Found on the beach in Capitola, CA. The tooth is wave-worn and fractured lengthwise. Pinniped of some sort seems most likely, although I haven't seen this fingerprint-like pattern of dark blotches and lines on the enamel surface of other fossil pinniped teeth from this locality. It's unclear if is simply mineral staining, or might be a diagnostic aid to identification. Boesse may have seen this before. Length is 43mm x 16mm across the break.