The Maryland Geological Society is a non-profit organization dedicated to the collection, study, and display of all aspects of the geological sciences. Members include amateur and professional fossil and mineral collectors. Membership is open to all.

The club meets at the Community Center in Bowie, Maryland, on the third Sunday of every other month, beginning in January. Visitors are welcome!

Latest Club News


We are sad to report that MGS founding member Richard "Dick" Grier, Jr., died on April 10, 2019. His elder nephew Justin Grier wrote: "He passed peacefully, free of pain, he was being treated for respiratory issues." More information will be provided to the club membership when it becomes available.

The MGS largely owes its existence to Dick, Jr., and his brother Bob (who predeceased him). They, along with their father, Dick, Sr. (who died in 2017), convened a small group of fossil and mineral enthusiasts in 1991 and founded the club with Dick, Jr., as its first president and first newsletter editor. For well over two decades, he remained an active and integral member of the MGS. Dick, Jr., was awarded the club's 2nd Life Time Achievement Award in 1998 (his father received the 1st). His history of the establishment and early years of the MGS is available here. In the photo below, Dick, Jr., (at right) appears with his father. We salute them both.

Seen at the May Meeting

MGS Vice President Eric Seifter had his recently acquired mammoth tusk on display. Trevor and David are seen below holding it. The tusk was originally found in central eastern Europe and is between 20,000 and 150,000 years old.

Paleontologist Stephen Godfrey (seen below) of the Calvert Marine Museum delivered a well-received talk on two topics: On the Making of the Model of the Cretaceous Plesiosaur Morturneria and Musings About Megalodon.

Other photographs from the May meeting can be found on the MGS Gallery Page.

Next Meeting

Sunday, July 14, 2019

Joint meeting with the American Fossil Federation.

Meeting runs from 11 am to 3 pm
at the Bowie Community Center,
3209 Stonybrook Drive, Bowie, Maryland 20715

Directions to the Center can be found
under the Activities tab above
or at this link.

Speaker and Topic: TBA

Mineral of the Meeting: Apophyllite

This specimen is from India. This image is reproduced with permission of Rob Lavinsky under Creative Commons Attribution-Share Alike 3.0 Unported license, and is available from Wikimedia Commons.

Shows & Related Events

A list of club shows in the eastern region of the U.S. is on the EFMLS' calendar.

Selected shows and related events are listed below:

Sept. 28 & 29, 2019 - The 55th Annual Atlantic Coast Gem, Jewelry, & Fossil Show hosted by the Gem Cutters Guild of Baltimore will take place at the Howard County (MD) Fairgrounds. More information can be found here.


The MGS Trips page has information on policies regarding trips and details about any upcoming trips. MGS trips are restricted to members.

Tracing the Evolution from Carcharocles chubutensis to Carcharocles megalodon

A new research article traces the evolution from "Chub" to "Meg" during the Miocene Epoch at the Calvert Cliffs (MD). Victor J. Perez and his coauthors studied the presence and disappearance over time of cusplets on teeth from these ancient sharks. Full text of the article appears in the Journal of Vertebrate Paleontology.

Smithsonian Publication about the Calvert Cliffs

The Geology and Vertebrate Paleontology of the Calvert Cliffs, Maryland, edited by Stephen J. Godfrey, offers detailed descriptions and stunning pictures of vertebrate fossils from the Cliffs. A PDF copy of the book is available here.

FOSSIL Project - Latest Newsletter

The FOSSIL Project, sponsored by the Florida Museum of Natural History and funded by the National Science Foundation, is networking amateur and professional paleontologists and their organizations. Its Spring 2019 newsletter can be found here.

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