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Yes they are real, they are Jimbacrinus bostocki Crinoids from the Permian of Western Australia, probably the Cundlego Formation. Incredible death assemblage aka a thanatocoenosis.
They are still around. Do a search for "crinoinds" or "sea lilies". There are (mostly) sessile, stocked species and more mobile, non-stalked species (feather stars).
Most Crinoids stayed in one place, However some species had the ability to move to more favorable location, or to avoid predators. They are still around in some form, they LOOK like plants, but are actually an invertebrate animal.
This is an incredibly rare death assemblage. I have a collection of crinoid fossils from the Carboniferous period, and I think they are fascinating. They truly seem alien, but back in the day, the sea floors were carpeted with them.
Here’s an example of a modern crinoid.
I have a collection of Carboniferous crinoids, and I’m fascinated by the little critters.
Wow cool, I know there's a gentleman that owns some land on the Wabash River in Indiana and he found a bunch of these like this and they're on like slates and he cuts them out and they're in just incredible shape just like these. I know they sell them online and I think the name of the site is fossils for sale or fossils something or other. I sure would like to find them like that..mine are so deteriorated you can barely even tell what they are. Thanks for the info! good day mate!
It's where the Wabash River goes through Lafayette Indiana. There's a gentleman there who owns some land on the Wabash River and he found a huge amount of crinoids and they were found on slate rock. He was cutting them out and selling them and I believe he still is. They're in the exceptional condition as the ones posted here. I'm trying to remember the site I seen them on. I think it was called "fossils for sale" or something along those lines.
Southeast Indiana at/near the Ohio state line. It's called the Cincinnati Arch. The structure there has Ordovician limestone exposed in the core, and contains many many fossils, including brachiopods, crinoids, trilobites and coral. :)
Finding a Crinoid calyx is quite difficult, however, there is a location on Sugar Creek near Crawfordsville where the entire crinoid is preserved. This is private property unfortunately.
My suggestion for Crinoid fossil hunting in Indiana is along the shore where Allen’s Creek feeds into Lake Monroe. Walk up the shore from the Boat Ramp. This is also known as Crinoid Beach. Some of the stems are as big half dollars. Especially at the very western end of the shore facing the big water.
Wow. I've seen dozens of crinoid stem fossils and have a few of them I've found myself, but this is the first time I'm seeing the actual whole creature.
Yes. Intact crinoids are highly collectable. Their body is made of hundreds of plates(ossicles), so when they die, the ligaments and muscles holding the plates together rot away and the body disarticulates spreading the plates across the sea floor.
These organisms were prolific in the Paleozoic, and some limestone units are composed, nearly entirely, of the disarticulated remains(encrinites, crinoidal packstones/grainstones, etc.), so while fragments of them are very common, whole specimens of the calyx are kind of rare.
You know, you’re not far off when stating they look like they come from a different planet. Animals from that time look utterly foreign to our understanding of sea life toda.
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