Search results for: 'spine age a'

A GEM, LARGE rare Bramble shark. An extremely difficult shark to find. Perfect cusps. An exceptional museum quality collector's tooth! Perfect tooth! The BEST!

C862                SIZE: 3/8"

A GEM, LARGE rare Bramble shark. An extremely difficult shark to find. Perfect cusps. An exceptional museum quality collector's tooth! Perfect tooth! The BEST!

C863            SIZE: 3/8"

A rare Akantharges mbareki trilobite. This rare trilobite species has only been available for 5 years. A very ornate design with spines and tubercles on its cephalon and pygidium! This species appears to be armored or designed to blend into its environment for protection. Excellent shell and spine preservation. Good size. A very rare species! A Middle Devonian (380 mya) trilobite from the Tinejdad area, Atlas Mts., Morocco. Authenticity guaranteed. A very unusual trilobite species!

XM04        Size: 1-1/4"  x  1-1/4"

Note - More than 20 high quality Devonian age Moroccan trilobite species for sale. Authenticity guaranteed.  -->  Link to Moroccan Trilobites.

A rare EXTRA LARGE, Top Quality Heterodontus dorsal spine - the Horn shark from the Sharktooth Hill area, near Bakersfield, California. These Heterodontus spines only occasionally fossilize and they are quite rare. A great defensive weapon for the Horn shark! No repair or restoration. Authenticity guaranteed. The Sharktooth deposits produce the largest and best fossil Horn shark spines. This is a huge spine!

ST115        SIZE: 3-1/8"

Note - Adding 4 Heterodontus dorsal spines in February 2022.  Link to Heterodontus fossils

A rare EXTRA LARGE, Top Quality Heterodontus dorsal spine - the Horn shark from the Sharktooth Hill area, near Bakersfield, California. This big spine specimen is still attached to its original Round Mountain silt matrix with a 2-1/4" whale ear bone. These Heterodontus spines only occasionally fossilize and they are quite rare. A great defensive weapon for the Horn shark! No repair or restoration. Authenticity guaranteed. The Sharktooth deposits produce the largest and best fossil Horn shark spines. This huge spine makes a fantastic Sharktooth Hill display piece!

ST119        SIZE: 3-1/4"

Note - Adding 4 Heterodontus dorsal spines in February 2022.  Link to Heterodontus fossils

Note - Adding 12 Sharktooth Hill display pieces in Feb. 2022.    Link to STH Display Items

A rare Top Quality Heterodontus dorsal spine - the Horn shark from the Sharktooth Hill area, near Bakersfield, California. These Heterodontus spines only occasionally fossilize and they are quite rare. A great defensive weapon for the Horn shark! No repair or restoration. Authenticity guaranteed. The Sharktooth deposits produce the largest and best fossil Horn shark spines.

ST117        SIZE: 1-5/16"

Note - Adding 4 Heterodontus dorsal spines in February 2022.  Link to Heterodontus fossils

A rare EXTRA LARGE, Top Quality Heterodontus dorsal spine - the Horn shark from the Sharktooth Hill area, near Bakersfield, California. These Heterodontus spines only occasionally fossilize and they are quite rare. A great defensive weapon for the Horn shark! No repair or restoration. Authenticity guaranteed. The Sharktooth deposits produce the largest and best fossil Horn shark spines.

ST116        SIZE: 2-3/4"

Note - Adding 4 Heterodontus dorsal spines in February 2022.  Link to Heterodontus fossils

A rare High Quality, Large Heterodontus dorsal spine - the Horn shark from the Sharktooth Hill area, near Bakersfield, California. These Heterodontus spines only occasionally fossilize and they are quite rare. A great defensive weapon for the Horn shark! No repair or restoration. Authenticity guaranteed. The Sharktooth deposits produce the largest and best fossil Horn shark spines.

ST118        SIZE: 2-1/8"

A Rare, Extra Large Crotalcephalus aff. africanus trilobite. Another November Fossil of the Month. This is a BIG trilobite with a very unique design including long spines on the pygidium. This species appears to be armored or designed to blend into its environment for protection. Incredible shell and spine preservation and incredible size for this rare species! An impessive specimen. A Middle Devonian (380 mya) trilobite from the El Jorf area, Atlas Mts., Morocco. Authenticity guaranteed. A very large and well preserved trilobite. Much different from the typical examples in the market. The BEST collector's quality! Museum Quality.

XM47        Size: 3-3/4"  x  2-1/2" W x 3/4" shell height or relief

Note - More than 20 high quality Devonian age Moroccan trilobite species for sale. Authenticity guaranteed.  -->  Link to Moroccan Trilobites.

A beautifully prepared, LARGE Leonaspis sp. trilobite. Very unique raised eyes design and long spines are fully exposed - see close up photo. Exceptional black shell and spines. A Middle Devonian (380 mya) trilobite from the Djebel Issoumour area, Atlas Mts., Morocco. Authenticity guaranteed. An excellent large sized GEM QUALITY specimen.

XM29       Size: 1-1/2"  (1-1/4" )

Adding 31 quality Moroccan trilobites in April 2025.     Link to Moroccan trilobites.

A "Flying" Cyphaspis tafilaltense trilobite. A great "Flying" specimen on a matrix pedestal with the long spines that are free standing. The preparation is German directed with all original colors and no restoration. Great natural black shell with excellent luster. An ornate design with three long spines! A Middle Devonian (380 mya) trilobite from Djebel Issoumour area, Atlas Mts., Morocco. Authenticity guaranteed.

XM26        Size: 1-1/2"

Adding 11 quality Morocaan trilobites in October 2021.      Link to Moroccan trilobites.

A "Flying" TOP QUALITY Walliserops trifurcatus trilobite, the "trident Comura".  A November Fossil of the Month and one of the collector's favorite spiny trilobites. Walliserops trifurcatus is an unusual looking species with three rows of of spines run down its back and a trident-like fork extending from the front of the cephalon. The preparation is German controlled with all original colors and no restoration. Exceptional completeness and preservation. Great natural black shell with excellent luster. The bottom of this trilobite has been cleaned out and it sits on an 1" matrix pedestal. A very difficult species to prepare. Excellent shell and spine preservation. Compound eyes are very good. Good size. A rare species! One of the ultimate Middle Devonian (380 mya) spiny trilobite from the Foum Zguid, Morocco. Authenticity guaranteed. One of my favorite spiny trilobites!  Museum Quality.  On Hold

XM06          Size: 3-1/4"  x  1-1/4"

Adding 9 top quality Devonian age Moroccan trilobite species.  -->  Link to Moroccan Trilobites.