Tag Archives: Rocks (Stone/Rock?Geo Category)
Mount Erebus, Antarctica – Photo Gallery – Pictures, More From National Geographic Magazine.
“Orthoceras (“straight horn”) is a genus of extinct nautiloid cephalopod.* “A cephalopod is any member of the molluscan class Cephalopoda (Greek plural Κεφαλόποδα (kephalópoda); “head-feet”). These exclusively marine animals are characterized by bilateral body symmetry, a prominent head, and a … Continue reading