Ammonites

Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Subclass: Ammonoidea Two oxycone specimens with two visible whorls; Larger outer whorl and one small whorl of the umbilicus. Umbilicus is encrusted with sediment. Faint, curved ribs near the inner margin of the outer whorls. Ammonitic sutures are visible on both specimens. Thin, triangular aperture. One specimen has part of the outermost whorl broken.