#Ossicles
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silverpebble2.bsky.social
Made a tiny Christmas tree out of fossils: the stars are crinoid ossicles, the trunk dinosaur bone & the branches are sharks’ teeth 🎄🦴
December 23, 2025 at 8:18 AM
silverpebble2.bsky.social
Younger daughter & I found these fossilised crinoid rock stars (segments of the ‘stem’ of Jurassic feather stars/sea lilies, related to starfish & sea urchins) in the gravel on the edge of a lake nr Peterborough UK. She used them to make an ammonite:
A spiral of crinoid ossicles from the Jurassic arranged in a spiral according to size on a white glazed plate
May 16, 2026 at 12:16 PM
palaeokatie.bsky.social
A wee selection of 330 million year old crinoid ossicles for #FossilFriday 🏴󠁧󠁢󠁳󠁣󠁴󠁿🖤
Portrait photo of a hand palm side up holding a selection of fossilised crinoid ossicles from the Blackhall Limestone, Fife. The crinoids are disc shaped (columnals/ossicles) and range in size and colour from grey to light brownish. Some have holes in the middle and resemble polo mints. Others have star shaped holes in the centre. These holes are the central canal where the animals nervous system etc would have been housed. Crinoids are echinoderms, marine animals related to starfish and urchins etc - they have five point radial symmetry, hence the star shape in some fossils. There is a tattoo of an ammonite in cross section on the palm.
February 9, 2024 at 7:52 PM
silverpebble2.bsky.social
Took younger daughter (who wants to be a paleontologist) to a lake near Peterborough last night. We found these Jurassic microfossils-teeny ammonites & crinoid ‘ossicles’-these little rock stars were part of the stems of crinoids/sea lilies-animals with 5 axes of symmetry related to sea urchins 🐚
Tiny ammonite & crinoid fossils-five pointed stars turned to rock , both from the Jurassic era on a hand to show their size
April 30, 2026 at 7:03 PM
palaeokatie.bsky.social
Carboniferous limestone appreciation 🖤
Photo of two fingers holding a creamy brown coloured piece of irregularly shaped carboniferous limestone. The rock is almost entirely composed of the fossilised remains of crinoids (marine animals - echinoderms related to starfish and urchins etc). The crinoids are mostly bits of cylindrical stem where ossicles are still joined and individual ossicles which appear disc shaped. some have been squashed and this happened before fossilisation. Blackhall Limestone, LLF, Fife.
November 17, 2024 at 12:03 PM
gorgsoros.bsky.social
but their lil skull jam became our ossicles!
September 5, 2026 at 12:43 AM
lowcostcosplay.bsky.social
StarFish

