In biological sciences, particularly anthropology and palaeontology, the common name for all members of the genus Homo is "human".[citation needed]
The word homo is Latin meaning "human", and became to mean "man" in the gender-neutral sense in New Latin. The word "human" itself is from Latin humanus, an adjective cognate to homo, both thought to derive from a Proto-Indo-European word for "earth" reconstructed as *dhǵhem-.[6]
The binomial name Homo sapiens is due to Carl Linnaeus[7] (1758).[8]
Names for other species were coined beginning in the second half of the 19th century (H. neanderthalensis 1864, H. erectus 1892). A couple of recently discovered, recently extinct, species in the Homo Genus do not have accepted binomial names yet, Denisova hominin, and Red Deer Cave people. Classification of the Homo Genus into species and subspecies is poorly defined, highly disputed, and subject to political correctness and incomplete information, leading to difficulties in binomial naming, and the use of common names such as Neanderthal and Denisovan even in scientific papers.[9]