Biostratigraphy and evolution of the Momipites‐Caryapollenites lineage in the early tertiary in the Wind River Basin, Wyoming
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Abstract
Sequential morphologic changes in pollen of the Momipites‐Caryapollenites lineage from Paleocene strata in the Wind River Basin of Wyoming appear to reflect evolution within the family Juglandaceae. The stratigraphic occurrence of the species within this complex permits the establishment of six biostratigraphic zones that can be correlated between outcropping and subsurface sequences within the basin and to surrounding areas.
Trends involving changes in shape and size of the pollen and in structure of exine at the poles proceed from a basic form of Momipites to six other distinguishable species. The genus Caryapollenites appears to have been derived from the basic form of Momipites by changes in size and development of heteropolarity in pore position.
Species of Momipites described as new are M. wyomingensis, M. waltmanensis, M. ventifluminis, M. actinus, M. anellus, and M, leffingwellii. The genus Caryapollenites is redescribed and C. prodromus, C. imparalis, C. inelegans, and C. wodehousei are described as new.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Biostratigraphy and evolution of the Momipites‐Caryapollenites lineage in the early tertiary in the Wind River Basin, Wyoming |
| Series title | Palynology |
| DOI | 10.1080/01916122.1978.9989167 |
| Volume | 2 |
| Issue | 1 |
| Year Published | 1978 |
| Language | English |
| Publisher | Taylor & Francis |
| Description | 20 p. |
| First page | 93 |
| Last page | 112 |
| Country | United States |
| State | Wyoming |
| Other Geospatial | Wind River Basin |