Sunday, November 30, 2025

Ophioderma egertoni


This image is of Ophioderma egertoni (Broderip, 1840) starfish fossil. Its new name is Palaeocoma milleri (Phillips, 1829). This animal existed in the Cretaceous Period. Fossil were found at Mary Anning's fossil hunting grounds: Lyme Regis, England.

Picture taken at Museo di Geologia e Paleontologia Florence Italy (Università degli Studi di Firenze) in August 2019.

Saturday, November 29, 2025

Hemiaster heberti Echinoid Fossils

This image is of Hemiaster heberti echinoid fossils. These animals existed in the Cretaceous Period. Fossils were found in Thebaid, Egypt.

Picture taken at Museo di Geologia e Paleontologia Florence Italy (Università degli Studi di Firenze) in August 2019.

Friday, November 28, 2025

Crioceras


Here is a picture of a cephalopod Crioceras (d'Orbigny, 1842) fossil at Museo di Geologia e Paleontologia Florence Italy (Università degli Studi di Firenze) in August 2024.  The creature lived during the Cretaceous Period. It was found at Thebaid, Egypt.

Thursday, November 27, 2025

The Florentine Diamond Replica

 

Early this month The New York Times published an article "The Florentine Diamond Resurfaces After 100 Years in Hiding" by Robin Pogrebin. While I write about fossils on this blog, in recent years I go to museums and study the fossils on display. Last year while in Vienna, Austria I visited Naturhistorisches Museum Wien. This world class museum is just too big to see in just one visit so I concentrated mostly on the fossils. When you enter the museum and go to the right it leads you to multiple of rooms of minerals on display. Before you get to the meteorite room there are display cases showing gems and precious items fabricated with minerals.


 

One display that caught me attention was that of "Der Florentiner", a replica of a 137 caret yellow diamond. The diamond has a long history which can be read about on Wikipedia. It was thought lost at fall of the Austro-Hungarian Empire in 1918. As revealed earlier this month, the diamond has been in a bank vault in Canada most of the time since.

 

What an amazing story! 

Wednesday, November 26, 2025

Dolatocrinus Crinod Column Section Fossil

 

This image shows a number of crinoid stem column sections identified as Dolatocrinus (Lyon, 1857)  from the Beechwood Limestone. The fossil dates to the Devonian Period. They were found in Clark County, Indiana USA by Barbara Conkin (1928-2019) who was a local professor of geology. 

Thursday, November 20, 2025

Productella spinulicosta Brachiopod Fossil


This plate contains a number of spiny brachiopods that appear to be Productella spinulicosta (Hall, 1867) in the Jeffersonville Limestone. The fossil dates to the Devonian Period. It was found at Coopers Lane Quarry Clark County, Indiana USA by Barbara Conkin (1928-2019) who was a local professor of geology.


 

Wednesday, November 19, 2025

Amplexus Pyrite Horn Coral

This fossil is a pyritized horn coral. The identification appears to be Amplexus fragilis (White & St. John) of the Coral Ridge fauna, New Providence Shale of Jefferson County, Kentucky. Time period for this specimen is Middle Mississippian (Osagean). It was found by a local geology professor Barbara Conkin years ago.

Tuesday, November 18, 2025

Nummulites granulosa Foraminifera Fossil

 



Here is a picture of a foraminifera Nummulites granulosa fossil at Museo di Geologia e Paleontologia Florence Italy (Università degli Studi di Firenze) in August 2024.  The creature lived during the Paleogene Period. It was found at Roncà, Veneto Italy.

Monday, November 17, 2025

Strombus fortisi Gastropod Fossil

Here is a picture of a gastropod Strombus fortisi (Brongniart, 1823) fossil at Museo di Geologia e Paleontologia Florence Italy (Università degli Studi di Firenze) in August 2024.  The creature lived during the Paleogene Period. It was found at Roncà, Veneto Italy.

Monday, November 3, 2025

Gissocrinus goniodactylus Crinoid Fossil


This image is of a Gissocrinus goniodactylus (Phillips, 1839) crinoid fossil. It was found in the area of Dudley, Scotland. The fossil dates to the Silurian Period.

Picture taken at Museo di Geologia e Paleontologia Florence Italy (Università degli Studi di Firenze) in August 2024.