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Fossil Sand Dollar and Clam (KH23)
Notes specific to this specimen: An excellent large polished Dendraster sand dollar with great color pattern, along with some unpolished Psuedocardium clams, plus another sand dollar that is unpolished. Both sand dollars show very cool natural petroleum stains. All mounted on native matrix with a flat bottom ready to display. Comes with an attractive information card.
Size: 4″x5″x2″
NAME: Dendraster (sand dollar) & Psuedocardium (clam)
AGE: Pliocene Epoch – 4 million years
UNIT: Etchegoin Formation
SITE: Kettleman Hills, California
COLLECTED: 2026
BY: Jon KramerDocuments: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$165.00 -
Crystalized Welks (W2)
Notes specific to this specimen: Fossil welks are much rarer than the clams found at Rucks Pit and most of them have no crystals. But, when you do find a nice crystal-line specimen, there’s nothing like it in the world! This is a single welk with a natural opening on its dorsal (top) allowing you to see the crystal lining of the shell and the gray sparite “floor” that was the sediment which partially filled the shell after the animal had died. Very unusual.
SIZE: 4″
Name / Species: Mercenaria permagna
Age: Pleistocene 2 Million Years
Unit: Nashua Formation
Site: Okeechobee County, Florida
Collected:
Collected by:Documentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$165.00Crystalized Welks (W2)
$165.00 -
Rainbow Stromatolite (RS4)
Notes specific to this specimen: Another one of the original discovery pieces, collected by us in August 2025. Unique honey-color colonies with unusual dark laminae. Never seen anything like this!
SIZE: 2″x 2″x .75″
Name Collenia sp. (possible new species)
Age Anamikean / Paleoproterozoic – 1.88 billion years
Unit Gunflint Iron Formation
Site Ontario, Canada
Date 2025Documentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$165.00Rainbow Stromatolite (RS4)
$165.00 -
Iron Stromatolites (MEOB2)
Notes specific to this specimen: You will receive an obelisk very similar to this one shown. We fashion only a limited number of obelisks out of this material because in the process we lose a lot of material. Even so, it is sometimes worth it as the cutting of obelisks creates a great 3-D view of the colonies. Here we have deep red agatization in these longitudinally cut colonies. These specimens attest to the classic origin of this material from the old Mary Ellen Mine in Biwabik, Minnesota, the type locality for the Biwabik Iron Formation. The mine shut down over 50 years ago. We find the material in the old discard piles that surround the pit.
Size: 2.25″ x 3″ tall
Name / Species: Collenia undosa
Age: Paleoproterozoic – 2.1 billion years
Unit: Biwabik Iron Formation
Site: Biwabik, Minnesota
Collected: 1992
Collected by: Jon KramerDocumentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$155.00Iron Stromatolites (MEOB2)
$155.00 -
Fossil Crab (PC12)
Notes specific to this specimen: This is a single natural crab with excellent open claws! No touch up or restoration.
Name: Pinnixa gallehiri
Age: Miocene Epoch, 10 million years
Unit: Monterey Formation (Aguajito Member)
Site: Carmel Valley, California
Date: 2016Size: Crab 1″ / Rock 5″
Documentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$155.00Fossil Crab (PC12)
$155.00 -
Single Fish – Split Pair GR201
Notes specific to this specimen:
Single Fish – Split Pair
NAME: Knightia, Dyplomystus and various other species
AGE: Eocene Epoch / 50 million years
UNIT: Green River Formation
SITE: Kemmerer, WyomingSize: 3″
Documentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$155.00Single Fish – Split Pair GR201
$155.00 -
Agatized Algae (AA5)
Notes specific to this specimen: This is a piece of a much larger specimen. While it is not complete, the color and texture of this piece is very interesting. It retains some of the original 3-D shape, which is rare in this preservation environment.
SIZE: 5″x 2″x 2″
NAME: Undescribed species
AGE: Jurassic Period- 165 million years
UNIT: Curtis Formation
SITE: Emery County, Utah
DATE: 2010Documentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin.
$155.00Agatized Algae (AA5)
$155.00 -
Rainbow Stromatolite (RS5)
Notes specific to this specimen: Another one of the original discovery pieces, collected by us in August 2025. Wild contrasts in the colors of these colonies.
SIZE: 2″x 4″x .5″
Name Collenia sp. (possible new species)
Age Anamikean / Paleoproterozoic – 1.88 billion years
Unit Gunflint Iron Formation
Site Ontario, Canada
Date 2025Documentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$150.00Rainbow Stromatolite (RS5)
$150.00 -
Two Fish GR302
Notes specific to this specimen:
Two Fossil Fish
NAME: Knightia, Dyplomystus and various other species
AGE: Eocene Epoch / 50 million years
UNIT: Green River Formation
SITE: Kemmerer, WyomingSize: 7″ x 9″
Documentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$145.00Two Fish GR302
$145.00 -
Fossil Sand Dollar and Clam (KH4)
Notes specific to this specimen: Beautiful and showy matrix piece with flat bottom so it stands nicely. This specimen has one large polished sand dollar and one infant sand dollar along with a great polished clam.
SIZE: 4″x 3″x 3″
NAME: Psuedocardium & Dendraster
AGE: Pliocene 4 million years
UNIT: Etchegoin Formation
SITE: Kettleman Hills, CaliforniaDocuments: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$145.00 -
Fossil Sand Dollar and Clam (KH2)
Notes specific to this specimen: Matrix piece that has a flat bottom so it stands nicely. This specimen has one large and one infant sand dollar with a nice polished clam that has great colors.
SIZE: 5″x 3″x 3″
NAME: Psuedocardium & Dendraster
AGE: Pliocene Epoch – 4 million years
UNIT: Etchegoin Formation
SITE: Kettleman Hills, California
DATE: 2023Documents: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$145.00 -
Fossil Crab (PC13)
Notes specific to this specimen: A unique specimen showing one excellent complete crab rightside up and another mostly-complete crab upside down. No touch up or restoration.
Name: Pinnixa gallehiri
Age: Miocene Epoch, 10 million years
Unit: Monterey Formation (Aguajito Member)
Site: Carmel Valley, California
Date: 2016Size: Crab 1″ / Rock 3″
Documentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$140.00Fossil Crab (PC13)
$140.00
