Tuesday, December 11, 2018

Mercenaria Clam Fossil


This image is of a Mercenaria sp. clam fossil.  The fossil dates to the Jurassic Period (210-145 million years ago). The specimen was found in Mahajunga, Madagascar. It was on display at the Indiana University Southeast (IUS)
campus, first floor of Sciences Building as part of Glenn M. Mason collection. Image taken November 2018.

Monday, December 10, 2018

Iguanodontid Dinosaur Track Cast


This image is of an iguanodontid dinosaur track cast dated Cretaceous Period (100 million years ago). The track was found in Dinosaur Ridge, Colorado, USA. It was on display at the Indiana University Southeast (IUS) campus, first floor of Sciences Building as part of Glenn M. Mason collection. Image taken November 2018.

Sunday, December 9, 2018

Bryozoan Fossil


This image is of polypora (bryozoan) fossil dated between Ordovician to Permian Periods (505-245 million years ago). It was on display at the Indiana University Southeast (IUS) campus, first floor of Sciences Building. Image taken November 2018.


Saturday, December 8, 2018

In Memory of Dr. Glenn Mason


Earlier last month (November 7, 2018), Dr. Glenn Mason passed away. He was a long time geoscience professor at Indiana University Southeast (IUS) New Albany, Indiana, USA. In 2009, I met Dr. Mason while taking classes at the school. On a Saturday in July of that year, he was kind enough to give me and a small group of geology enthusiasts a tour of the Geosciences department at IUS. Glenn was especially proud of the display cabinets in the hallway outside his office that had a number of minerals, rocks, and fossils. Hopefully, IUS will retain these displays as a memory to Dr. Mason and his contributions to geological science and the local community.


Later some us were able to donate some specimens for these cabinets.




Dr. Mason's office door decorated with dinosaur imagery which was a popular class he taught at the school.

Friday, December 7, 2018

Placenticeras intercalare Ammonite Fossil


This ammonite fossil was on display at the American Museum of Natural History (AMNH) in New York city in July 2018. The ammonite fossil is named Placenticeras intercalare. It was found in the Bearpaw Formation, Lethbridge, Alberta, Canada and dates to the Cretaceous Period (75 million years ago). Accession number is Fl-56701. Donated by Korite International and Canada Fossils Ltd.


The ammonite fossil shell is now iridescent caused by being exposed to high pressures and temperatures. The marine creature existed in the Western Interior Seaway that covered the middle of what is now the North American continent. The seaway existed from about 75-65 million years ago.


Learn more about the museum at https://www.amnh.org/



Thursday, December 6, 2018

Ameropiltonia lauradanae and Comptonaspis swallowi Trilobite Fossils


This trilobite fossils were on display at the American Museum of Natural History (AMNH) in New York city in July 2018. The trilobite fossils are named Ameropiltonia lauradanae (right) and Comptonaspis swallowi (left). It was found in the Chouteau Formation of Saline County, Missouri, USA and date to the Mississippian Period. Accession number is Fl-80136. Donated by Andy Secher.

Learn more about the museum at https://www.amnh.org/

Their trilobite exhibit was made possible by Dr. Martin Shugar, M.D. and Andy Secher who are also editors for the AMNH trilobite web site.

Wednesday, December 5, 2018

Drotops armatus Trilobite Fossil


This trilobite fossil was on display at the American Museum of Natural History (AMNH) in New York city in July 2018. The trilobite fossil is named Drotops armatus. It was found in the Atlas Mountains of Morocco and dates to the Devonian Period. Accession number is Fl-84362. Donated by Andy Secher.

Learn more about the museum at https://www.amnh.org/

Their trilobite exhibit was made possible by Dr. Martin Shugar, M.D. and Andy Secher who are also editors for the AMNH trilobite web site.

Tuesday, December 4, 2018

Asaphus expansus Trilobite Fossil


This trilobite fossil was on display at the American Museum of Natural History (AMNH) in New York city in July 2018. The trilobite fossil is named Asaphus expansus. It was found in the Wolchow River of St. Petersburg, Russia and dates to the Ordovician Period.


Their trilobite exhibit was made possible by Dr. Martin Shugar, M.D. and Andy Secher who are also editors for the AMNH trilobite web site.

Monday, December 3, 2018

Dicranurus hamatus elegans Trilobite Fossil


This trilobite fossil was on display at the American Museum of Natural History (AMNH) in New York city in July 2018. The trilobite fossil is named Dicranurus hamatus elegans. It was found in the Haragan Formation, Coal County of Oklahoma, USA and dates to the Devonian Period. Accession number is Fl-83818. Donated by Andy Secher.

