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| Hoploscaphites nicolletti
Taxonomy: Phylum Mollusca, Class Cephalopoda, Subclass Ammonoidea,
Order Ammonitida
Geological Time: Upper Cretaceous
Size: Spaphites are 65, 55, and 50 mm across; concretion base
140 mm across by 70 mm depth; total height is 135 mm
Fossil Site: Fox Hills Formation, North Central, South Dakota
Item: AA051
Price: $150.00
Remarks: Three ammonites in a portion of a concretion from the
famous Fox Hills Formation. Note the beautiful opalized shells,
a gemlike
mineral called ammonlite. |
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| Sphenodiscus lenticulares Ammonite
Taxonomy: Phylum Mollusca, Class Cephalopoda, Subclass Ammonoidea,
Order Ammonitida, Family Scaphitidae
Geological Time: Upper Cretaceous
Size: Ammonites are 45 and 25 mm across; concretion is about 120
by 70 by 60 mm
Fossil Site: Fox Hills Formation, North Central, South Dakota
Item: AA038
Price: $60.00
Remarks: Note the detailed septa patterns of this professionally
prepared ammonite. |
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Hoploscaphites nebrascensis
Taxonomy: Phylum Mollusca, Class Cephalopoda, Subclass Ammonoidea, Order
Ammonitida
Geological Time: Upper Cretaceous
Size: Ammonite is 90 mm across; concretion is about 80 by 50 by 65 mm
Fossil Site: Fox Hills Formation, North Central, South Dakota
Item: AA037
Price: $175.00
Remarks: A particularly stunning specimen exbiting reddish fire opal shell.
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Discoscaphite conradi
Taxonomy: Phylum Mollusca, Class Cephalopoda, Subclass Ammonoidea, Order
Ammonitida
Geological Time: Upper Cretaceous
Size: Ammonite is 45 mm across; concretion is about 150 by 130 by 70 mm
Fossil Site: Fox Hills Formation, North Central, South Dakota
Item: AA019
Price: $120.00
Remarks: Two ammonites with one embedded in matrix. Note the many different
hues of color exhibited by the larger specimen.
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