(LINKS TO PAST FOSSIL FRIDAYS)
Community College (LRCCD)
Geology & Earth
Science Instructor: Arthur
Reed, P.G.
Happy
Fossil Friday!
Friday March 5, 2021
Most
fossil deposits represent accumulations over extended periods of time. It is
rare to have a “snapshot” in time recorded but that is exactly what is
preserved at Ashfall Fossil Beds. Wildlife flourished approximately 12 million
years ago in northeast Nebraska...until
quickly buried by volcanic ash!
Barrel-bodied
rhinos wallowed in a shallow waterhole while a bone-crushing dog startled a
group of three-toed horses in the distance.
A small lizard struggled to free itself from the beak of a crowned
crane. A normal day on the Nebraska
savanna turned bleak as disaster struck.
Large
amount of ash spewed high into the atmosphere from a super volcanic eruption
more than 1000 miles away started falling from the sky. Small animals such as birds and turtle died
immediately from ash inhalation. Medium
and large-bodied animals suffered for extended periods of time before they
perished and were slowly buried with drifting ash. Ashfall Fossil Beds preserves a rare
occurrence in which animals are preserved in their three-dimensional death
poses. Scientists continue to learn more
about this tragic event each year at this in situ paleontology park.