Ferns From the Chinle Formation (Upper Triassic) in the Fort Wingate Area, New Mexico : revision of five Late Triassic ferns and a review of previous paleobotanical investigation...

von Ash, Sidney R.
Veröffentlicht 1969

Fossil plants from the Mudstone Member of the Santa Rosa Formation at the Principal Reference Section

von Ash, Sidney R.
Veröffentlicht in Principal reference section for the Santa Rosa formation of middle and late triassic age, Guadalupe County, New Mexico (1988)

Ferns from the Chinle Formation (Upper Triassic) in the Fort Wingate area, New Mexico

von Ash, Sidney R.
Veröffentlicht 1969

North American species of Tempskya and their stratigraphic significance

von Ash, Sidney R.
Veröffentlicht 1976

History of nomenclature and stratigraphy of rocks adjacent to the cretaceous-tertiary boundary, western San Juan Basin, New Mexico : By Elmer H. Baltz, Sidney R. Ash and Roger Y[...

von Baltz, Elmer Harold
Veröffentlicht 1966

History of nomenclature and stratigraphy of rocks adjacent to the Cretaceous-Tertiary boundary, western San Juan Basin, New Mexico

von Baltz, Elmer Harold
Veröffentlicht 1966

History of nomenclature and stratigraphy of rocks adjacent to the cretaceous-tertiary boundary western San Juan Basin, New Mexico

von Baltz, Elmer Harold
Veröffentlicht 1966

North American Species of Tempskya and Their Stratigraphic Significance : a description of two new species of the Early Cretaceous tree fern Tempskya and a discussion of the char...

von Ash, Sidney R.
Veröffentlicht 1976