Anolis? Norops? Dactyloa?
"The Controversial Case of Anolis: The Debate on Taxonomic Classification".
by Cesar Barrio Amorós
The taxonomy of the genus Anolis is a genuine intellectual battleground where two visions of the biological world collide. On one side, Steve Poe defends a single genus (Anolis sensu lato) of more than 450 species, prioritizing stability and arguing that splitting the name does not add new information, only confusion (which is highly debatable). In the other corner, Kirsten Nicholson and her team propose dividing it into eight distinct genera (such as Norops or Dactyloa). For them, a single name conceals an evolutionary history spanning tens of millions of years; they maintain that these lineages diverged so long ago that treating them as a single group is like lumping all carnivores together. It is the age‑old debate between the convenience of a universal name and evolutionary precision. But the drama is not only biological; it is also legal. According to the original rules, the name Anolis belonged to the group of A. punctatus (what we now call Dactyloa). Had historical priority been followed, the famous green anole (A. carolinensis) would have lost its name. To avoid this chaos, the International Commission on Zoological Nomenclature (ICZN) intervened with a “big decree” (Opinion 1385), changing the type species to A. carolinensis. Therefore, even if Nicholson’s analyses tell us that the original order was different, current law dictates that the name Anolis must remain with the clade of the Carolina species, which includes almost all Caribbean species. In the end, current taxonomy is a mix of cutting‑edge science and legal diplomacy to prevent textbooks from having to be completely rewritten. In Costa Rica, where herpetologist Jay Savage spent much of his career, the solution he devised with his colleague Craig Guyer—and which his student Kirsten refined—is commonly used. But in other countries, such as Colombia, people are quite reluctant to adopt Nicholson’s method. Which solution do you prefer?
More complete explanation at:
https://www.crwild.com/single-post/anolis-norops-dactyloa
