Where: Dona Ana County, New Mexico (35.1° N, 106.7° W: paleocoordinates 0.1° S, 37.0° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Panther Seep Formation, Virgilian (303.7 - 298.9 Ma)

• Panther Seep Formation type section is in Rhodes Canyon. The Panther Seep Formation lies conformably upon the Lead Camp Limestone Formation (in the Bear Peak area) and the two formations may interfinger locally. The Panther Seep Fm. is mostly a slope- and valley-forming unit containing a few ledge-forming beds of limestone and sandstone. Its outcrop pattern ranges in width from about 3/4 mile to 1.5 miles. Its thickness ranges from about 2370 feet at Lead Camp Canyon to about 2640 feet at Salt Canyon. It is 2390 feet thick at Ash Canyon. The formation is 15-22 percent sandstone and siltstone with minor amounts of conglomerate; 59-63 percent shale; 17-21 percent limestone; and 1-2 percent gypsum. "On the basis of reported fusulinids and on stratigraphic position, the Panther Seep Formation is mostly of Virgil age. The lower few hundred feet, however, may be of middle and late Missouri age, and the beds that overlie the upper gypsum beds may be of Wolfcamp age."

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, black, gray limestone

Size class: macrofossils

Collection methods: collection made as part of USGS survey of the region

Primary reference: G. O. Bachman and D. A. Meyers. 1969. Geology of the Bear Park Area, Dona Ana County, New Mexico. United States Geological Survey Bulletin 1271(C):C1-C46 [T. Olszewski/T. Olszewski/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 10005: authorized by Tom Olszewski, entered by Melissa Gibson on 07.02.2001

Creative Commons license: CC BY (attribution)