ramidus
Noun
Meaning
ramidus (plural ramidi)
(informal) Ellipsis of Ardipithecus ramidus. (an early hominid from the Pliocene)
Examples
Clark, G.; Henneberg, M. 'The life history of Ardipithecus ramidus: a heterochronic model of sexual and social maturation'.
In a study that assumes the hominin status of Ardipithecus ramidus, it has been argued the species represents a heterochronic alteration of the more general great ape body plan.
The implication of these interspecific differences is that A. ramidus would have most likely had a period of infant and juvenile socialisation different from that of chimpanzees.
The earliest fossils argued by some to belong to the human lineage are Sahelanthropus tchadensis (7 Ma) and Orrorin tugenensis (6 Ma), followed by Ardipithecus (5.5–4.4 Ma), with species Ar. kadabba and Ar. ramidus.
It has been described as a "probable chronospecies " (i.e. ancestor) of A. ramidus.
The size of the upper canine tooth in A. ramidus males was not distinctly different from that of females.