Morphological description, character conceptualization and the reconstruction of ancestral states exemplified by the evolution of arthropod hearts
Fig 5
The heart of Xibalbanus tulumensis („Crustacea“: Remipedia;).
All tiles are red cyan anaglyphs, use goggles to see images correctly. A: Volume rendering of the heart in the mid-posterior trunk segments (dorsolateral view, μCT); thinner regions at the border between two consecutive segments are visible beneath the overlap of the two respective tergites. B, C: Shadow projection of the outer (B) and inner (C) view of the heart in the anterior portion of the segment (lateral/medial view, μCT), arrowhead indicates longitudinal fibers of the epicard overlapping the semicircular cardiomyocytes. ca: cardiac artery; ost: ostium.