were I on earth...
which I am (mostly),
And if the outcrop was on earth. which it ain't,
And this was in the focal plane o' my handlense, which it kinda is,
I'd be looking up on "bryozoan". which I have, hum...Not saying nothing, just throwing out a word.
This is weird...I'm considering non organic probabilities as a default...but, you gotta admit, it is strange.
...diferential weathering of different mineralogic phases.? ..
But a fosssil in a sulfate environment?
Keep an open mind JMS, even if it hurts.