Original paper

The lower cretaceous ammonitina Olcostephanus, Leopoldia, and Favrella from West-Central Argentina

[Die unterkretazischen Ammonitinen Olcostephanus, Leopoldiaund Favrella aus dem westlichen Mittel-Argentinien]

Riccardi, A. C.; Westermann, G. E. G.; Levy, R.

Keywords

Cretaceousammonites, CretaceousOlcostephanusLeopoldiaFavrellaArgentinaCretaceous