Answer Monday!

This past week on Fossil Friday, I gave you a present from our Fossil Friend, Dan Coleman. As you recall, Dan had this to say about the Fossil...

"It is from the early Mississippian Buford limestone found in south-central Indiana. It was collected in a creek bed where tons of specimens wash out of the rock layers.This was/is in Lawrence County, Indiana, home of the famous limestone quarries that built many buildings and monuments, including the Empire State Building. Many different fossils and geodes are found here, including crinoids, brachiopods, and..."

and what? I asked!

"This specimen, I believe, is a horn coral geode. The exterior has eroded away, leaving the interior anatomy, which has been crystallized with calcite. What I found very interesting about this, and other specimens I have, is that it shows bilateral symmetry rather than radial."

What do you think? Do you think Dan was right?

Minda Berbeco
Short Bio

Minda Berbeco is the former Programs and Policy Director at NCSE.

If you support accurate science education, support NCSE.

National Center for Science Education (NCSE) is a 501(c)(3) tax-exempt organization, EIN 11-2656357. NCSE is supported by individuals, foundations, and scientific societies. Review our annual audited financial statements and IRS 990 forms at GuideStar.

© Copyright 2020 National Center for Science Education. Privacy Policy and Disclaimer | Disclosures Required by State Law