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Grypania Spiralis (GRY7)
$1,800.00
Notes specific to this specimen: This piece shows clear segments of Grypania, a couple with the classic curving arc formed by this species. The most notable, however, is the clear “squiggly” segment in the top left. It is a perfect example of what’s been described as “desiccation” of the outer sheath along its length, resulting in impingement of the sheath between individual cells. It doesn’t get any more graphic than this!
SIZE: 2″ x 3″
NAME: Grypania spiralis
AGE: Paleoproterozoic Era / 2.1 billion years
UNIT: Negaunee Iron Formation
SITE: Empire Mine, Palmer, Michigan
Notes specific to this specimen: This piece shows clear segments of Grypania, a couple with the classic curving arc formed by this species. The most notable, however, is the clear “squiggly” segment in the top left. It is a perfect example of what’s been described as “desiccation” of the outer sheath along its length, resulting in impingement of the sheath between individual cells. It doesn’t get any more graphic than this!
SIZE: 2″ x 3″
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
| Name / Species | Grypania spiralis |
|---|---|
| Age | Paleoproterozoic Era / 2.1 billion years |
| Unit | Negaunee Iron Formation |
| Site | Empire Mine, Palmer, Michigan |
