S3 - 3D model of MSNM V6217

Specimen MSNM V6217 comes from the Sakaraha Formation (Isalo IIIb subunit), which is Bathonian in age (Middle Jurassic). It has been collected in 2003, isolated from other fossils. It is distinguished by a unique elongate, spindle–like shape, and by a transverse section that remains subcircular up to one-third of the crown height. This specimen is the only representative of morphotype J8, taxon D, which should belong to Diplodocoidea (Dicraeosauridae?) or Titanosauria. MSNM V6217 might represent a new taxon, maybe a basal member of Diplodocoidea, and the oldest fossil record of the clade in Africa. This 3D model has been generated with photogrammetry processing and merging 50 photos together, divided in two groups, to obtain an object with about 1000000 faces. Description in the main text.