Hoploscaphite cheyennensis
Taxonomy: Phylum Mollusca, Class Cephalopoda, Subclass Ammonoidea,
Order Ammonitida
Geological Time: Upper Cretaceous
Size: Ammonite measures 70 mm across; concretion base 70 mm x
20 mm x 50 mm
Fossil Site: Fox Hills Formation, North Central, South Dakota
Item: AA048
Price: $125.00
Remarks: A striking scaphite with brownish and reddish fire opal
shell. |
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Three separate pieces |
Large ammonite on top. |
Small ammonite on side |
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The separate pieces apart |
This ammonite fits in the negative shell
shown in the next image |
Other side |
The separate pieces together |
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The other removable large ammonite.
Note fire opal both sides. |
This ammonite fits in the negative shell
shown in the next image |
The separate pieces apart. Note the
fire opal of the negative side of the shell. |
The separate pieces fit together |
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Hoploscaphites nicolletti
Taxonomy: Phylum Mollusca, Class Cephalopoda, Subclass Ammonoidea,
Order Ammonitida
Geological Time: Upper Cretaceous
Size: Spaphites are 25, 35, 70, 70, and 75 mm across; concretion
base 140 mm across by 100 mm depth; total height is 90 mm
Fossil Site: Fox Hills Formation, North Central, South Dakota
Item: AA057
Price: $425.00
Remarks: This is a beautiful prepared specimen with five ammonites
in three pieces. Two of the large ammonites can be removed from
or placed back in their natural place in the matrix.. |
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Hoploscaphite cheyennensis
Taxonomy: Phylum Mollusca, Class Cephalopoda, Subclass Ammonoidea,
Order Ammonitida
Geological Time: Upper Cretaceous
Size: Ammonite is 65 mm across; concretion is about 150 by 110
by 80 mm
Fossil Site: Fox Hills Formation, North Central, South Dakota
Item: AA055
Price: $200.00
Remarks: Another beautiful specimen with the nodule prepared
into two pieces that fit together. The fire opal is exhibited
on both the part and counterpart of the ammonite. |
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Discoscaphite conradi - SOLD
Taxonomy: Phylum Mollusca, Class Cephalopoda, Subclass Ammonoidea, Order
Ammonitida
Geological Time: Upper Cretaceous
Size: Ammonite is 35 mm across; concretion is about 95 by 40 by 55 mm
Fossil Site: Fox Hills Formation, North Central, South Dakota
Item: AA044
Price: $55.00
Remarks: Exhibits many angle-dependent colors with light refracted in the
shell.
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