	Authors	Year	Title
	Furnish & Spinosa	1966	Historic Pennsylvanian Ammonoids from Iowa. Iowa Academy of Science, 73: 253-259, fig.1-2.
	Nassichuk & Spinosa	1972	Early Permian (Asselian) ammonoids from the Hare Fiord Formation, Northern Ellesmere Island. Journal of Paleontology, 46 (4): 536-544, fig.1-5, tab.1-3, 1pl.; Tulsa, Okla.
	Saunders & Spinosa	1978	Sexual dimorphism in Nautilus from Palau. Paleobiology, 4 (3): 349-358, 11 fig., Lawrence KS.
	Schiappa, Spinosa & Snyder	1995	Nevadoceras, a new Early Permian adrianitid (Ammonoidea) from Nevada. Journal of Paleontology, 69: 1073-1079, 5 figs., Lawrence, KS.
	Schiappa, Hemmesch & Spinosa	2005	Cisuralian ammonoid genus Uraloceras in North America. [Schiappa,T.A., N.T.Hemmesch, C.Spinosa & Nassichuk,W.W.] Journal of Paleontology, 79 (2): 366-377, 9 fig., 6 tab., Lawrence, KS.
	Spinosa, Furnish & Glenister	1970	Araxoceratidae, Upper Permian ammonoids, from the Western Hemisphere. Journal of Paleontology, 44 (4): 730-736, fig.1-3, tab.1, pl.109; Tulsa,Oklahoma.
	Spinosa & Nassichuk	1971	The Permian ammonoid Stacheoceras discovered on Ellesmere Island, Canadian Arctic. Bulletin of the Geological Society of Canada, 197: 89-93, fig.17, pl.16; Ottawa.
	Spinosa, Furnish & Glenister	1975	The Xenodiscidae, Permian ceratitoid ammonoids. Journal of Paleontology, 49 (2): 239-283, fig.1-22, tab.1-5, pl.1-8.
	Spinosa & Glenister	2000	Ancestral Araxoceratinae (Upper Permian Ammonoidea) from Mexico and Iran. In: Wardlaw,B.R., Grant,R.E. & Rohr,D.M.: The Guadalupian Symposium, Smithsonian Contributions to the Earth Sciences, 32, 397-406, 6 fig., Washington.