Learn more about the museum at https://www.amnh.org/


Their trilobite exhibit was made possible by Dr. Martin Shugar, M.D. and Andy Secher who are also editors for the AMNH trilobite web site.

Sunday, December 2, 2018

Dicranurus monstrosus Trilobite Fossil


This trilobite fossil was on display at the American Museum of Natural History (AMNH) in New York city in July 2018. The trilobite fossil is named Dicranurus monstrosus. It was found in the Megrane Formation, Atlas Mountains of Morocco and dates to the Devonian Period. Accession number is Fl-83817. Donated by Martin Shugar, M.D.

Learn more about the museum at https://www.amnh.org/


Their trilobite exhibit was made possible by Dr. Martin Shugar, M.D. and Andy Secher who are also editors for the AMNH trilobite web site.

Saturday, December 1, 2018

Walliserops trifurcatus Trilobite Fossil


This trilobite fossil was on display at the American Museum of Natural History (AMNH) in New York city in July 2018. The trilobite fossil is named Walliserops trifurcatus. It was found in the Foum Zguid of Morocco and dates to the Devonian Period. Accession number is Fl-55553.

Learn more about the museum at https://www.amnh.org/

Their trilobite exhibit was made possible by Dr. Martin Shugar, M.D. and Andy Secher who are also editors for the AMNH trilobite web site.

Friday, November 30, 2018

Spathacalymene nasuta Trilobite Fossil


This trilobite fossil was on display at the American Museum of Natural History (AMNH) in New York city in July 2018. The trilobite fossil is named Spathacalymene nasuta. It was found in the Osgood Formation of Ripley County Indiana, USA and dates to the Silurian Period. Accession number is Fl-4360. Donated by Jason Cooper.

The museum's trilobite exhibit was made possible by Dr. Martin Shugar, M.D. and Andy Secher who also edit the AMNH trilobite web site.

I have found part of one these back in 2011. The Osgood Formation is interesting as some of it's fossils are a honey color. https://louisvillefossils.blogspot.com/2011/10/spathacalymene-nasuta-trilobite.html


Thursday, November 29, 2018

Xenasaphus devexus Trilobite Fossils


This trilobite fossil was on display at the American Museum of Natural History (AMNH) in New York city in July 2018. The trilobite fossil is named Xenasaphus devexus. It was found in the Wolchow River of St. Petersburg, Russia and dates to the Ordovician Period.


Their trilobite exhibit was made possible by Dr. Martin Shugar, M.D. and Andy Secher who are also editors for the AMNH trilobite web site.


Wednesday, November 28, 2018

Arctinurus boltoni Trilobite Fossil


This trilobite fossil was on display at the American Museum of Natural History (AMNH) in New York city in July 2018. The trilobite fossil is named Arctinurus boltoni. It was found in the Rochester Shale of Middleport, New York, USA and dates to the Silurian Period. Accession number is Fl-78841. Donated by Fred Barber and Ray Meyer.

The museum's trilobite exhibit was made possible by Dr. Martin Shugar, M.D. and Andy Secher who are also editors for the AMNH trilobite web site.

Tuesday, November 27, 2018

Ceraurus pleurexanthemus and Flexicalymene senaria Trilobite Fossils


These trilobite fossils were on display at the American Museum of Natural History (AMNH) in New York city in July 2018. The trilobite fossils are named Ceraurus pleurexanthemus and Flexicalymene senaria. They were found in the Rust Formation of Herkimer County, New York, USA and date to the Ordovician Period. Accession number is Fl-84361. Donated by the Jason Cooper.

The museum's trilobite exhibit was made possible by Dr. Martin Shugar, M.D. and Andy Secher who also edit the AMNH trilobite web site.

Monday, November 26, 2018

Cybele bellatula Trilobite Fossil


This trilobite fossil was on display at the American Museum of Natural History (AMNH) in New York city in July 2018. The trilobite fossil is named Cybele bellatula. It was found in the Wolchow River of St. Petersburg, Russia and dates to the Ordovician Period. Accession number is Fl-78841. Donated by the family of James Kaste.

Their trilobite exhibit was made possible by Dr. Martin Shugar, M.D. and Andy Secher who are also editors for the AMNH trilobite web site.



Sunday, November 25, 2018

Olenoides serratus Trilobite Fossil



This trilobite fossil was on display at the American Museum of Natural History (AMNH) in New York city in July 2018. The trilobite fossil is named Olenoides serratus. It was found in the Burgess Shale of British Columbia, Canada and dates to the Cambrian Period. Accession number is Fl-22506.

Learn more about the museum at https://www.amnh.org/

Their trilobite exhibit was made possible by Dr. Martin Shugar, M.D. and Andy Secher who are also editors for the AMNH trilobite web site.

