Fossil Ammonites, Fish, Orthoceras,
Trilobites and Other Fossils

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$18.00 FO300b  This is a neat find!!  Here is a nice quality fossilized Sand Dollar from Madagascar.  It measures over 2 3/4" x almost 2 3/4" x nearly 7/8" thick and has been nicely polished on the top surface to bring out the detail allowing for a great display. 

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This species of sand dollar is "Clypeasteroida" They are very beautiful specimens and have nice detail.  They are from Majanga, Madagascar and lived in the Jurassic period some 146 to 200 million years ago.

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Fossil Sand Dollar

$100.00 FO301b  This is a very nice, high quality Schafite in matrix.  This fossil is from South Dakota.  It measures 2 1/4" x 2" in a fossilized matrix measuring 8 1/2" x 5" x 4".  The Schafite has a natural, iridescent, pearl-like finish.  These fossils make great gifts or work wonderful as an educational tool for school, scouts or clubs.  Close observation will reveal several other partial to semi-complete fossils throughout the matrix.

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Ammonites are extinct members of the cephalopod group of mollusks. Only a limited number of species have survived to the present day which includes the squid and the chambered nautilus. Ammonites had a multi-chambered shell, and added more chambers as it grew, always living in the outer chamber.  They lived in the Cretaceous period some 63 to 130 million years ago.

schafite

Schafite

$35.00 FO302c  Here is a very nice specimen of South Dakota Baculite.  The fossil itself measures almost 4" x nearly 2 1/4" x almost 1 1/4" and has not been polished.  This fossil has a nice "fish scale like" color with good detail.  Overall, the specimen measures nearly 4" x 3 1/2" x almost 3".  A great way to begin your fossil collection.

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This fossil is a member of the Species Baculites compressus which is from the Cretaceous Period some 60 million years ago.  It is from the Upper Pierre Shale Formation of Meade County in South Dakota.

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South Dakota Baculite

$25.00 FO303b   Here is a very cool fossil rock plate with nice fossils showing.  It measures nearly 7 3/4" x almost 7" x 7/8" thick and is fully polished on all sides except the very bottom.  The plate has a good color blend of Gray, Black and White with lots of visible fossils.  A definite keeper for the fossil collector. 

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fossil

Fossil Rock Plate

$20.00 FO304b  This is a fossilized Trilobite in matrix from Morocco.  The specimen measures 2 1/4" long x nearly 1 3/8" wide in matrix that is over 3 1/2" x 2 1/8" x almost 1 1/2".  Sections of this fossil have been glued back together or otherwise enhanced but it does not detract from it's display. A very cool fossil for you to enjoy.

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Trilobites are hard-shelled, segmented members of Arthropoda and the class Trilobita that existed throughout almost all of the Paleozoic era, flourishing in the earlier part of it and slowly declining in the later part. The most common trilobites were about 2-7 cm (1-3.5 in) in length, but over their long history they ranged in size from 1 mm-72 cm (.04 in-28 in) and exhibited so much variation that they are classified into nine (or possibly ten) orders with more than 15,000 species. The smallest species are presumed to have been part of the free floating plankton, while the more common, mid-sized species probably walked along the sea floor filtering mud to obtain food, and the larger varieties may have been swimming predators.

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Trilobite

$115.00 FO305c  This is a complete fossilized Ammonite from Madagascar.  The exterior has been ground smooth and polished to show the suture lines. The Ammonite is a pretty brown color with the detailed tan suture lines The specimen measures 6 3/8" x 5 3/8" x over 1 1/2".  An excellent, above average quality item to display in your collection!

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Ammonites are extinct members of the cephalopod group of mollusks. Only a limited number of species have survived to the present day which includes the squid and the chambered nautilus. Ammonites had a multi-chambered shell, and added more chambers as it grew, always living in the outer chamber.  They lived in the Cretaceous period some 63 to 130 million years ago.

ammonite

Ammonite

$85.00 FO306b   Here is a good sized, excellent quality Fossil Mioplosus labracoides Fish from the Eocene Age from the Green River Formation, Lincoln County, Wyoming.  The highly detailed fossil fish measures 7 1/2" from head to tail x over 2 1/4".  This excellent specimen measures 9 3/8" x 5 1/4" on the outside of the matrix and is 3/8" thick.  These fossil fish lived some 50 million years ago and are found in a light colored Limestone. 

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View more Fossil Fish like this

    In southwest Wyoming (and parts of Colorado and Utah) in the Green River Formation are found some of the world's most outstanding specimens of fossil fish.  The Green River system was composed of three lakes:  Lake Ulinta, Lake Gosiute and Fossil Lake.  These Eocene Lakes lay in a series of intermountain basins formed by geological events that uplifted the Rocky Mountains during the early Tertiary time.
The Climate was much different from the desert-like climate of this area today.  Both the fauna (crocodiles, alligators, boa constrictors and some subtropical fish families) and the flora (such as large palm trees) indicate a climate much like that found along the Gulf Coast today.  Large amounts of ash found in the sediments indicate that volcanoes were particularly active at this time.
    
