Heteromorphic ammonites from the Barremian and Aptian strata of Colombia

Thirty seven species and subspecies of ammonites of the families Ancyloceratidae Gill, 1871, and Heteroceratidae Spath, 1922, are described. The following new taxa are described; Crioceratites (Paracrioceras) leyvaensis, C. (P.) royogomezi, C. (P.) cabreraensis, Pedioceras multicostatum, Pseudocrioceras guanense, Kutatissites creutzbergi, K. densecostatus compactus, K. etayosernai, K. grandis, K.? galanensis, Ammonitoceras galanense, A. giganteum, Hamiticeras ventrotuberculatum, H. longum, Hemihoplites (Matheronites) ridzewskyi sachicaensis, Colchidites riosuarezi, C. pseudovulanensis, C. guanensis and C. striatosulcatus. Moreover, one new genus, Laqueoceras gen. nov., with the type species L. laqueus sp. nov., is proposed.