Saturday, November 24, 2018

Paradoxides gracilis Trilobite Fossil


I would like to dedicate this blog posting to the memory of Dr. Riccardo Levi-Setti, a noted trilobite researcher who died on November 8, 2018. He is known for the 1975 book Trilobites and research into their eyes.

This trilobite fossil was on display at the American Museum of Natural History (AMNH) in New York city in July 2018. The trilobite fossil is named Paradoxides gracilis. It was found in the Atlas Mountains of Morocco and dates to the Cambrian Period. Accession number is Fl-80134 and was donated by Martin Shugar M.D.

Learn more about the museum at https://www.amnh.org/

Their trilobite exhibit was made possible by Dr. Martin Shugar, M.D. and Andy Secher who are also editors for the AMNH trilobite web site.

Friday, November 23, 2018

Paraceraurus exsul Trilobite Fossil


I visited the American Museum of Natural History (AMNH) in New York city in July 2018. In the Grand Gallery was a trilobite display case with world-class specimens. This trilobite fossil was in the Ordovician section and named Paraceraurus exsul . It was found in the Asery Formation of St. Petersburg, Russia. Accession number is Fl-74833 and was donated by the family of James Kaste.

Learn more about the museum at https://www.amnh.org/

Their trilobite exhibit was made possible by Dr. Martin Shugar, M.D. and Andy Secher who are also editors for the AMNH trilobite web site.

Thursday, November 22, 2018

Turkey or Dinosaur for Thanksgiving?


After eating a Thanksgiving meal (above image wish bone of dinner's main dish), I came across an article in the Washington Post about how turkeys are related to dinosaurs. About 250 million years ago (mya), the group Archosauria tree split between Pseudosuchia (ancestors of the crocodile) and Dinosauria (eoraptor),then at 240 mya the tree split again to Saurischia, Theropoda (225 mya), Tetanurae (190 mya), Maniraptora (180 mya) to today's modern birds (Avialae).

Watch the video below, as it will explain how modern birds with limbs with 3 digits, wishbones and hollow bones relate today's birds with the dinosaurs of the past.



If it does not show up it is at link: https://www.youtube.com/watch?time_continue=1&v=gQJHuG1Byj0

Happy Thanksgiving!

Wednesday, November 21, 2018

Spiny Unidentified Brachiopod Fossil


Note, I originally posted this as a snail fossil but now it is thought to be some sort of brachiopod. Spiny Platyceras gastropod unidentified brachiopod fossil found in Scott County, Indiana USA. Fossils discovered in New Providence Formation and it dates to Mississippian Period.

Thanks to Kenny for the image.

Tuesday, November 20, 2018

Cladochonus Coral Fossil on Crinoid Stems


Cladochonus coral fossil on crinoid stems found in Scott County, Indiana USA. Fossils found in New Providence Formation and it dates to Mississippian Period.

Thanks to Kenny for the images.

Monday, November 19, 2018

Agaricocrinus Crinoid Calyx Fossil


Agaricocrinus crinoid calyx fossil found in Scott County, Indiana USA. Crinoid found New Providence Formation and it dates to Mississippian Period.



Thanks to Kenny for images.

Sunday, November 18, 2018

Modern Day Crinoids



In July 2018, I visited the American Museum of Natural History in New York City, USA. While there I came across the Hall of Biodiversity and the variety of preserved crinoids. First image is a Metacrinus rotundus crinoid found in the Pacific Ocean. The second crinoid is an Antedon sp. found near Misaki, Japan.
This last crinoid is Metacrinus rotundus crinoid found in the Pacific Ocean.

Images take July 2018.


Saturday, November 17, 2018

Modern Day Spiny Sea Creatures



In July 2018, I visited the American Museum of Natural History in New York City, USA. While there I came across the Hall of Biodiversity and the variety of spiny invertebrate sea creatures on display.

Around the Louisville area we find the fossils of spiny creatures (brachipods and snails) and while not common finds they peak the interest as what they fully looked like.

See these past posts of some of the fossils found: Productella spinulicosta (Devonian), Echinoconchus alternatus (Mississippian), Platyceras dumosum (Devonian), Productella spinulicosta (Devonian), Productella? (Mississippian), and Platyceras dumosum (Devonian).


Images above show spiny gastropods on display at museum. They were not identified by name.

Modern spiny sea creatures seen that museum were Cat's Tongue Oyster (Spondylus linguaefelis) found in Hawaii, USA.

American Thorny Oyster (Spondlylus americanus) found in southeastern United States down to Brazil.

Regal Thorny Oyster (Spondylus regius) found in western Pacific Ocean.


Did not identify these next two.



 Images taken July 2018.