|
Fujikawa & Ishibashi |
1999 |
Carboniferous and Permian Ammonoids from Northern Thailand (Paleontological Study of Paleozoic Cephalopods in Southeast Asia - 1).
Memoirs of the Faculty of Science, Kyushu University, Series D, 30 (3): 91-110, 11 fig., pl.2-3, Fukuoka.
|
|
|
Waterhouse |
1964 |
A Permian ammonoid from New Zealand.
Journal of Paleontology, 38 (1): 149-150, fig.1, tab.1; Tulsa,Oklahoma.
|