The small heteromorphic ammonite Karsteniceras aequicostatum n. sp. (open spired shell with uniform, simple ribs) from the Barremian of the Villa de Leyva region, Colombia, is described.

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Scripta Geologica

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Vasícek, Z., & Hoedemaeker, P. J. (2003). A new Karsteniceras from the Barremian (Lower Cretaceous) of Colombia. Scripta Geologica, 125, 141–143.