Меловой период

Company M. & Tavera J.M. (2015) Lower Valanginian ammonite biostratigraphy in the Subbetic Domain (Betic Cordillera, southeastern Spain).- Carnets Géol., Madrid, vol. 15, nº 8, p. 71-88.

http://paleopolis.rediris.es/cg/1508/index.html