Baculites (which means "walking stick rock") was a genus of ammonite that lived during the late Cretaceous period. It was heteromorphic: in its juvenile stages it had a coiled shell; as an adult, it was straight-shelled, tube-like that grew up to approx. 2 meters long (but some later forms had a cork-screw shape). Baculites was a wide-spread marine cephalopod mollusk that may have lived in colonies on the sea floor.
Last Modified 08/27/2008
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Name: Baculites sp.
Geologic Age: Cretaceous
Location: Pierre Shale Formation, Custer County, South Dakota
Description: Very nice, 13" long specimen with lots of natural mother-of-pearl shell showing. No restoration other than crack repairs. The gray "blobs" are are actually matrix concretions that couldn't be removed without destroying the baculite. Adds an interesting aspect to these specimens!South Dakota Baculites 8 Price: $225.00
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Name: Baculites sp.
Geologic Age: Cretaceous
Location: Pierre Shale Formation, Custer County, South Dakota
Description: Nice specimen that retains it's most of it's shell.. nice flashes of blues and green lay within this almost black specimen!South Dakota Baculites 11 Price: $65.00
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Name: Baculites sp.
Geologic Age: Cretaceous
Location: Pierre Shale Formation, Custer County, South Dakota
Description: Nice specimen that has lost it's outer shell.. it has been polished to show off the nice inner sutures!South Dakota Baculites 12 Price: $65.00
(Click Photo to Enlarge)
Name: Baculites sp.
Geologic Age: Cretaceous
Location: Pierre Shale Formation, Custer County, South Dakota
Description: Nice specimen that retains some of it's outer shell.. and has the inner sutures polished.South Dakota Baculites 13 Price: $65.00
(Click Photo to Enlarge)
Name: Baculites sp.
Geologic Age: Cretaceous
Location: Pierre Shale Formation, Custer County, South Dakota
Description: Nice specimen that has lost it's outer shell and had the inner sutures polished to bring out their beauty.South Dakota Baculites 14 Price: $85.00
(Click Photo to Enlarge)
Name: Baculites sp.
Geologic Age: Cretaceous
Location: Pierre Shale Formation, Custer County, South Dakota
Description: Nice specimen showing some of the outer shell as well as the polished inner sutures. There has been two crack repairs.South Dakota Baculites 15 Price: $75.00
(Click Photo to Enlarge)
Name: Baculites sp.
Geologic Age: Cretaceous
Location: Pierre Shale Formation, Custer County, South Dakota
Description: Nice 11 1/2" specimen that has been polished to show the beautiful inner sutures that are present.South Dakota Baculites 16 Price: $95.00
