Contains Genera:
Genus Callithrix[?] Genus Cebuella[?] Genus Saguinus[?] Genus Leontopithecus[?] Genus Callimico[?] - the Goeldis monkey
... dioxide into carbohydrates. Van Neil's proposal was confirmed 20 years later by using the O18 isotope of oxygen as a tracer label to follow the fate of oxygen atoms ...