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Belemnitida , Belemnitida (belemnites; class Cephalopoda, subclass Coleoidea) One order of extinct cephalopods in which the shell is internal and composed of a phr… Cryptodonta , Cryptodonta (phylum Mollusca, class Bivalvia) A subclass of bivalves most of which have thin, equivalve shells composed of aragonite. They have an am… Neorhabdocoela , Rhabdocoela (Neorhabdocoela; class Turbellaria, subclass Neoophora) An order of worms which possess a simple intestine. The pharynx is present. Most… stream order , stream order A measure of the position of a stream (defined as the reach between successive tributaries) within the hierarchy of the drainage network… Bennettites , Bennettitales An extinct gymnosperm (Gymnospermae) order ranging from the Triassic into the Cretaceous. They resembled cycads (Cycadophyta), and poss… Madreporaria , Madreporaria (Scleractinia; stony corals; class Anthozoa, subclass Zoantharia) An order of colonial (or, more rarely, solitary) corals, which always…
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NEARBY TERMS
Pharetronida