English Social Sciences Anthropology homonin / hominin

Hi,
I was wondering whether “hominin” were synonymous with “homonin” in the following passage...
Thank you very much for any hint!

The social brain hypothesis argues that the complexities of * homonin *social life were responsible for driving the evolution of the early *hominin* brain from its essentially apelike beginnings to its modern form.
The theory offers a dynamic new perspective for exploring the evolutionary origins of fundamental social capabilities such as the formation of large, cooperating communities and the maintenance of high levels of intimacy and trust. Simultaneously, it informs on the specific cognitive abilities, such as theory of mind, that underpin these capabilities
(...)
“The notion of the distributed mind thus affords considerable potential for examining the socio-cognitive relationships structuring * homonin *and human societies...the extent to which cognition is gradually extended both into the material world and into the social world informs on the nature of what it is to be human”

taken from
Dunbar, R., Gamble, C., Gowlett, J. (Eds.). (2010). Social brain, distributed mind, New York, NY: Oxford University Press.