Shastoceras
Encyclopedia
Shastoceras is an extinct genus of ammonite cephalopod found in Lower Aptian sediments in Northern California
.
It, like its close relative, Annuloceras
, is a heteromorph ammonite that strongly resembles Macroscaphites.
California
California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...
.
It, like its close relative, Annuloceras
Annuloceras
Annuloceras is an extinct genus of ammonite cephalopod. Its fossils are found in Lower Barremian sediments from California...
, is a heteromorph ammonite that strongly resembles Macroscaphites.