First early Mesozoic amber in the Western Hemisphere
Geology
- By:
- R.J. Litwin and S.R. Ash
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Abstract
Detrital amber pebbles and granules have been discovered in Upper Triassic strata on the Colorado Plateau. Although amber previously has been reported from Pennsylvanian, Jurassic, Cretaceous, and Tertiary strata, we know of no other reported Triassic occurrence in North America or the Western Hemisphere. The new discovered occurrences of amber are at two localities in the lower part of the Petrified Forest Member of the Upper Triassic Chinle Formation in Petrified Forest National Park, Arizona. The paper coals and carbonaceous paper shales containing the amber also contain fossil palynomorph assemblages that indicate a late Carnian age for these occurrences. -AuthorsAdditional publication details
- Publication type:
- Article
- Publication Subtype:
- Journal Article
- Title:
- First early Mesozoic amber in the Western Hemisphere
- Series title:
- Geology
- Volume:
- 19
- Issue:
- 3
- Year Published:
- 1991
- Language:
- English
- Larger Work Type:
- Article
- Larger Work Subtype:
- Journal Article
- Larger Work Title:
- Geology
- First page:
- 273
- Last page:
- 276