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Orthoceras are extinct members of the cephalopod class. These primitive sea creatures are similar to the modern chambered nautilus, but grew a straight shell rather than a coiled one. Now extinct, the 345 - 395 million year old Devonian age orthoceras, meaning "straight horn", is an ancestor of the squid and octopus.
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(Click Photo to Enlarge)
Name: Orthoceras sp.
Geologic Age: ORDOVICIAN
Location: Hunan Province, China
Size: 8 1/8" long!
Description: Very nice specimen that is fully inflated...
Orthoceras23 - $30.00
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(Click Photo to Enlarge)
Name: Orthoceras sp.
Geologic Age: ORDOVICIAN
Location: Hunan Province, China
Description: Very nice specimen that is fully inflated...
Orthoceras 32 - $45.00
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(Click Photo to Enlarge)
Name: Orthoceras sp.
Geologic Age: ORDOVICIAN
Location: Hunan Province, China
Description: Very nice specimen that is fully inflated...
Orthoceras 33 - $45.00
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(Click Photo to Enlarge)
Name: Orthoceras sp.
Geologic Age: ORDOVICIAN
Location: Hunan Province, China
Description: Very nice specimen that is fully inflated...
Orthoceras 35 - $45.00
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(Click Photo to Enlarge)
Name: Orthoceras sp.
Geologic Age: ORDOVICIAN
Location: Hunan Province, China
Description: Weird specimen that has an offset hump in the middle!
Orthoceras 38 - $45.00