Scale is in cm. Scale is in cm. This specimen comes from Early Triassic shales bleached by Cenozoic lateritization at Culvida Soak in the Canning Desert of Western Australia. Scale is in cm. Scale is in cm.
Scale is in cm.
The light colored zone is the medulla, which has sparser filaments than the greenish cortex. The thallus here is about 6 mm wide. D.C. Scale is in mm. Scale in mm. Scale in mm.