It’s so hard to see fossils and do a good job of imagining the extra muscle and tissue they probably had on them. An elephants skeleton would lead you to believe it was a very different looking animal, and there’s tons of cases like that.
Maybe in the case of endoskeletal creatures but these seem to be fossilized fairly close to what they would look like. I don’t know what muscle you’re thinking of that would be on a crinoid. Have you seen the modern ones? They’re called feathers for a reason lol
There's a bunch of images out there that reconstruct modern animals like dinosaurs are often imagined, with their skin shrink-wrapped to the bone and little to no fat. My personal favorite is this painting of swans by C.M. Kösemen.
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u/JaggedMetalOs 2d ago
They're not so far off modern sea lilies