Article: An occurrence of the auguritid ammonoid Celaeceras in the Lower Devonian of northern Spain

The rare Bohemian genus Celaeceras, a primitive auguritid ammonoid with a rather bizarre suture, has been found in late Emsian strata (Upper Zlichovian) in the Palentine Domain of northern Spain. This occurrence provides the first precise age for the genus, and considerably extends its palaeogeographical range in the Devonian of northern Gondwanaland.