The fossils found in the Green River Formation are between 40-60 Million years old and are in excellent preservation.  The most common fish found in the formation is the Knightia, a herring-like fish.  They are found singularly or in large groupings. These groupings are referred to as "Mortality Layers" and are believed to have been caused by extensive ash fall-out after volcanic eruptions. Some of the other species of fish found in the Green River Formation are:  Phareodus, a carnivorous fish often found up to 2 feet in length and having many sharp teeth.  Mioplosus, a true perch, and Priscacara, a sunfish-like fish with stout dorsal and anal spines.  There are also turtles, stingrays, crocodiles and alligator gar-fish.
The fossils of the Green River Formation - each one unique - are some of nature's finest art. They are highly valued by collectors the world over.

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Mioplosus Fish

$18.00 FO307c  Here is a different item; a nice Weevil Cocoon fossil from Southern Australia.  This very cool specimen has an all natural exterior and a nice cavity.  It measures over 2 1/4" long x nearly 1 1/4" in diameter.  A great addition to your fossil collection.

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Weevil Cocoon fossils are commonly on the western coast of Eyre Peninsula in South Australia and can be found inland up to 60 kilometers. Called "clogs" locally in Australia, specimens have found under analysis to be the pupas of the weevil, Leptopius duponti. Over a long period of time the coating around the pupal cases is hardened and mineralized. The rock-hard pupal cases are later found exposed by natural erosion or excavation and are believed to be up to 100,000 years old.

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Weevil Cocoon

$100.00 FO308b  This is a very nice fossilized Orthoceras collage from Morocco from the Silurian Age about 400 million years ago.  The specimen has many highly detailed Orthoceras fossils in various sizes scattered throughout measuring from 2 1/4" to 4 1/2" long.  Overall, the matrix measures 10" x almost 6 1/2" x nearly 2" thick and is not polished.  Very cool!

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Orthoceras

$25.00

FO309c   Here is a beautiful Geisonoceras fossil from Madagascar.   This nice genuine Geisonoceras fossil has been nicely polished to show the signature "zig-zag" design of the chambers.  The large fossil measures almost 4 1/4" x nearly 3 1/2" x 1 3/8" thick and has a nice polish on both sides.  Very nice!

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Ammonites are extinct members of the cephalopod group of mollusks. Only a limited number of species have survived to the present day which includes the squid and the chambered nautilus. Ammonites had a multi-chambered shell, and added more chambers as it grew, always living in the outer chamber.  They lived in the Cretaceous period some 63 to 130 million years ago.

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Geisonoceras

$350.00 FO310c  This is something very different; a fossilized turtle from the Badlands of South Dakota.  This awesome turtle fossil has been carefully extracted from the matrix to expose the upper and lower portion of the specimen.  We believe the two round holes on it's top are what caused the demise of this turtle.  The exceptional specimen measures approximately 8 1/2" x nearly 6 1/2" x 2 1/4" thick and weighs almost 4 1/2 pounds.  A great educational tool or very cool keepsake!

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Fossil Turtle

$65.00 FO311b   This is a nice section of a Didymoceras cheyenense from Pennington County in South Dakota.  This lower section of the fossil has great detail including some reddish iridescence showing on the ribbed and bumpy outer surface.  This nice fossil Didymoceras cheyenense measures 3 3/4" x 3 1/2" x over 1 5/8" in diameter.  Close inspection shows some professional repair.  Nice fossils like this can be hard to come by; add this fine example to your fossil collection!    

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Didymoceras is an extinct genus of ammonite cephalopod from the Late Cretaceous Period, 74.3 million years ago.  The generic name is Latin for "paired horns".  It is one of the most bizarrely shaped genera, with a shell that spirals upwards into a loose, hooked tip.  It is believed to have drifted in the water vertically, moving up and down.

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Didymoceras

$20.00 FO312b  This is a very nice example of small fossilized Ammonites from Charmouth, Dorset in England.  These Ammonite fossils are species Promicroceras planicostae and were once living creatures from the Lias Jurassic Period.  This very detailed specimen measures approximately 3/4" x 5/8" and the much smaller one is 1/8" in diameter.  They rest in matrix that's 3 1/2" x 2 1/8" x almost 1 1/8".  A rare fossil that would make a nice addition to any fossil collection.

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Ammonites are extinct members of the cephalopod group of mollusks. Only a limited number of species have survived to the present day which includes the squid and the chambered nautilus. Ammonites had a multi-chambered shell, and added more chambers as it grew, always living in the outer chamber.  They lived in the Cretaceous period some 63 to 130 million years ago.

fossil

Ammonites

$150.00 FO313c   Here is something different for the Fossil collector.  This is a very nice piece of fossilized Coprolite, also known as "Dino Dung".  This interesting specimen has a very nice blend of color and a good design that resembles Petrified Wood.  It measures 8 3/4" wide x almost 5 1/2" x nearly 2 1/8" thick; weighs 4 3/4 pounds and has been polished on the front side here in our own lapidary department.  Take it home with you today.

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Coprolite

$110.00 FO314c   Here is a very cool fossilized Nautiloid from Madagascar.  This particular large fossil measures nearly 4 3/4" x 3 3/4" x 3 1/8" and has been polished on all sides.  The fossil is complete and has good detail and color.  A great educational tool or very cool keepsake.

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Ammonites are extinct members of the cephalopod group of mollusks. Only a limited number of species have survived to the present day which includes the squid and the chambered nautilus. Ammonites had a multi-chambered shell, and added more chambers as it grew, always living in the outer chamber.  They lived in the Cretaceous period some 63 to 130 million years ago.

nautiloid

Nautiloid

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