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Thesaurus: proostracum

The anterior prolongation of the guard of the phragmocone of belemnites and allied fossil cephalopods, whether horny or calcareous. See Illust. of Phragmocone.

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phragmoconedefinitionallieddefinitionanteriordefinitionbelemnitesdefinitioncalcareousdefinitioncephalopodsdefinitionfossildefinitionguarddefinitionhornydefinitionprolongationdefinitionseedefinitionwhetherdefinitionproostracafamilyproofedneighborprooferneighborproofersneighborproofingneighborprooflessneighborproofreadneighborproofreaderneighborproofreadersneighborproofsneighborprooticneighborpropneighborprop rootneighborprop upneighborpropaedeuticneighborpropaedeuticalneighbor

Definitions

  1. n. The anterior prolongation of the guard of the phragmocone of belemnites and allied fossil cephalopods, whether horny or calcareous. See Illust. of Phragmocone.
  2. The anterior prolongation of the guard of the phragmocone of belemnites and allied fossil cephalopods, whether horny or calcareous. See Illust. of Phragmocone.
  3. n. The anterior prolongation of the guard of the phragmocone of belemnites and allied fossil cephalopods, whether horny or calcareous. See Illust. of Phragmocone.