Melonechinus multipora Sea Urchin Fossil

This image is of a Melonechinus multipora (Norwood & Owen, 1846) sea urchin fossil on display at Natural History Museum Vienna (Naturhistorisches Museum Wien) (August 2024). It dates to the Carboniferous Period (about 340 million years ago). The fossil was found in St. Louis, Missouri, USA. 

Archaeocidaris Fossil from Texas

This image is of an Archaeocidaris sp (McCoy, 1844) sea urchin fossil on display at Natural History Museum Vienna (Naturhistorisches Museum Wien) (August 2024). It dates to the Late Carboniferous Period (about 290 million years ago). The fossil was found in Brown County Texas USA.

Archaeocidaris Sea Urchin Fossil

This image is of an Archaeocidaris sea urchin fossil. The animal existed in the Carboniferous Period. Fossil was discovered in Brown County Texas, USA. Fossil was on display at the Natural History Museum Vienna (Naturhistorisches Museum Wien) on August 2024.

I posted another specimen found at this locality in 2017 on display at Mace Brown Museum of Natural History is located at the College of Charleston South Carolina USA.

Echinocorys sulcatus Fossil

 

Here is a picture of an Echinocorys sulcatus (Goldfuss, 1826) echinoderm fossil found in Haidhof near Ernstbrunn Austria. The fossil dates to the Paleocene Epoch. Fossil was on display at the Natural History Museum Vienna (Naturhistorisches Museum Wien) on August 2024.

Conoclypus Sea Urchin Fossils

Here are two pictures of a Conoclypus (Agassiz, 1839) echinoderm fossil found in Bad Häring, Tyrol, Austria. The fossil dates to the Miocene Epoch, Oligocene Period. Fossils were on display at the Natural History Museum Vienna (Naturhistorisches Museum Wien) on August 2024.

Tylocidaris clavigera Sea Urchin Fossil

Tylocidaris clavigera (Mantell, 1822) cast of a sea urchin fossil found in the Coniacian of the White Chalk subgroup in England.  The creature existed in the Cretaceous Period (Late Turonian to Santonian).  Cast is on display at the Smithsonian National Museum of Natural History as of June 2023.

The genus was named by Pomel in 1883.

I photographed this same specimen in 2010 and posted about it. It is interesting how camera technology as changed. My cell phone picture taken in 2023 is far from perfect. I might start letting it save the RAW images and see how they compare.

https://louisvillefossils.blogspot.com/2010/08/tylocidaris-clavigera.html

Echinocorys Echinoderm Fossil

This image is of a sea urchin fossil called Echinocorys.  The shell once consisted of calcite but has since been replaced by crystalline silica. This animal lived in the Cretaceous Period. The fossil was found at Sidmouth, Devon, England.

This specimen was on display August 2016 in Natural History Museum of London, England.

Merry Fossil Christmas 2017

This year's Christmas greeting image was created with specimens from two locations.

The star (thin section of crinoid stem), trunk (eroded crinoid stem), circular ornament (button coral) and drop shaped ornament (anchor crinoid stem) were obtained from the Devonian Period Jeffersonville/Beechwood/Speed Limestone of Clark County, Indiana USA. The anchor crinoid is a Ancyrocrinus sp. found in the Beechwood Limestone and the button coral is a Hadrophyllum orbignyi from the Speed Limestone.

The tree portion is an Atlantic Auger gastropod shell (Terebra dislocata) and the small fragment ornament is a broken piece of a sea urchin. Both of these specimens were found at Folly Beach near Charleston South Carolina, USA.


To visitors of this blog, I wish you a Merry Christmas and hope the new year brings you new finds in search for fossils in the world around you.

Archaeocidaris Sea Urchin Fossil

This image is of an Archaeocidaris sp sea urchin fossil on display at Mace Brown Museum of Natural History (August 2017). It dates to the Late Carboniferous Period (about 290 million years ago). The fossil was found in Brown County Texas USA.

The Mace Brown Museum of Natural History is located at the College of Charleston, 202 Calhoun Street, 2nd Floor, Charleston, South Carolina 29424.

Learn more at their blog: http://blogs.cofc.edu/macebrownmuseum/

Diademopsis bowerbanki Sea Urchin Fossil

This image is of the Diademopsis bowerbanki sea urchin fossil. It was found in the Lower Lias of Lyme Regis England. The Blue Lias is in the bottom 32 meters of blue-gray limestone. This animal lived during the Lower Jurassic Period.

