@article{journal,
author = {Santamar{\'i}a, R.},
title = {Los Ammonoideos del Cenomaniense superior al Santoniense de la plataforma nord-castellana y la cuenca navarro c{\'a}ntabra. Parte II. Sistem{\'a}tica: Acanthocerataceae},
year = {1995},
volume = {4},
pages = {15--131},
journal = {Treballs del Museu de Geologia de Barcelona},
keywords = {Ammonites, Upper Cretaceous, North-castillian platform, Navarro-Cantabrian basin, Taxonomy, Acanthocerataceae}
}