Showing posts with label hadrophyllum. Show all posts
Showing posts with label hadrophyllum. Show all posts

Friday, October 9, 2009

Indiana Button Coral Fossil

The Hadrophyllum orbignyi (Edwards & Haime, 1851) is found in the Speeds Limestone found in Clark County, Indiana. These two fossils are about the size of an American nickel. I sometimes wonder what this little Devonian Period creature looked like when alive. Looking at this fossil sometimes makes me hungry. It reminds me of my grandmother's peanut butter cookies that had this color and texture with a criss-cross pattern pressed into them.
While doing research on a brachiopod fossil from a recent post I came across some really nice websites:
This French website on brachiopods is very well done.
The University of Iowa has some really good brachiopod images. One project they did called "Fossils In My Backyard" is great. it shows the geological map of the state of Iowa and then one can click on a county and see the fossils found there. I did not realize they had so many time periods exposed in their state.
The Alberta Palaeontological Society website is well organized. I was impressed with quality of their sample bulletin and the extensive member's guide. They even published a book on vertebrate fossils entitled, "Guide to Common Vertebrate Fossils from the Cretaceous of Alberta".

Wednesday, April 1, 2009

Devonian Button Coral Hadrophyllum orbignyi

Yesterday's entry showed some recovered pictures from April 2008 KYANA Geological Society quarry visit. Here are two pictures I found on that camera of Devonian button coral that are from that quarry. They are called Hadrophyllum orbignyi (Edwards & Haime, 1851). These were found in the Speed Limestone in Clark County, Indiana. I have also seen them referred to as Hadrophyllum d'orbignyi in older literature. More images of these can be seen here: http://www.kyanageo.org/Fossils/devonian/coral/hadrophyllum-orbignyi.jpg http://www.kyanageo.org/Fossils/devonian/coral/RCL161_Hadrophyllum_orbignyi.jpg http://www.yale.edu/ypmip/taxon/anthozoa/rugosa/37141.html