, tube-like structures that define the vertical accretion direction.

Scientists have been mystified as to why animals are missing in much of the fossil record. Researchers have now developed a new method to determine if animals really were absent during certain ...

The Cambrian "explosion" of multicellular animal life is one of the most significant evolutionary events in Earth's history. But what was it that jolted the Earth system enough to prompt the evolution ...