Top Tweets for #Crinoidweek
Over 500 Glyptocrinus crinoids are found on this slab alone. The amazingly high percentage of complete specimens crammed together meant they were quickly buried by a turbidity current.
From the Cincinnati Museum Center
#Paleontology #CrinoidWeek
Perhaps the most amazing crinoid fossils in the world come from the Posidonia Shale. Fantastically dense colonies grew on driftwood and floated on the ocean for years. These crinoids grew up to 20 meters long!
#CrinoidWeek #FossilFriday
A crinoid from the Cabeço da Ladeira Paleontological Site in Portugal. This was the first site to reveal trace fossils of crinoid trails!
#CrinoidWeek #Paleontology
https://t.co/p20I36FriW
A beautiful crinoid, Cactocrinus woosterensis, from the Wooster Shale Member in Ohio.
#CrinoidWeek #Paleontology
https://t.co/useV3z9goY
The crinoids in Germany's Hunsruck Slate are pyritized but are extremely fragile. As such, X-rays can be used to peel back the layers and observe these echinoderms without disturbing them.
#Crinoidweek #Paleontology
Antedon pinnata was a free swimming, stem-less crinoid whose fossil remains can be found in the Late Jurassic Solnhofen Limestone. (Specimens YPM IP 525676 and 006468)
#CrinoidWeek #Paleontology
This week, we're waving our arms and dominating the seas. That's right, it's that time of the year for #CrinoidWeek! We'll celebrate these sea lilies and their beautiful fossils #paleontology
COOL collections discovery! Bathycrinid crinoid stalk holdfast on rock PLUS discinid BRACHIOPOD! fr. @InvertebratesDC off Oregon, 2826 meters! #deepsea! #echinoday, #crinoidweek IDs thanks to M. Eleaume & Ellen Strong!
#CrinoidWeek! The crinoids in Germany's Hunsruck Slate are pyritized but are extremely fragile. As such, X-rays can be used to peel back the layers and observe these echinoderms without disturbing them.
https://t.co/h4PwLTRuoy
Happy #FossilFriday and #CrinoidWeek
Here is the crinoid Platycrinites hemisphericus from the famous Lower Mississippian (Lower Carboniferous) Edwardsville Formation from Crawfordsville, Indiana. This was found and given to me by my friend Debbie Hamilton back in 2018.
#CrinoidWeek Perhaps the most amazing crinoid fossils in the world come from the Posidonia Shale. Fantastically dense colonies grew on driftwood and floated on the ocean for years. These crinoids grew up to 20 meters long!
https://t.co/B0IA3VLpQW…
#FossilFriday
#CrinoidWeek and #FossilFriday this week is this nice Early jurassic crinoid slab from #RedcarBeach like a lot of my nice fossils, I found it when I wasn't looking by sitting on it during a dog walk!
For #CrinoidWeek and #FossilFriday we're taking you to an industrial estate near Clitheroe, where the ground is made of crinoids!
During the Carboniferous the site was a sea floor mound with vast thickets of crinoids on the flanks. Here's just some of the calyxes we've found.
#CrinoidWeek The Kalana quarry is a double whammy in rarity due to its age (Silurian) and location (Estonia). As crinoids suffered a mass extinction at the end of the Ordovician-this site documents their gradual recovery.
https://t.co/8ydnugAfGv
#paleontology
#CrinoidWeek Crinoids from the Much Wenlock Limestone near Birmingham UK.
https://t.co/7BTOBSTowM
#Fossils
#CrinoidWeek
Here are two Phanocrinus formosus from the Upper Mississippian (Lower Carboniferous) Upper Monteagle Limestone from Alabama.
Lovely comparison with BOTH forms of crinoids, a feather star or "unstalked" crinoid in yellow on the left versus a stalked crinoid on the right! #echinoday #crinoidweek #okeanos St. Crois 513 m.
Endoxocrinus, an isocrinid shooing off an ophiotrichid brittle star, this helps explain why they are clear versus the sessile stalked crinoids 296 m Lang Bank, Puerto Rico, #okeanos #crinoidweek #echinoday
Intereresting stalked crinoid.. looks like isocrinid-but stalk is super long and rod like 366 m #okeanos Lang Bank, Puerto Rico #crinoidweek
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