$2,800.00
1 in stock
Notes specific to this specimen: Nice hand-sized slab with several showy and very distinct Grypania strings, some of which have characteristic curvature and arcs. In addition, some of the specimens have desiccation distortion along the sheath.
SIZE: 5″ x 6″
NAME: Grypania spiralis
AGE: Paleoproterozoic Era / 2.1 billion years
UNIT : Negaunee Iron Formation
SITE: Empire Mine, Palmer, Michigan
Notes specific to this specimen: Nice hand-sized slab with several showy and very distinct Grypania strings, some of which have characteristic curvature and arcs. In addition, some of the specimens have desiccation distortion along the sheath.
SIZE: 5″ x 6″
NAME: Grypania spiralis
AGE: Paleoproterozoic Era / 2.1 billion years
UNIT: Negaunee Iron Formation
SITE: Empire Mine, Palmer, Michigan
Documentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin.
Additional information
| Weight | 1 lbs |
|---|---|
| Dimensions | 4 × 8 × .3 in |
| Name / Species | Grypania spiralis |
| Age | Paleoproterozoic Era / 2.1 billion years |
| Unit | Negaunee Iron Formation |
| Site | Empire Mine, Palmer, Michigan |







