Figure 4
From: A putatively extinct higher taxon of Spirotrichea (Ciliophora) from the Lower Cretaceous of Brazil
Volumetric reconstructions of Palaeohypothrix bahiensis gen. et sp. nov. holotype. (a) Posterior right quadrant of body showing undetermined surface structures (arrowheads) and part of the two ciliary brushes located between transverse cirri-like structures and left marginal ciliary brushes (asterisks). (b) Transversal section showing insertion of transverse cirri-like structures and left marginal ciliary brushes. (c) Insertion pores of left marginal ciliary elements (arrowhead). (d) Remnants of left marginal ciliature. Asterisks mark two ciliary brushes located between transverse cirri-like structures and left marginal rows set. (e) Detail of right margin of body. Black asterisks show putative marginal cirri; white asterisk shows supposed pellicular pores. Arrowhead points to rightmost ventral brush. (f) Dorsal side with arrowhead pointing to cortical ribs. Legends: CV contractile vacuole, LM left marginal ciliature, RM right marginal ciliature, TC transverse cirri-like structures.
