Search results for: 'chile promedio de toe el ag de calhoun ga'

A natural Hoploscaphites nebrascensis ammonite with excellent preservation of the shell material. The ammonite shell has some 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. The end is filled with calcite crystals! This ammonite is from the upper Cretaceous, Pierre Shale Fm. of So. Dakota. Authenticity guaranteed. A fantastic display piece.  

SD07        Size: 1-5/8"

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

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 Tietea singularis, petrified Tree Fern. trunk section from the Maranhão Basin, NE Brazil. This tree fern was from the Pedra do Fogo Formation and is Permian age age (265 MYA). One end is polished and the other is sanded. The interior is highly vascular with unqiue pores and channels that have been silicified into agate. The exterior trunk section nicely preserved. Trunk section length is 4-3/8" in length and makes a great display.  This piece exhibits exceptional preservation and color. Authenticity guaranteed. An exceptional old collection display piece!  Note - this item weighs 10 lbs and will not have automatic free shipping.  Please request a quote. Shipping in the cart will be updated soon.  

PW23     SIZE:  5-3/8" x  4-3/4"  x  4-3/8" long

Note - Adding 23 petrified wood specimens in November 2023 --> Link to petrified wood

An EXTRA LARGE, exceptional natural Cranaosphinctes ammonite showing excllent external design from Madagascar. The natural shell is well preserved and polished. An incredible display item!  Museum piece. Authenticity guaranteed.

X270 BoP     Size: 9-1/2""  (3-1/2" thick)   Weighs 6 lbs.

Note - International shipping will require a supplement.

A Top Quality Scapanorhynchus texanus, an extinct Goblin shark tooth from Dallas Co., Texas. An excellent example of this Late Cretaceous Kamp Ranch Fm. shark. An anterior tooth with a striated crown. Authenticity guaranteed. Perfect tooth. 

T363          SIZE: 1/2"

Note - Adding 100+ new Texas shark teeth in October 2021.   Link to Texas shark teeth

A nicely prepared, rare Dechenella burmeisteri trilobite. A scarce species! A Middle Devonian (380 mya) trilobite from Djebel Issoumour area, Atlas Mts., Morocco. Authenticity guaranteed.

XM22        Size: 1-1/8"

A high quality, rare spiny Ceretarges trilobite from Morocco. It is beautifully prepared to fully exposed the long & free standing spines and large elongated eye appendages. The Devonian trilobites from Jebel Issoumour deposits are world renowned for their incredible preservation and beauty. A Middle Devovian trilobite (380 mya).  A rare species. An incredible museum quality specimen at an affordable price. One of my favorite species! Authenticity guaranteed.

XM01 BoP       Size: 1-3/8"

A beautifully prepared Comura bultyncki trilobite. Dozens of large spines fully exposed requiring many dozens of hours of air abrasion. One of the most difficult trilobites to prepare. A very ornate spiny trilobite design with nice compound eyes! Excellent shell and spine preservation. Good size. A rare species! The ultimate Middle Devonian (380 mya) spiny trilobite from the Oufaten area, Atlas Mts., Morocco. Authenticity guaranteed. One of my favorite spiny trilobites! Authenticity guaranteed.

XM42          Size: 1-3/4"

An EXCELLENT early Cretaceous ammonite from Germany showing intricate structure. Excellent color! Unique uncoiled design. A fantastic display item! 

X267  BoP       Size: 3"

 A HUGE Hybodus dorsal spine - exceptional size! Nicely articulated and preserved. Incredibly sized. Note strong longitudinal grooves on the sides.   

M1185           SIZE: 8"+

 A GEM, Hybodus dorsal spine - extra large size! Exceptionally articulated and preserved. Incredibly complete without repair. Note strong longitudinal grooves on the sides. Museum Quality 

M1183          SIZE: 7-7/8"

 A GEM, Hybodus dorsal spine - extra large size! Exceptionally articulated and preserved. Incredibly complete without repair. Note strong longitudinal grooves on the sides. Museum Quality   

M1181          SIZE: 7-5/16"