Anthropology #10?

Question

According to the anthropologists who discovered and lavbeled these fossil from Gran Dolina in Spain, the common ancestor of both Neandertals and anatomically modern Homo sapiens was?

Answer 1

According to the Gran Dolina anthropologists, Homo antecessor is the last common ancestor of Homo neanderthalensis and Homo sapiens.

EDIT for Jim Z, the second answerer.

According to the article:

"Fossils from the Gran Dolina (...) are from a hitherto unknown species of early human, according to the site's excavator (...) and his colleagues. They named the newly identified species Homo antecessor (...) and claim that it is directly ancestral to both modern humans and Neandertals."

"If the Gran Dolina fossils do represent a new species, the human family tree must be revised."

though,

"Most paleoanthropologists see Homo heidelbergensis as the common ancestor of both modern humans, in Africa, and Neandertals, in Europe",

the Gran Dolina scholars

"claim that another species, Homo antecessor, is the forebear of modern humans and Homo heidelbergensis."

" According to them, Homo antecessor may be descended from Homo ergaster, and both Homo erectus and Homo heidelbergensis are off the evolutionary line leading to modern humans."

Answer 2

It is Homo heidelbergensis.  Even that article suggested it "Homo heidelbergensis, that is the stem for both Neandertals and modern humans."  Antecessor was likely before that split.