|
Furnish |
1973 |
Permian stage names. In: A.Logan & L.V. Hills [eds.], The Permian and Triassic Systems and Their Mutual Boundary.
Canadian Society of Petroleum Geologists, Memoir 2: 522-548, 2 figs., Calgary.
|
|
|
Glenister & Furnish |
1987 |
New Permian representatives of ammonoid superfamilies Marathonitaceae and Cyclolobaceae.
Journal of Paleontology, 61 (5): 982-998, fig.1-4, 1tab.; Lawrence, Kansas.
|