Smith, A. B., Simmons, M. D. & Racey, A. 1990. Cenomanian echinoids, larger foraminifera and calcareous algae from the Natih Formation, central Oman Mountains. Cretaceous Research 11, 29-69.
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Smith, A. B.; Simmons, M. D.; Racey, A.
1990
Cenomanian echinoids, larger foraminifera and calcareous algae from the Natih Formation, central Oman Mountains