Bai, B.; Meng, J.; Zhang, C.; Gong, Y.-X.; Wang, Y.-Q.
taxonomy · topology · morphology · range · biogeography · geochronology · methods
Primary descriptions plus parsimony and Bayesian tip-dating analyses of Ceratomorpha; the two methods retain some topological and date disagreements.
A 2020 parsimony analysis recovers Ceratomorpha as Tapiroidea plus Rhinocerotoidea, whereas its Bayesian tip-dating tree is less resolved in several basal positions; the atlas treats this as a sampled topology, not a fixed origin or ancestor sequence.
claim:taxon:ceratomorpha:topologyThe ceratomorph character analysis includes Rhinocerotidae within the sampled “true rhinocerotoid” branch, while the living-species data combination independently treats the family as one extant ceratomorph lineage; neither analysis supplies a complete fossil family range.
claim:taxon:rhinocerotidae:topologyNew early Eocene material and a broad ceratomorph matrix place several sampled taxa within or near Rhinocerotoidea, while parsimony and Bayesian trees differ at basal nodes; the result does not make any one specimen the group’s ancestor or global first occurrence.
claim:taxon:rhinocerotoidea:topologyThe study’s most-parsimonious trees recover sampled Tapiroidea as monophyletic after excluding paraphyletic “isectolophids”, but Bayesian resolution differs; this supports a bounded topology claim rather than a universal membership list or first appearance.
claim:taxon:tapiroidea:topology