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Pentremites symmetricus (Hall, 1858)
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Products description
Here is a blastoid (“sea bud”) of the species Pentremites symmetricus from the Carboniferous of Illinois, USA. | |||
Location: | St. Clair Co., Illinois, USA | ||
| Size Fossil: | about 12 mm | ||
| Age: | Carboniferous , (Mississippian), Ridenhower formation (about. 345 Mill. y.o.) | ||
Product no.: 1859