Search results for: '文京区水道1-5-4'

A rare, incredibly preserved Asterocidaris meandrina, a fossil club echinoid (urchin). The specimen is fully inflated, nicely articulated, and complete with bulbous spines - a very aesthetic display. These “Club” echinoids on matrix include some composite spines/radioles from their species. This fantastic echinoid is middle Jurassic period from from Boulemane, Middle Atlas Mts., Morocco. A very special collector item and a fantastic display piece. NO repair! Authenticity guaranteed. The BEST of the BEST!

M2032          SIZE: 2-3/4"    On HOLD

Adding 7 new Moroccan club echinoids in October 2021.   Link ->  Echinoids Catalog

A Knightia fish mortality plate with three fish from the Green River Fm., Lincoln Co. Wyoming. This piece is from the 18 Inch Layer which is extremely dense and difficult to prepare. It also provides the most detailed, highly preserved fossils.The Knightia eocaena is a Herring-like fish from the Eocene age (50 MYA).  Exceptional preservation and preparation. No repair. All natural. Authenticity guaranteed. An exceptional display piece.  Note - This item weighs 2 lbs. An international shipping surcharge will be applied to "Free Shipping". Please inquire for cost.

X463        SIZE: 4" (largest)      Plate size:  7.5" x 5" 

Note - Adding 17 Green River Fm. Fossil fish in November 2025 --> Link to Fossil Fish

An Ultra Rare, rooted Top Quality Allosaurus fragilis tooth measuring 3-1/4". This Allosaurus crown measures 1-3/8" and is wide for its size (11/16"). This tooth is still inflated. The enamel is high quality. Great rich brown color. Excellent serrations on both sides all the way to the tip. Exceptional serrations for a large tooth. Root cracks were stabilized. A small tip repair was done by George Heslep. Excellent overall condition with very good serrations. An excellent quality tooth! Allosuarus was the apex during the late Jurassic with large teeth designed to slash predators. Legally collected on private land in the Morrison Fm., Moffat Co., Colorado. Authenticity guaranteed.  Note - a Riker case display is included. This is a very special rooted Allosaurus tooth!

DL01 BoP2         SIZE: 3-1/4"   (11/16" x 5/16" cross section of root)

Note - Adding 3 Allosaurus teeth in January 2021    Link to Allosaurus teeth

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 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. 

I15           SIZE:  1-1/4"    

Adding 14 Edestus shark specimens in January 2023.    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. 

I22          SIZE:  1--1/4" crown

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

A Quality, Megalodon tooth - an upper jaw tooth from the ACE River basin, South Carolina. An excellent BLACK colored crown. High quality enamel. The bourlette is a large and black color. The serrations are worn, but visible. The root is black color, wide, and  complete. No repair or restoration. Authenticity guaranteed.  A quality collector's Megalodon tooth. An excellent big Megalodon tooth!

SC006       Size: 5-1/8"  (4-1/8" wide)

Note - Adding 20 new SC Megalodon teeth in October 2025  ->  Link to SC Megalodon teeth.

An EXTRA LARGE, Top Quality Crotalocephalina gibbus trilobite from Morocco. The preparation is German with all original colors and no restoration. Great natural greenish black shell with excellent luster. The specimen is fully exposed including the base on the cephalon and very nicely displayed. A Lower Devonian trilobite  (395 mya) from the Hamar Laghdad area, Atlas Mts., Morocco. Authenticity guaranteed. Museum Quality specimen. 

XM08          Size: 3-1/8"

Note - Adding 16 new Moroccan Trilobites in May 2024.    -->    Link to Moroccan Trilobites

A rare, Top Quality Trigonotodus aktulagaicus shark tooth, a Thresher shark, from the Tolagaysor Fm., Aktulagay, western Kazakhstan. This is an early Eocene (Ypresian) Lamnidae tooth. This scarce shark species. Excellent condition and preservation. These teeth are difficult to find! Authenticity guaranteed. One of the finest localities for Eocene age shark teeth! I only hane one tooth from this species!

K886         Size:  1/2"

Posting 5 Kazakh Trigonotodus shark teeth in 2024.    Link to Kazakh Trigonotodus teeth.

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.

A Top Quality, Zuul crurivastator tooth (Ankylosaur) from the late Cretaceous of northern North America. The Campanian age Ankylosaurs grew to 20 feet and 6000 pounds, and a body covered with this bony armor. This tooth exhibits excellent quality with excellent color / patina. No cracks or restoration. ~76 MYA. Legally collected on private land in the Judith River Fm., Wheatstone Co., Montana. Authenticity guaranteed. A collector's quality Ankylosaur tooth. Note - tooth comes with the gem case pictured.

DK12       SIZE: 1/4"  (3/16" W)   

Note - Adding 16 new Ankylosaur - Nodosaur fossils in January 2023.       Link to Ankylosaur fossils catalog.

An EXTRA LARGE Rare, TOP QUALITY Palaeocarcharodon transition tooth from Morocco. This is a partially serrated tooth which appears to be an evolutionary intermediate on the path to fully serrated tooth.  A lateral tooth. Excellent golden tan color. Larger highly irregular serrations at the base that get finer toward the tip and few side cusp serrations! Extra large side cusps. An exceptional tooth! Possible root corner reattached. A top quality collector's transition tooth. Authenticity guaranteed.

M411             SIZE: 1-7/8"

Note - Adding 22 Palaeocarcharodon teeth in July 2022.     Link to Palaeocarcharodon teeth.

A Top Quality Eupatagus antillarum sea urchin from Levi County, Florida. These spiny sea urchins are found in the Ocala Limestone Formation and are Eocene age (38 MYA). Exceptional preservation.  Authenticity guaranteed. An excellent collectors specimen.

F1101        Size: 2-1/2"

Note - Posting 5 Florida Sea Urchins in December 2021.  ->  Link to Echinoderms.