--- title: Eopachydiscus Ammonites --- [Skip to content](https://www.dfwfossils.com/eopachydiscus-ammonites#main-content) [Contact us](https://www.dfwfossils.com/eopachydiscus-ammonites#contact) ![DFW Fossilslogo Banner edit pdf converted to jpg-1](https://www.dfwfossils.com/hs-fs/hubfs/DFW%20Fossilslogo%20Banner%20edit%20pdf%20converted%20to%20jpg-1.jpg?width=1613&height=558&name=DFW%20Fossilslogo%20Banner%20edit%20pdf%20converted%20to%20jpg-1.jpg) - [Home](https://www.dfwfossils.com/) - [About](https://www.dfwfossils.com/about) - [Contact](https://www.dfwfossils.com/contact) Open main navigation Close main navigation - [Home](https://www.dfwfossils.com/) - [About](https://www.dfwfossils.com/about) - [Contact](https://www.dfwfossils.com/contact) - [Contact us](https://www.dfwfossils.com/eopachydiscus-ammonites#contact) # Eopachydiscus Ammonites Large Ammonites From The Famous Duck Creek Formation ![Jan19 2025 E Marcianus1](https://www.dfwfossils.com/hs-fs/hubfs/Jan19%202025%20E%20Marcianus1.jpg?width=4032&height=3024&name=Jan19%202025%20E%20Marcianus1.jpg) ## BIG 14" Eopachydiscus Marcianus- Beautiful Inner Whorls This great specimen was discovered (and carried) roughly a mile down a slippery, rocky creek in southwest Tarrant County in late 2024. I then prepared the ammonite using my dremel tool with Zoic dremel tips designed for removing matrix from fossils. SOLD [CLICK HERE TO BROWSE MORE](https://www.etsy.com/listing/1861599393/texas-cretaceous-dinosaur-age-fossil?click_key=936b848197c6ad89054c175a8c691009aad4f3aa%3A1861599393&click_sum=c99a3909&ref=shop_home_active_4) ![Nov 17 2024 8p5 in prepped-1](https://www.dfwfossils.com/hs-fs/hubfs/Nov%2017%202024%208p5%20in%20prepped-1.jpg?width=4032&height=3024&name=Nov%2017%202024%208p5%20in%20prepped-1.jpg) ## 8.5" Eopachydiscus, Nice Sutures! I found this specimen at a new Duck Creek exposure I just found in November 2024. I personally prepared this ammonite using a Zoic Paleo tip on a Dremel 290. Pyrite is seen on the internal whorls, interestingly. It is better looking in person! SOLD [CLICK HERE TO BROWSE MORE](https://www.ebay.com/itm/365232043628?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=5xjakuy8s4e&sssrc=2047675&ssuid=5xjakuy8s4e&widget_ver=artemis&media=COPY) ![July 17 2024 Eopach1-2](https://www.dfwfossils.com/hs-fs/hubfs/July%2017%202024%20Eopach1-2.jpg?width=3533&height=3024&name=July%2017%202024%20Eopach1-2.jpg) ## 10" Eopachydiscus- Oliver Creek I found this eopachydiscus sp. ammonite in July 2024 near Justin, TX. SOLD [Click Here For More Info!](https://www.ebay.com/itm/365014428702?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=5xjakuy8s4e&sssrc=2047675&ssuid=5xjakuy8s4e&widget_ver=artemis&media=COPY) ![IMG\_7468 (1)](https://www.dfwfossils.com/hs-fs/hubfs/IMG_7468%20(1).jpeg?width=1024&height=914&name=IMG_7468%20(1).jpeg) ## 6" E. Marcianus, Crystals Covering One Side I found this specimen at a new Duck Creek exposure I just found in November 2024. I personally prepared this ammonite using a Zoic Paleo tip on a Dremel 290. SOLD ![8 in eop w nice sutures unprepped-1](https://www.dfwfossils.com/hs-fs/hubfs/8%20in%20eop%20w%20nice%20sutures%20unprepped-1.jpg?width=3022&height=3547&name=8%20in%20eop%20w%20nice%20sutures%20unprepped-1.jpg) ## 8" Unprepped Eopachydiscus, Nice Sutures This 8" eopachydiscus ammonite was found eroding out of a rocky creek bank south of Lake Benbrook. Though unprepped, you can see the very nice suture patterns. SOLD ![10point5in eopachydiscus prepped3-24-1](https://www.dfwfossils.com/hs-fs/hubfs/10point5in%20eopachydiscus%20prepped3-24-1.jpg?width=4032&height=3024&name=10point5in%20eopachydiscus%20prepped3-24-1.jpg) ## 10.5" Eopachydiscus Professionally prepared by Mercer M. Brugler of The Fossil Factory, beautiful sutures are visible on this premier specimen ideal as a main display. SOLD 3/20/24 ![Nov 17 2024 12in prepped-1](https://www.dfwfossils.com/hs-fs/hubfs/Nov%2017%202024%2012in%20prepped-1.jpg?width=4032&height=3024&name=Nov%2017%202024%2012in%20prepped-1.jpg) ## 12" Eopachydiscus Marcianus, BIG I found this specimen at a new Duck Creek exposure I just found in November 2024. I personally prepared this ammonite using a Zoic Paleo tip on a Dremel 290. [SOLD](https://www.ebay.com/itm/365228122598?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=5xjakuy8s4e&sssrc=2047675&ssuid=5xjakuy8s4e&widget_ver=artemis&media=COPY) ![ammoniteEopachy5A-2](https://www.dfwfossils.com/hs-fs/hubfs/ammoniteEopachy5A-2.jpg?width=3445&height=2899&name=ammoniteEopachy5A-2.jpg) ## "Unprepared" Eopachydiscus This specimen was sold at FossilMania! in 2023 but I'm posting it as an example until I have more product ready for sale (I have several in the works) ![ammoniteEopachy3B](https://www.dfwfossils.com/hs-fs/hubfs/ammoniteEopachy3B.jpg?width=3516&height=2922&name=ammoniteEopachy3B.jpg) ## "Unprepared" Eopachydiscus This speciment was also sold at FossilMania! 2023. ![RC big eopachydiscus-1](https://www.dfwfossils.com/hs-fs/hubfs/RC%20big%20eopachydiscus-1.jpg?width=2902&height=2805&name=RC%20big%20eopachydiscus-1.jpg) ## Personal Collection- My Pet Monster A huge eopachydiscus that took about 4 hours to chisel out of a steep, rocky creek bank, this one is shown unprepared but I plan to sandpaper and chisel my way to a perfect display speciment with this one. ![RC eopachydiscus first big one](https://www.dfwfossils.com/hs-fs/hubfs/RC%20eopachydiscus%20first%20big%20one.jpg?width=3024&height=4032&name=RC%20eopachydiscus%20first%20big%20one.jpg) ## Personal Collection- My First Large Complete Eopachydiscus This 15" diameter ammonite was partly protruding from a rocky creek bank before I freed it from its long-term captivity. Beautiful sutures are present on this one. It broke minutes after taking this photo, but it has been repaired. - [Home](https://www.dfwfossils.com) - [About](https://www.dfwfossils.com/about) - [Contact](https://www.dfwfossils.com/contact) --- 123 Waverly Pl., Boston, MA 02135 Copyright © 2026,