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USGS D9932, Clark County, Arkansas, USA
Lat/Long (Decimal) | 34.05,-93.1669 |
---|---|
Co-ordinates Derivation | based on nearby landmark |
Given Location | Arkansas, United States |
Mindat.org Region (for given coordinates) | Clark County, Arkansas, USA |
Collections
Collection | Reference | Stratigraphic Name | Comments | Lithology | Age |
---|---|---|---|---|---|
USGS D9932, Clark Co. [Saratoga Chalk] | Kennedy W. J., Cobban W. A. (1993) | Navarro - Saratoga Chalk | STRATIGRAPHIC RELATIONS: From the Saratoga Chalk, which regionally overlies the Marlbrook Marl, and is overlain by the Nacatoch Sand Fm, all of the Navarro Gp. AGE: Late Campanian on the basis of ammonite biostratigraphy; Nostoceras hyatti zone. STRATIGRAPHIC POSITION: From basal 30 cm (1 ft) above base. | lime mudstone | 83.5 - 70.6 Ma Late/Upper Cretaceous |
USGS D9940, Clark Co. [Saratoga Chalk] | Kennedy W. J., Cobban W. A. (1993) | Navarro - Saratoga Chalk | STRATIGRAPHIC RELATIONS: From the Saratoga Chalk, which regionally overlies the Marlbrook Marl, and is overlain by the Nacatoch Sand Fm, all of the Navarro Gp. AGE: Late Campanian on the basis of ammonite biostratigraphy; Nostoceras hyatti zone. STRATIGRAPHIC POSITION: From basal 30 cm (1 ft) above base. | lime mudstone | 83.5 - 70.6 Ma Late/Upper Cretaceous |
Recorded Fossils
Accepted Name | Hierarchy | Age |
---|---|---|
Pseudokossmaticeras galicianum species | Animalia : Mollusca : Cephalopoda : Ammonoidea : Kossmaticeratidae : Pseudokossmaticeras : Pseudokossmaticeras galicianum | 83.5 - 70.6 Ma Late/Upper Cretaceous |
Ammonoidea order | Animalia : Mollusca : Cephalopoda : Ammonoidea | 83.5 - 70.6 Ma Late/Upper Cretaceous |
References
Kennedy W. J., Cobban W. A. (1993) Ammonites from the Saratoga Chalk (Upper Cretaceous), Arkansas, Journal of Paleontology 67 3, 404-434 |
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!