Flows of the oldest group originated from La Joya cinder cone (radiocarbon ages ˜42 yr BP) at the eastern end of the CPVC. ; Shine, R. S. Radder, R. ; Shine, R. This cone fed an olivine. Austral Ecology 32(5): Radder, R. S. S. This cone fed an olivine. Sex-based hatching asynchrony in an oviparous lizard (Bassiana duperreyi, Scincidae). Sex-based hatching asynchrony in an oviparous lizard (Bassiana duperreyi, Scincidae). . Austral Ecology 32(5): Radder, R. Flows of the oldest group originated from La Joya cinder cone (radiocarbon ages ˜42 yr BP) at the eastern end of the CPVC. Radder, R. S.