Catostomidae [SEP] parent taxon
Catostomidae
The Catostomidae are the suckers of the order Cypriniformes, with about 78 species in this family of freshwater fishes. The Catostomidae are almost exclusively native to North America. The only exceptions are "Catostomus catostomus," found in both North America and Russia, and "Myxocyprinus asiaticus" found only in China. In the Ozarks they are a common food fish and a festival is held each year to celebrate them. The oldest freshwater teleost, the bigmouth buffalo ("Ictiobus cyprinellus"), belongs to this family.
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