Homo sapiens neaderthal was extincted by sapiens sapiens.
Other human species (now extinct):
 In Hinduism
In Hinduism humans are beleived to have existed for about 158.7 trillion years since Brahma who is currently 158.7 trillion years created humas immediately after he was born. Brahma's lives for 311 trillion 40 billion years. He lives for 100 of his own years which are equivalent to 311 trillion 40 billion years. 51 of his own years have past which gives the universe and manking an age of 158.7 trillion years.