country: USA
keyword time: Carboniferous, Early Carboniferous, Viséan
stratigraphy: St. Louis Formation, upper to uppermost Meramecian North American regional stage
location: Martin-Marietta Quarry near Cloverdale, PutnamCounty, Indiana
latitude: 39°32'19''N
longitude: 86°48'12''W
specimens: 1
kind: spine
remarks: Fig. 2