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