Wenlockian and ludlovian age brachiopods from the roberts mountains formation of Central Nevada/ J.G. Johnson, A.J.Boucot, and M.A. Murphy

Johnson, J. G., Boucot,A. J.

Brachiopods and molluscs from geirud formation, member a ( upper devoian and Tournaisian)/ Maurizio. Gaetani

Gaetani, Maurizio

Rudists and Facies of the periadriatic Domain/ Riccardo Cestari , Dario Sartorio

Cestari, Riccardo

The strstigraphic succession, flora and Stephanian a rock at barruelo ( prov, palencia), N.w.Spain/ R. H. Wagner & C.F. Winkler Prins

Winkler Prins, C.F.

Silurian and lower devonian brachiopods, stucture and strtigraphy of the green pond outlier in Southeastern New York/ by Arthur J. Boucot, K. Lal. Gauri, and John Southard

Boucot, Arthur J., Lal Gauri, K.