Search results for: '100 w 31.5 shell river easel'

A very rare, LARGE, Top Quality Edestus heinrichi shark tooth, from Herrin, Illinois. This is a Paleozoic shark that lived in swamps that our now underground coal deposits. Note - this tooth has a lot of pyrite and the tip is naturally rounded (polished)  which thought to be due to the vertical whipping motion used to slice prey.  Excellent preservation, serrations, and serration detail. The Edestus shark would have an upper and lower tooth whorl that are vertically opposed. Research showed that they could use their opposing teeth in a scissor-like motion or a vertical whipping motion to cut prey. It is the first animal to cut vertically. A very strange looking and unique acting shark. Shark recreation image is credited to Julio Lacerdo. These rare teeth are Pennsylvanian age from Illinois. No repair or restoration. Authenticity guaranteed. 

I09        SIZE:  4-1/8" w/ root  (1-7/8" crown) 

Adding 22 Edestus shark teeth in July 2025.    Link to Edestus shark.

An incredible, polished Goniatites sp., an early ammonite-like cephalopod showing the intricate internal chamber structure. The rock matrix is a beautiful marble material and the cavities are mineral filled! These Goniatites are beautifully polished on all sides. Thick (7/8"+). This is a great early Ammonite. An excellent display item!

Name: Goniatites sp. , Age: Devonian (350 MM years ago), Location: Atlas Mt., Morocco

M2017          Size: 2-1/4"   

An incredible, polished Goniatites sp., an early ammonite-like cephalopod showing the intricate internal chamber structure. The rock matrix is a beautiful marble material and the cavities are mineral filled! These Goniatites are beautifully polished on all sides. Thick (3/4"). This is a great early Ammonite. An excellent display item!

Name: Goniatites sp. , Age: Devonian (350 MM years ago), Location: Atlas Mt., Morocco

M2016          Size: 2-3/8"   

An incredible, polished Goniatites sp., an early ammonite-like cephalopod showing the intricate internal chamber structure. The rock matrix is a beautiful marble material and the cavities are mineral filled! These Goniatites are beautifully polished on all sides. Thick (1"). This is a great early Ammonite. An excellent display item!

Name: Goniatites sp. , Age: Devonian (350 MM years ago), Location: Atlas Mt., Morocco

M2015          Size: 2-1/2"   

An incredible, polished Goniatites sp., an early ammonite-like cephalopod showing the intricate internal chamber structure. The rock matrix is a beautiful marble material and the cavities are mineral filled! These Goniatites are beautifully polished on all sides. Thick (1"). This is a great early Ammonite. An excellent display item!

Name: Goniatites sp. , Age: Devonian (350 MM years ago), Location: Atlas Mt., Morocco

M2014          Size: 2-5/8"   

An incredible, polished Goniatites sp., an early ammonite-like cephalopod showing the intricate internal chamber structure. The rock matrix is a beautiful marble material and the cavities are mineral filled! These Goniatites are beautifully polished on all sides. Thick (1"). This is a great early Ammonite. An excellent display item!

Name: Goniatites sp. , Age: Devonian (350 MM years ago), Location: Atlas Mt., Morocco

M2008          Size: 3"   

Note - Adding 18 Moroccan Goniatites in December 2021.  Link to Moroccan Goniatites

An incredible, polished Goniatites sp., an early ammonite-like cephalopod showing the intricate internal chamber structure. The rock matrix is a beautiful marble material and the cavities are mineral filled! These Goniatites are beautifully polished on all sides. Thick (1"). This is a great early Ammonite. An excellent display item!

Name: Goniatites sp. , Age: Devonian (350 MM years ago), Location: Atlas Mt., Morocco

M2007          Size: 3"   

Note - Adding 18 Moroccan Goniatites in December 2021.  Link to Moroccan Goniatites

An incredible, LARGE polished Goniatites sp., an early ammonite-like cephalopod showing the intricate internal chamber structure. The rock matrix is a beautiful marble material and the cavities are mineral filled! These Goniatites are beautifully polished on all sides. Thick (1-1/8"). This is a great early Ammonite. An excellent display item!

Name: Goniatites sp. , Age: Devonian (350 MM years ago), Location: Atlas Mt., Morocco

M2005          Size: 4"   (1-1/8" wide)

Note - Adding 18 Moroccan Goniatites in December 2021.  Link to Moroccan Goniatites

An incredible pair of polished Goniatites sp., an early ammonite-like cephalopod showing the intricate internal chamber structure. The rock matrix is a beautiful marble material and the cavities are mineral filled! These Goniatites are beautifully polished on all sides. Authenticity gauranteed. This is a great early Ammonite. An excellent display items!

Name: Goniatites sp. , Age: Devonian (350 MM years ago), Location: Atlas Mt., Morocco

M2013          Size: 2-1/8"   (largest)

An incredible pair of polished Goniatites sp., an early ammonite-like cephalopod showing the intricate internal chamber structure. The rock matrix is a beautiful marble material and the cavities are mineral filled! These Goniatites are beautifully polished on all sides. Authenticity gauranteed. This is a great early Ammonite. An excellent display items!

Name: Goniatites sp. , Age: Devonian (350 MM years ago), Location: Atlas Mt., Morocco

M2012          Size: 2-1/8"   (largest)

An incredible polished Goniatites sp., an early ammonite-like cephalopod showing the intricate internal chamber structure. The rock matrix is a beautiful marble material and the cavities are mineral filled! These Goniatites are beautifully polished on all sides. Authenticity gauranteed. This is a great early Ammonite. An excellent display items!

Name: Goniatites sp. , Age: Devonian (350 MM years ago), Location: Atlas Mt., Morocco

M2011         Size: 2-1/2"   

An incredible polished Goniatites sp., an early ammonite-like cephalopod showing the intricate internal chamber structure. The rock matrix is a beautiful marble material and the cavities are mineral filled! These Goniatites are beautifully polished on all sides. Authenticity gauranteed. This is a great early Ammonite. An excellent display items!

Name: Goniatites sp. , Age: Devonian (350 MM years ago), Location: Atlas Mt., Morocco

M2010         Size: 2-1/2"