Pictured below are a few I have
seen in the informal Calathium member of the Fillmore
Formation, in the southern House Range.
External mold with filled-in siphuncle and body chamber. Alot of trilobite parts, but no nautiloid shell...?
chamber of an unidentified coiled nautiloid
Orthocones surrounded with trilobite parts
< Zone G-2 | Home | Chart | Zone J >