Coloradisaurus [SEP] parent taxon
name had already been assigned to a moth, and so the animal was renamed. The genus was first named by David Lambert in 1983 and the type species is "Coloradisaurus brevis". It may in fact be an adult specimen of "Mussaurus". Cladistic analyses by Yates (2007), Yates "et al." (2010, 2011) and Novas "et al." (2011) found that "Coloradisaurus" is basal to the "Glacialisaurus"-"Lufengosaurus" clade within Massospondylidae.
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Taxon in disguise
In bacteriology, a taxon in disguise is a species, genus or higher unit of biological classification whose evolutionary history reveals has evolved from another unit of similar or lower rank, making the parent unit paraphyletic. This happens when rapid evolution makes a new species appear radically different from the ancestral group, so that it is not (initially) recognised as belonging to the parent phylogenetic group, leaving the latter an evolutionary grade.
While the term is from bacteriology, parallel examples are found throughout the tree of