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Collinson |
1955 |
Mississippian prolecanitid goniatites from Illinois and adjacent areas.
Journal of Paleontology, 29 (3): 433-438, fig.1,2, pl.45; Tulsa, Oklahoma.
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Smyth |
1951 |
A Viséan cephalopod fauna in the Rush Slates of Co. Dublin.
Proceedings of the Royal Irish Academy, 53, B: 289-309, 1fig., pl.11; Dublin.
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