Where: New Madrid County, Missouri (36.4° N, 89.6° W: paleocoordinates 37.9° N, 57.6° W)
• coordinate estimated from map
• hand sample-level geographic resolution
When: McNairy Formation, Late/Upper Cretaceous (100.5 - 66.0 Ma)
Environment/lithology: marginal marine; glauconitic, micaceous, pyritic, argillaceous sandstone
Size class: microfossils
Preservation: original sporopollenin
Reposited in the USGS
Collection methods: core, chemical, hydrochloric, hydroflouric,
Primary reference: N. O. Frederiksen, L. M. Bybell, R. A. Christopher, A. J. Crone, L. E. Edwards, T. G. Gibson, J. E. Hazel, J. E. Repetski, D. P. Russ, C. C. Smith, and L.W. Ward. 1982. Biostratigraphy and paleoecology of lower Paleozoic, upper Cretaceous, and lower Tertiary rocks in U.S. Geological Survey New Madrid test wells, Southeastern Missouri. Tulane Studies in Geology and Paleontology 17(2):23-45 [P. Jardine/H. Morck]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 232058: authorized by Phillip Jardine, entered by Hannah Morck on 16.10.2023
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Retitricolpites | |
"Retitricolpites" "sp. I" Van der Hammen 1956 | |
Holkopollenites chemardensis | |
Holkopollenites cf. chemardensis Stover et al. 1966 | |
Magnoliopsida | |
Tricolporites "sp. C" Cookson 1947
Tricolporites "sp. N" Cookson 1947 | |
Angiospermae | |
Proteacidites "sp. A" Cookson and Couper 1953
Proteacidites "sp. D" Cookson and Couper 1953 | |
Triatriopollenites "sp. B" Thomson and Pflug 1953 | |
Momipites "sp. A" Wodehouse 1933 | |
Casuarinidites "sp. A" Cookson and Pike 1954 | |
aff. Bombacacidites "sp. A" Couper 1960 | |
Plicatopollis | |
Plicatopollis cretacea Frederiksen and Christopher 1978 | |
Plicapollis | |
aff. Plicapollis "sp. A" Pflug 1953
Plicapollis usitatus Tschudy 1975 | |
Osculapollis aequalis | |
Osculapollis aequalis Tschudy 1975 |