Fossil of the Month - Complete Listing

A LARGE, RARE, Top Quality Megachasma tooth, the Megamouth shark, from the Bahia Iglesa Fm., Chile. An April Fossil of the Month. The Megamouth shark is a very rare and exotic fossil shark tooth since it is rarely found in the fossil record. Megachasma teeth are one of the scarce and well preserved fossils that are unique to the Caldera Basin site in Chile!  Late Miocene age. No repair or restoration. An exceptional and rare collector's tooth! Authenticity guaranteed.

C551           Size: 15/16"  (Base  9/16" x 1/2")

Note - Adding 8 new Chilean Megachasma teeth in April 2026 -> Link to Megachasma teeth

An ULTRA RARE, "Dual Crown" PATHOLOGIC Megachasma tooth, the Megamouth shark, from the Bahia Iglesa Fm., Chile. An April Fossil of the Month. The Megamouth shark is a very rare and exotic fossil shark tooth since it is rarely found in the fossil record. Megachasma teeth are one of the scarce and well preserved fossils that are unique to the Caldera Basin site in Chile!  Late Miocene age. No repair or restoration. An exceptional and ultra rare collector's "Dual Crown"tooth! Authenticity guaranteed. My last and best dual crown tooth.

C558            Size: 5/8"  (Base  7/16" x 7/16")

Note - Adding 8 new Chilean Megachasma teeth in April 2026 -> Link to Megachasma teeth

A rare, Top Quality fossil Giant Beaver incisor tooth (Castoroides leiseyorum) from a natural spring, Central Florida. A March Fossil of the Month. Gorgeous black color with mottled blue and cream hues.. Nice characteristic "chisel shape" wear pattern. The Giant Beavers grew to 6 to 8 feet in length and could weigh 500 lbs. Pleistocene age. Complete tooth. No repair or restoration. Authenticity guaranteed. You can own a rare and wonderful story piece from the Ice Age!  

Name: Castoroides leiseyorum     Age: Late Pleistocene     

Location:  Central Florida

X761             SIZE: 3-1/8" straight line ; 3.4" on curve   (1-1/8" Wide)

Note: Adding 5 Pleistocene Giant Beaver teeth in March 2026.    Link -> Ice Age Fossils - Other

A rare, Top Quality fossil Giant Beaver incisor tooth (Castoroides leiseyorum) from Withlachoochee River, Florida. A March Fossil of the Month. Gorgeous red color. Nice characteristic "chisel shape" wear pattern. The Giant Beavers grew to 6 to 8 feet in length and could weigh 500 lbs. Pleistocene age. Complete tooth. No repair or restoration. Authenticity guaranteed. You can own a rare and wonderful story piece from the Ice Age!  

Name: Castoroides leiseyorum     Age: Late Pleistocene     

Location:  Withlachoochee River, Florida

X765             SIZE: 2-1/4" straight line ; 2.3" on curve   (3/4" Wide)

Note: Adding 5 Pleistocene Giant Beaver teeth in March 2026.    Link -> Ice Age Fossils - Other

A Top Quality Diplomystus dentatus and Priscacara (Cockerellites) liops fish from the 18" layer, Green River Fm., Lincoln Co. Wyoming. A March Fossil of the Month. Diplomystus dentatus is a Herring and the Priscacara liops is an extinct Perch from the Eocene age (50 MYA). This piece is from the 18 Inch Layer which is extremely hard and difficult to prepare. It also provides the most detailed, highly preserved fossils. Exceptional preservation and preparation. No repair or restoration. All natural. Authenticity guaranteed. An excellent display piece!  Note - This item weighs 15 lbs. An international shipping surcharge will be applied to "Free Shipping". Please inquire for cost.

X483       SIZE: 8-1/4" Diplomystus ;  5-1/2" Priscacara     Plate size is 17.5" x 14.5"

Note - Adding 12 Green River Fm. Fossil fish in November 2023 --> Link to Fossil Fish

A TOP QUALITY Phareodus fish. The Phareodus encaustus is a Osteoglossidae fish from the Eocene age (50 MYA) fish, Green River Fm., Lincoln Co. Wyoming. A Mach Fossil of the Month. A scarce species. The Phareodus was a carnivorous fish with large pointed teeth and a long pectoral fin. This piece is from the 18 Inch Layer which is extremely hard and difficult to prepare. It also provides the most detailed, highly preserved fossils. Exceptional preservation and preparation. No repair. All natural. Plate size is 13" x 11". Authenticity guaranteed. Note - This item weighs 6 lbs. An international shipping surcharge will be applied to "Free Shipping". Please inquire for cost.

X497        SIZE: 8-1/8"     Plate size is 13" x 11".

