Middle Pennsylvanian brachiopods from the Mud Springs Mountains and Derry Hills, New Mexico.
Gehrig, John Leonard.
Middle Pennsylvanian brachiopods from the Mud Springs Mountains and Derry Hills, New Mexico. - Socorro, State Bureau of Mines and Mineral Resources, New Mexico Institute of Mining and Technology, 1958. - 24 p. 6 plates, maps. 28 cm.
Bibliography: p.22.
gs 59000185
Brachiopoda, Fossil.
Paleontology--Pennsylvanian.
Paleontology--New Mexico--Sierra County.
QE796 / .G4
564.80978967
Middle Pennsylvanian brachiopods from the Mud Springs Mountains and Derry Hills, New Mexico. - Socorro, State Bureau of Mines and Mineral Resources, New Mexico Institute of Mining and Technology, 1958. - 24 p. 6 plates, maps. 28 cm.
Bibliography: p.22.
gs 59000185
Brachiopoda, Fossil.
Paleontology--Pennsylvanian.
Paleontology--New Mexico--Sierra County.
QE796 / .G4
564.80978967