FossilsForSale.com presented by EXTINCTIONS Inc.

SCULPTED STONE - THE BEST OF THE BEST \| EXTINCTIONS.COM \| FOSSIL.NET MUSEUM
Dinosaurs \| NatureStore \| DinoStore \| FossilAuction \| Trilobites \| AmberCompany
FossilFish \| SharkTeeth \| FossilPlants \| Crinoids \| WholesaleFossils

To Order Toll Free Call 1-877-EXTINCT

Saturday January 18, 2025 at 6:32:59 AM (EST)

FossilsForSale.com ARCHIVES

Search:

TEN Different Online Fossil Catalogs!
1107 Individual Fossil Specimens!

Site Map

Recent Catalog Updates

Dinosaurs *

- Dinosaur Teeth *

- Dinosaur Claws *

- Dinosaur Eggs *

- Dinosaur Tracks *

- Dinosaur Bones *

Keichousaurs

Mosasaurs

Crocs / Gators

Turtles

Birds

Shark Teeth *

Fossil Fish *

Cave Bears

Mammoths

Oreodonts

Bison

Other Vertebrates

Trilobites *

Eurypterids

Crabs

Shrimp

Lobsters

Fossil Insects

Insects in Amber *

Other Arthropods

Crinoids *

Cystoids

Blastoids

Echinoids

Starfish

Other Echinoderms

Ammonites

Other Cephalopods

Brachiopods

Gastropods

Bivalves

Corals

Sponges

Bryozoans

Other Invertebrates

Fossil Plants *

- Leaves *

- Ferns *

- Cones *

- Flowers *

- Petrified Wood *

Amber (Fossil Sap) *

Stromatolite

Coins / Currency

Books

Antiques *

Sculpted Stone

Replicas

Meteorites

Minerals

Detailed Stromatolite with Fabulous Structure
STROMATOLITE • UNITED STATES
Stock Number XISTR231
EXTINCTIONS Choice

Name:   Collenia undosa
Age:  Precambrian
Formation:  Biwabik Formation
Location:  St. Louis County, Minnesota
Size:  Slab is 6.2 inches tall
This specimen is not for sale
Click here for similar specimens that are for sale

Here is a large specimen of a stromatolite from the Precambrian of Minnesota. Authorities believe that stromatolites were formed by masses of green or blue-green algae, or ''cyanobacteria''. This stromatolite is from the Biwabik Formation and was found at the Mary Ellen Mine. It is believed that this stromatolite is 2.1 to 2.7 billion years old! This stromatolite slab has been highly polished to reveal the interesting pattern of the stromatolite structure. The muted green color and distinct patterns make for a striking display. This is a very detailed slice of an extremely old stromatolite.