Note - Adding 4 Green River Fm. Fossil fish in March 2026 --> Link to Fossil Fish

A GEM QUALITY, Red Chubutensis tooth from the Ica area of Peru - an upper jaw anterior tooth. A March Fossil of the Month. An incredible red colored crown with no peel. Highest quality enamel. Sharp serrations are complete. Very nice side cusps. The bourlette is a red color and 100% complete. The root has a fantastic, bright red color, nicely articulated, and complete. An incredibly colored, Peruvian Chubutensis tooth! No repair or restoration. Authenticity guaranteed. Perfect red tooth. 

P031              SIZE: 1-3/4"

Note - Adding 3 new Peruvian Chubutensis teeth in March 2026    Link to Peruvian Chubutensis teeth

An ultra rareTenontosaurus tilletti  "chest" consisting of the scapula, 13 ribs, and 6 vertebra as found on its original Cloverly Formation matrix. A March Fossil of the Month. Tenontosaurus is an early Cretaceous basal iguanodontid dinosaur, and it was the primary prey for Deinonychus. This specimen was prepared to thoroughly expose the chest area bones. Bones were exposed 2" above the matrix which makes a great 3D display. Minor crack fill. The ribs are as found with no extra fill used. No restoration. Legally collected on private land in the Clovery Fm., Carbon Co., Montana. Authenticity guaranteed.  A very rare collector's display piece. You don't see Tenontosaurus fossils very often. Note - This specimen has a custom steel display stand as shown. This specimen weighs 35 lbs. A supplemental shipping fee will be required for international orders.

DTE01         SIZE: 19-1/2" x 13"

Note - Adding 6 Tenontosaurus dinosaur foosils in March 2026.    Link to Herbiovore teeth

An ultra rare, Top Quality Torvosaurus gurneyi tooth from the Jurassic (Kimmeridgian) of Portugal. A March Fossil of the Month. This is the 2nd Torvosaurus species with a complete crown measures 2". The enamel is highest quality. Excellent black color. Excellent extra large posterior and anterior serrations. Note - the anterior carina end about 2/3 of the way down from the tip. The diagnostic for a Torvosaurus tooth. Excellent overall enamel condition. A small tip repair (see UV photo). The serration reconstruction is exceptional. No restoration. Torvosaurus was a large predator during the late Jurassic with large teeth designed to slash predators. Collected in the Lourinha Fm., Port Dinheiro, Lourinha, Portugal . Authenticity guaranteed.  A very difficult species to find. This specimen weighs 2 lbs. A supplemental shipping fee will be required for international orders.

DL61         SIZE: 2"   

Note - Adding 2 Jurassic Torvosaurus teeth in March 2026.   Link to Allosaurus - Torvosaurus teeth

A rare Top Quality Archaeodontosaurus rooted sauropod tooth from the Madagascar. A March Fossil of the Month. Archaeodontosaurus is a large sauropod known from the Middle Jurassic (Bathonian) Isalo III formation, characterized by teeth that appear adapted for browsing, similar to some earlier sauropodomorphs. This rooted tooth has an incredible "leaf" shaped crown. The enamel is exceptional quality. Excellent brown color. One root crack is stabilied. No restoration. Collected in the Ambondroman Region, Madagascar. Authenticity guaranteed. A rare rooted collector's tooth. Note - a Riker display frame is included.

MAD01         SIZE: 1-13/16"   

Link to Sauropod teeth

An Ultra Rare, TOP QUALITY Spicomellus afer spike osteoderm from the earliest known Ankylosaur found in the Boulemane region of Morocco. A March Fossil of the Month.  An excellent spike with an incredible natural black color and patina. The surface quality is exceptional with no pitting, nicks or wear! Fully inflated. Simple crack fill. No restoration. An exceptional quality, collector's spke. Authenticity guaranteed. Spicomellus afer specimens are quite rare and only a few have been found. This is what a real Spicomellus afer spike looks like.  Jurassic age (Bathonian) - 166 MYA. Found in the El Mers Group (formation), Boulahfa, So. of Boulemane, Fes Meknas, Morocco.

M1301c      Size: 4-1/4"   ;  1-3/8" spike width  ;  Base width: 2-3/4"

An EXTRA LARGE, GEM QUALITY Ceratonurus sp. trilobite. Another collector's favorite spiny trilobite. A March Fossil of the Month. The preparation is German with all original colors and no restoration. Fourteen large spines fully exposed requiring many dozens of hours of air abrasion. You can see the natural bumps along the long spine were preserved. One of the most difficult species to prepare. Excellent shell and spine preservation. Large size. A rare species! The ultimate Middle Devonian (390 mya) spiny trilobite from the Atchana area, Atlas Mts., Morocco. Authenticity guaranteed. One of my favorite spiny trilobites!  Note - specimen weights 2.5 lbs. International orders will require supplemental postage. Please inquire.  

XM79          Size: 2-1/2"   (3" wide)

Adding 4 top quality Moroccan trilobites in March 2026.     Link to Moroccan trilobites.