Search results for: 'rows bottom guid'

Two natural Hoploscaphites nebrascensis ammonites with excellent preservation of the shell material. The ammonites are fully exposed and their shells exhibit some natural iridescence. This ammonite species exhibits big ribs with multiple rows of tubercles (nodes). This specimen is sits in an original Pierre Shale nodule with a flat base for a great display. This ammonite is from the upper Cretaceous, Pierre Shale Fm. of So. Dakota. Authenticity guaranteed. A fantastic display piece.  

SD04        Size: 1-3/4"

Note - Adding 6 So. Dakota ammonites in August 2025.  -->  Link to So. Dakota Ammonites

A Top Quality Ptychodus mortoni, an extinct durophagous (shell-crushing) shark, tooth from Dallas Co., Texas. A symphyseal tooth from the front rows. An excellent example of this Upper Cretaceous Eagle Ford Fm. tooth. These  teeth have a design that includes a high cusp with radiating occlusal ridges extending across the cusp face. Authenticity guaranteed. P. mortoni is a rare species in Texas, and when teeth get this large they are extremely rare!  

T3891            SIZE: 3/4"

Adding 24 Ptychodus mortoni teeth in August 2025.   Link to Texas shark teeth

Three natural Hoploscaphites nebrascensis ammonites in a cluster with excellent preservation of the shell material. There are three ammonites in this cluster. The shell material has some natural iridescence.  This ammonite species exhibits big ribs with multiple rows of tubercles (nodes). This specimen is sits in an original Pierre Shale nodule with a flat base for a great display. This ammonite is from the upper Cretaceous, Pierre Shale Fm. of So. Dakota. Authenticity guaranteed. A fantastic display piece. Note - this specimen weighs 1.4 lbs. An international supplemental shipping charge will apply.

SD01        Size: 2"

Note - Adding 10 So. Dakota ammonites in December 2020.  -->  Link to So. Dakota Ammonites

A Paraconularia crustala, a Conulariid, from Holdenville, Oklahoma. Conulariid, is a genus named for the Latin word conulus or cone. This fossil is shaped like a rectangular cone. The fossil is made up of rows of calcium phosphate rods which is the same material that a fossil shark is made of. This creature was placed Cnidaria phylum in the Animal kingdom, and its relatives include the corals, anemones, and jellyfish. Exceptional preservation. This is a Wewoka Fm., Pennsylvanian Period fossil (300 MYA). Authenticity guaranteed. A very unique display piece! 

Y073         SIZE: 1-7/8"   (3/4" Thick)  

Note - Posting 6 new "Other" fossils in January 2024.    Link to Other Fossils

Excellent photos of Peru desert, museum displays, Peruvian shark teeth collections, shark dentitions, marine mammals, cultural photos, and Mark's story line. A great guide for Peruvian shark teeth. Great on location photos. 197 pages. Note - an intenational shipping surcharge may be required for qualified free shipping orders.

BB13              Size:   5-1/4"  x 8-1/4"

An EXTRA LARGE, Top Quality Miocene-Pliocene Mastodon molar from Florida. A May Fossil of the Month. An extinct elephant ancestor that inhabited North America during the late Miocene to late Pliocene. This molar is a big with 5 cusp rows and a small amount of cusp wear. Exceptional articulation. A big root - 100% complete. This is an exceptionally well fossilized Mastodon specimen. Note - Comes complete with the steel and hardwood base stand shown. Weighs 5 bs. No damage. No restoration or repair. An excellent, authentic Mastodon tooth. Authenticity guaranteed.

X609 BoP       Size (specimen): 7" L x 3.5" W x 6.52" H  ;  Stand 9" x 6"

Name: Mastodon    

Age: Miocene - Pliocene    

Location: Northern Florida

Note - Posting two Mastodon teeth in May 2020 -> Link to Mastodon teeth

A rare, GEM Quality juvenile Miocene-Pliocene Mastodon molar from Florida. A February Fossil of the Month. This is an extinct elephant ancestor that inhabited North America during the late Miocene to late Pliocene. This molar has 3 cusp rows with no cusp wear. So, this is an unerupted tooth. Exceptional articulation. Fantastic red color! This is an exceptionally well fossilized Mastodon specimen. Note - Comes complete with custom stand as pictured. No damage. No restoration or repair. An exceptional, authentic juvenile Mastodon tooth. Authenticity guaranteed. The finest colored GEM quality Mastodon tooth!

