Spiders

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Aphantomartus sp.
Shelburn Formation
Sullivan County, IN
Pennsylvanian
 
Here is probably the best preserved Arachnid ever found from the fossiliferous coal fields of southwestern Indiana. This specimen measures 1/2" long and is currently being studied to identify the genus and species. All eight legs are displayed perfectly along with the pedipalpi. This specimen is also extremely 3-D.

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Lissomartus sp.
Shelburn Formation
Sullivan County, IN
Pennsylvanian
 
Here is probably the second best preserved Arachnid ever found from the fossiliferous coal fields of southwestern Indiana. This specimen also measures 1/2" long and is currently being studied to identify the genus and species. Seven of the eight legs are displayed perfectly along with the pedipalpi. This specimen is also extremely 3-D.

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Cryptomartus sp.
Shelburn Formation
Sullivan County, IN
Pennsylvanian
 
Here is a rarer type of an Arachnid found from the fossiliferous coal fields of southwestern Indiana. This specimen measures 1" long and is currently being studied to identify the genus and species. The abdomen is circular is shape, has great definition, and is extremely 3-D.