Connecting the environment of the ancient past with the natural and cultural history of yesterday and today.















 

 


Featured Fossil

 

This page features a fossil with details about the specimen, its age,

where it was found, and a nugget of interesting information. Not every

specimen will be perfectly preserved - but all are a marvel of the natural world!

All geological time periods are represented.

 

Cephalolpod Nanno species = Proterovaginoceras belemniforme from Minnesota

Fossil Type:

Cephalopod

Name:

Nanno sp. = Proterovaginoceras belemniforme (Holm)

Formation:

Decorah Shale

Age:

Upper Ordovician

Location:

Sogn, Goodhue Co., Minnesota

Notes:

An endocerid where the siphuncle fills the apex of the shell. Nanno is not a taxonomic name, but a morphologic preservation. It resembles the Mesozoic Belemnites. Anonymous collection. Scale = 2 cm

Date Posted:

February 18, 2017

 

Archived Featured Fossils

Archived images are now arranged in each category by geological time period.

How to Submit a Featured Fossil

Created April 12, 2012