Fossil on display at the Lyme Regis Museum in England as of August 2016.

Learn more at www.lymeregismuseum.co.uk

Clypeus plotii Echinoid Fossil

While visiting the Gallery of Natural History at the Arizona Historical Society Museum at Papago Park (1300 N. College Ave, Tempe Arizona 85281) I saw fossil specimen (AHS-NH#9854) Clypeus plotii (Leske, 1778) sea urchin fossil. This creature existed in the Jurassic Period (Bajocian to Oxfordian). They were found in what is now Europe and North Africa.

Images of museum specimen taken October 2014.

Source to refer to:
http://www.nhm.ac.uk/research-curation/research/projects/echinoid-directory/taxa/taxon.jsp?id=557

Sea Urchin with Spines

Here is a picture of a spiny echinoid sea urchin at the Museo di Paleontologia at Sapienza University of Rome Italy.

Image taken in June 2014.

Petalobrissus rawdahensis Sea Urchin Fossil

This picture is of the Petalobrissus rawdahensis (Smith, 1995) sea urchin fossil. It existed in the Upper Cretaceous Period (Maastrichtian) and was found in Omán (Jebel Rawdah). Specimen is about 1.5 cm in diameter.

Thanks to Herb for letting me photograph it.

Faujasia eccentripora Sea Urchin Fossil

This picture is of the Faujasia eccentripora (Lees, 1928) sea urchin fossil. It existed in the Upper Cretaceous Period (Maastrichtian) and was found in Omán (Jebel Rawdah). Specimen is about 2 cm in diameter.

Thanks to Herb for letting me photograph it.

Salenia prestensis Sea Urchin Fossils

This picture is of several Salenia prestensis (Desor) sea urchin fossils. They existed in the Cretaceous Period and was found in Spain (Morella or Castellón). Specimens range in size to about 75 mm to 2 cm in diameter.

Thanks to Herb for letting me photograph it.

Echinlampas leymeriei Echinoid Fossil

This picture is of the Echinlampas leymeriei (Cotteau, 1863) sea urchin fossil. It existed in the Eocene Period and was found in Spain (Huesca). Specimen is about 3.5 cm long.

Thanks to Herb for letting me photograph it.

Pliotoxaster paquieiri Echinoid Fossil

This picture is of the Pliotoxaster paquieiri (Lamber, 1919) sea urchin fossil. It existed in the Cretaceous Period and was found in Spain (Allepuz [Teruel]). Specimen is about 3.1 cm wide.

Thanks to Herb for letting me photograph it.

Unidentified Sea Urchin Fossil

This unidentified sea urchin fossil moved along the seafloor in the Mississippian Period. This fossil is on display on the first floor of the Indiana State Museum as of May 2012. More than likely it was found around Crawfordsville, Indiana. That is a some beautiful 3-D prep work!

Maybe it is a Lepidesthes colletti named by White in 1878. See this specimen at the The Natural History Museum web site.

Learn more about the Indiana State Museum at their web site.

Sea Urchin Fossil from Mammoth Cave

The state of Kentucky is famous for longest known cave system in the world called Mammoth Cave.  The cave is thought to have begun forming about 10 million years ago.  Located in Edmonson County, the cave system has over 350 miles of surveyed passages.  A national park preserves the cave for visitors to explore and enjoy.  Visit their web site as this link.

This sea urchin fossil was found there and has been identified as a Melonechinus indianensis from the Mississippian Period.  The stratigraphy found at Mammoth Cave are: Girkin Formation, St. Genevieve Limestone and St. Louis Limestone.  Other fossils found at the cave include shark teeth, blastoids, crinoids, horn corals, brachiopods, and snails.  Since it is a national park, collecting is prohibited!

The fossil pictured in this post was on display in 2010 at the Smithsonian National Museum of Natural History.

Melonites multipora Sea Urchin

The Melonites multipora sea urchin fossil found in St. Louis, Missouri.  The creature existed in the Mississippian Period.  It was on display at the Smithsonian Museum of Natural History (August 2010).  The description said it was once the size of grapefruit before getting flattened during fossilization.