1 entry 1 source
Ammonitoidea
Open directlyWebster's 1828 Dictionary · 1828
Part of speech: noun (n.)
An extensive group of fossil cephalopods often very abundant in Mesozoic rocks. See Ammonite.
1 entry 1 source
Part of speech: noun (n.)
An extensive group of fossil cephalopods often very abundant in Mesozoic rocks. See Ammonite.