Boreotrachyceras Explained

Boreotrachyceras is an extinct genus of ammonite cephalopod, belonging to the order Ceratitida.

The family to which Boreotrachyceras belongs, Trachyceratidae, has more or less involute, highly ornamented shells and ceratitic to ammonitic sutures.

Bibliography

• Book: W.J. . Arkell . B. . Kummel . C.W. . Wright . Treatise on Invertebrate Paleontology, Part L, Mollusca 4. Mesozoic Ammonoidea . Geological Society of America and University of Kansas Press . Lawrence, Kansas. 1957.