Biostratigraphy and evolution of the Momipites‐Caryapollenites lineage in the early tertiary in the Wind River Basin, Wyoming

Palynology
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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.

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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
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