Fig. 5
From: Analysis of septal spacing and septal crowding in Devonian and Carboniferous ammonoids

Numbers of percentages of the six distinguished groups with different modes of septal distance in the stratigraphically successive assemblages
From: Analysis of septal spacing and septal crowding in Devonian and Carboniferous ammonoids
Numbers of percentages of the six distinguished groups with different modes of septal distance in the stratigraphically successive assemblages