Paleontica Community

I saw these rock markings in Western Australia. We were walking along the bottom of one of the gorges in Karijini national park, among very ancient banded ironstone (see 3rd picture). We were told by our friend that these could not be fossils as the rock was too old. Can anyone explain what they might be ?

These look like fossilized jellyfish to me

My inclination would be to take them for identification to the Queensland Museum;
Grey & Melbourne Streets
South Bank
South Brisbane
Australia
PO Box 3300 South Brisbane BC Q 4101
+61 (0)7 3840 7555

I would say they are from the Precambrian era. But I would do as Pterosaur said, take them to the museum!
Greetings,
Thomas.