Tanaka, K., Kanie, Y. & Obata, I. 1979. Maastrichtian and Danian echinoids from northwestern Madagascar. Bulletin of the National Science Museum Series C (Geology & Paleontology) 5, 25-50.
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Tanaka, K.; Kanie, Y.; Obata, I.
1979
Maastrichtian and Danian echinoids from northwestern Madagascar
Bulletin of the National Science Museum Series C (Geology & Paleontology