CONSTRUCTION AND USE OF PHYSICAL MODELS TO INTERPRET EARLY SILICOFLAGELLATE SKELETAL MORPHOLOGY AND DOUBLE SKELETONS
These models allow examination of various unusual early silicoflagellate skeletal features, such as the spine- and pike-like limb terminations and other spines that are slightly offset along the limbs. Two identical models easily fit together to show previously unknown double skeleton configurations, with basal structures that extend along the limbs in a manner different from later silicoflagellates. The terminal structures of each limb extend to the strut attachments of the sibling skeleton, with the pike-like structures positioned behind the spine offset. All spines point away from the middle of the combined structure and spine and pike components are analogous to later silicoflagellates. The limbs of C. tapiae bend to a design that may be transitional to the basal ring structures of later Corbisema.