Search results for: 'crown mako with guid'

A GEM, large Squatina biforis tooth with excellent color. The spiked crown is in exceptional condition. A top quality collector's tooth. Extra large size! The BEST!

C451                SIZE: 1/4"

A GEM, large Squatina biforis tooth with excellent color. The spiked crown is in exceptional condition. A top quality collector's tooth. Extra large size! The BEST!

C452           SIZE: 1/4"

A GEM, large Squatina biforis tooth with excellent color. The spiked crown is in exceptional condition. A top quality collector's tooth. Extra large size! The BEST!

C453            SIZE: 1/4"

A GEM, large Squatina biforis tooth with excellent color. The spiked crown is in exceptional condition. A top quality collector's tooth. Extra large size! The BEST!

C454               SIZE: 1/4"

A GEM, large Squatina biforis tooth with excellent color. The spiked crown is in exceptional condition. A top quality collector's tooth. Extra large size! The BEST!

C455           SIZE: 1/4"

A very rare, Top Quality Edestus heinrichi shark tooth, from Herrin, Illinois. This is a Paleozoic shark that lived in swamps that our now underground coal deposits. 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. 

I23          SIZE:  1-7/8"  w/ root  (7/8" crown)

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

A very rare, Top Quality Edestus heinrichi shark tooth, from Herrin, Illinois. This is a Paleozoic shark that lived in swamps that our now underground coal deposits. 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. 

I18          SIZE:  2-1/2" w/ root   (1-1/4"crown)

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

A very rare, Top Quality Edestus heinrichi shark tooth, from Herrin, Illinois. This is a Paleozoic shark that lived in swamps that our now underground coal deposits. An incredible brown colored specimen - very unusual. 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. 

I10        SIZE:  3-1/2" w/ root  (1-5/8" crown) 

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

Retroflexus - A pair of rare I. retroflexus teeth. Upper jaw position. Very nice light color with exceptional gloss. Great preservation and condition - extra sharp edges and tip - exceptionally clean.

C617     (Left)         Size: 7/8"

Retroflexus - A GEM rare I. retroflexus tooth. Upper jaw position. Very nice light color with exceptional gloss. Great preservation and condition - extra sharp edges and tip - exceptionally clean.

C620     (Right)          Size: 7/8"+

Retroflexus - A GEM rare I. retroflexus teeth. Upper jaw anterior position. Very nice light color with exceptional gloss. Great preservation and condition - extra sharp edges and tip - exceptionally clean.

C619    (Left)         Size: 7/8" 

Retroflexus - A GEM rare I. retroflexus tooth. Upper jaw anterior position. Very nice light color with exceptional gloss. Great preservation and condition - extra sharp edges and tip - exceptionally clean.

C624   (Right)        Size: 1"