Cooke, C. W. 1949b. Two Cretaceous Echinoids from Peru. Journal of Paleontology 23, 84-86.

169069

Cooke, C. W.

1949

23: 84-86

Publication

from Kier & Lawson (1978)

Two new species of echinoids from the Ayavacas limestone member of the Moho formation in the Lake Titicaca region, Peru, are described, and it is suggested that the age of the Ayavacas limestone may be younger than Aptian (Cretaceous).

Echinoidea

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