X612  BoP     Size:  3-1/2" Long x 2-3/4" Wide x 4" High  ;  Height on stand = 5"

Name: Mastodon (Mammut americanum)

Age: Pliocene - Pleistocene

Location: Northern Florida

Posting 3 Mastodon teeth in February 2024  -->  Link to all Mastodon teeth

A LARGE, Top Quality Miocene-Pliocene Mastodon molar from Florida. This is an extinct elephant ancestor that inhabited North America during the late Miocene to late Pliocene. This molar is a big tooth with 5 cusp rows with typical cusp wear. Exceptional articulation. Excellent orange & brown colors! This is an exceptionally well fossilized Mastodon specimen. Note - Tooth comes complete with custom stand as pictured. No damage. No restoration or repair. An exceptional, authentic Mastodon tooth. Authenticity guaranteed. Note this item weighs 4.5 lbs and a supplemental shipping charge is required for international orders. 

X609       Size:  7-1/4" Long x 4" Wide x 4-1/2" High  ;  Height on stand = 6-3/4"

Name: Mastodon (Mammut americanum)

Age: Pliocene - Pleistocene    

Location: Northern Florida

Posting 3 Mastodon teeth in February 2024  -->  Link to all Mastodon teeth

A "Flying" Top Quality, EXTRA LARGE Zilchovaspis rogusa trilobite from Morocco. A November Fossil of the Month. It has German controlled preparation and retains all natural color and detail. The bottom of this trilobite has been cleaned out and it sits on an 1" matrix pedestal. Preparation easily took many dozens of hours to clean this specimen. Incredible prep work! All natural. A Lower Devonian trilobite. One of my favorite Devonian species. Authenticity guaranteed.  Note - Specimen weighs 1.2 pounds and a supplemental international shipping surcharge will be applied tp Free Shipping. The largest Zilchovaspis rogusa trilobite that I have seen. A massive trilobite!

XM72       Size: 4-1/2" straightline ; 6" on curve (2-3/4" wide)

Adding 9 quality Moroccan trilobites in November 2025.     Link to Moroccan trilobites.

A COLORFUL, Top Quality Miocene-Pliocene juvenile Mastodon molar from northern Florida. This is an extinct elephant ancestor that inhabited North America during the late Miocene to late Pliocene. This molar is a big tooth with 3 cusp rows with typical cusp wear. Exceptional articulation. Excellent red & golden tan colors! This is an exceptionally well fossilized Mastodon specimen. Note - Tooth comes complete with custom base plate as pictured. Note - Small repairs to the root end only. No restoration. An exceptional, authentic Mastodon tooth. Authenticity guaranteed. Note this item weighs 2.75 lbs and a supplemental shipping charge is required for international orders. 

X622       Size:  3-1/4" Long x 3" Wide ;  Height on stand = 4"

Name: Mastodon (Mammut americanum)

Age: Pliocene - Pleistocene    

Location: Northern Florida

Posting 8 Mammoth / Mastodon teeth in October 2025  -->  Link to all Mastodon teeth

A COLORFUL, LARGE, Top Quality Miocene-Pliocene Mastodon molar from northern Florida. An October Fossil of the Month. This is an extinct elephant ancestor that inhabited North America during the late Miocene to late Pliocene. This massive tooth has 4 large cusp rows with typical cusp wear. Exceptional overall articulation. Incredible red & black colors! This is an exceptionally well fossilized Mastodon specimen. Note - Tooth comes complete with custom stand as pictured. No repair or restoration. An exceptional, authentic Mastodon tooth. Authenticity guaranteed. Note this item weighs 6+ lbs and a supplemental shipping charge is required for international orders. A fanastic big color tooth!

X601       Size:  7-1/2" Long x 4" Wide ;  Height on stand = 7"

Name: Mastodon (Mammut americanum)

Age: Pliocene - Pleistocene    

Location: Northern Florida

Posting 8 Mammoth / Mastodon teeth in October 2025  -->  Link to all Mastodon teeth

A rare, Extra Large Top Quality Miocene-Pliocene Mastodon molar from Chatham Co., Georgia. This is an extinct elephant ancestor that inhabited North America during the late Miocene to late Pliocene. This molar is  big with 4.5 cusp rows with essentially no cusp wear. So, this is a recently erupted or unerupted tooth. Cusps are 1-3/4" high. Exceptional articulation. Excellent black color! This is an exceptionally well fossilized Mastodon specimen. Note - Comes complete with custom steel stand as pictured. No damage. No restoration or repair. An exceptional, authentic Mastodon tooth. Authenticity guaranteed. Note this item weighs 6.1 lbs and a supplemental shipping charge is required for international orders. 

X610       Size:  7-1/4" Long x 3-3/4" Wide (1-3/4" cusp height)  ;  Height on stand = 6-1/4"

Name: Mastodon (Mammut americanum)

Age: Pliocene - Pleistocene

Location: Chatham Co., Georgia

Posting 6 ancestral elephant teeth in September 2024  -->  Link to all Mastodon teeth