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Featured Fossil Archive

 

This page links to past Featured Fossils of all geological time periods.

The Last Featured Fossil...

 

Unidentified stromatoporoid on a horn coral

Fossil Type:

Stromatoporoid

Name:

Unidentified

Formation:

Jeffersonville Limestone

Age:

Eifelian, Middle Devonian

Location:

Falls of the Ohio, Clark Co., Indiana

Notes:

The unusual shape is from the substrate – a large horn coral. Stromatoporoids are found in two common forms – massive, often mound-shaped, and encrusting. The latter form is usually thin (a few cm thick), while massive species may be 30 cm thick.

Date Posted:

August 16, 2017

 

Archived Featured Fossils are now organized by geological time period - youngest to oldest.

Invertebrates

      Micro-fossils          Worms          Arthropods: Non-Trilobite          Trilobites

Brachiopods                    Bryozoans                    Porifera (Sponges) 

Corals:               Rugose                    Tabulate                    Scleractinian

Echinoderms: Crinoids                    Echinoids & Asteroids             Extinct Classes

Mollusks: Bivalves               Cephalopods               Gastropods               Other Mollusks

            Graptolites

Vertebrates

Fish                           Mammals                 Reptiles

 

Plants

Algae                 Ferns & Horsetails / Primitive Plants           Angiosperms & Gymnosperms

 

Trace Fossils       Miscellaneous

Featured Fossil Home Page

 

Created April 13, 2012, updated August 17, 2017