#lowcostcosplay #Starfish #fish #Echinoderm #Tubefeet #Ossicles #Stockings #Pantyhose #Tights #Leggings #pink #deep #sea #deepsea #art #delicious
February 18, 2025 at 9:21 AM
palaeokatie.bsky.social
Carboniferous crindroid!
Photo of two fingers holding a cylindrical fossil crinoid stem which resembles a wee one eyed robot shaped pal. The stem is made up of individual ossicles which are disc shaped. At the top of the stem is are some squashed almost disc shaped ossicles which have been preserved sitting on top of the stem. The way they are stacked makes a semicircular shape resembling a smile. Above this is a small circular cirri that resembles a wee bead, which looks like an eye. There’s a row of smaller ossicles/a stem attached to the left hand side. Crinoids are marine animals (echinoderms - related to starfish, urchins etc) and these Carboniferous stalked variety used the stem to attach to the seafloor. These cirri protruded from the stem and are through to be for helping anchor to the substrate, or for swimming/relocating.
December 31, 2024 at 8:37 AM
tetzoo.bsky.social
Several Lower Jurassic (Liassic) #plesiosaurs and #ichthyosaurs are present and have had repairs, though damage from bird droppings needs to be kept in check. The visibility of the giant sclerotic rings and 'ossicles' of the limbs are an oddity; it's still not clear why Hawkins chose to show them...
Plesiosaur and two ichthyosaurs, maintenance bridge in the background. The big ichthyosaur Temnodontosaurus looming towards a plesiosaur. An ichthyosaur seen from behind: this is Ichthyosaurus tenuirostris, today known as Leptonectes. The big Temnodontosaurus, foreparts only, showing eye with big sclerotic ring and flipper with ossicles and associated structures.
August 17, 2026 at 9:59 AM
palaeokatie.bsky.social
Carboniferous limestone appreciation 🖤
Landscape photo of two fingers holding a creamy brown coloured piece of irregularly shaped carboniferous limestone from West Fife. The rock is almost entirely composed of the fossilised remains of crinoids (marine animals - echinoderms) and small fragments of bryozoans (aquatic colonial invertebrates). There are some large stem fragments which are cylindrical in shape, as well as smaller ossicles which appear disc shaped. Some of the smaller ossicles resemble beads. The bryozoans appear almost like mesh or netting - this is the remains of the carbonate skeleton secreted by the bryozoans, which would have housed individual animals called zooids.
February 15, 2024 at 11:52 PM
echinoblog.bsky.social
A splendid example of Cretaceous goniasterid, Metopaster parkinsoni from the white chalks of KENT! You don't often find inact specimens like this-mostly individual ossicles. #echinoday
fossil starfish composed of a frame of blocky squarish pieces like a piecrust surrounding an interior of smaller pieces
September 12, 2025 at 3:48 PM
derekhill.bsky.social
my ossicles are hUmming
March 26, 2025 at 2:20 AM
carolinebowen.bsky.social
Three cheers for the ossicles! Hip-hip ...

🦋 #bskySPEECHIES #audiologists #otorhinolaryngologists #ENT
The three bone-coloured auditory ossicles: malleus (hammer), incus (anvil), and stapes (stirrup) just above the first joint of a white person's index finger indicating how tiny they all are, with the stapes the smallest.
December 31, 2024 at 1:22 AM
cambriancam.bsky.social
In NW Georgia collecting and studying Invertebrate fossils. I found many impressions of brachiopods, crinoid ossicles, and even occasional trilobite fragments in sandstone and ironstone layers. Still trying to determine the age with fossils. Could be Silurian or Mississippian.

(February 14th, 2026)
February 16, 2026 at 10:02 PM
mootspoints.bsky.social
New preprint comparing aDNA preservation and recovery rates during extraction from all three ossicles and the petrous. Congrats @compevohumang.bsky.social!
July 20, 2025 at 9:40 AM
punkademic.bsky.social
Tinnitus answers the question: What would it sound like if the most annoying person in the world lived in your ossicles?
March 21, 2025 at 12:11 PM
punkpaleo.bsky.social
This is an impression of the bony armor surrounding Stegosaurus' throat for this Fossil Friday! These small, bony ossicles would have served as valuable protection. This specimen is housed at the Prehistoric Museum in Price, Utah. (1/2)
September 8, 2023 at 1:32 PM
thros.bsky.social
My new beachcombing goal is star shaped crinoid ossicles 🔎
silverpebble2.bsky.social Emma Mitchell @silverpebble2.bsky.social · Dec 23
Made a tiny Christmas tree out of fossils: the stars are crinoid ossicles, the trunk dinosaur bone & the branches are sharks’ teeth 🎄🦴
December 23, 2025 at 8:59 AM
tweetingtruman.bsky.social
The #CatWordOfTheDay is Auditory Ossicles
#CatTrivia
#CatsOfBlueSky
June 23, 2025 at 3:06 PM
invertevo.bsky.social
RT. Fully funded PhD position in my lab to investigate the origin, composition and function of Ambulacrarian ossicles.
June 23, 2025 at 5:28 PM
ashpoust.bsky.social
Gastralia, ossified costal cartilage, eye ossicles, sesamoids...
May 6, 2025 at 7:02 PM
thecleric.bsky.social
Auditory ossicles. Obviously.
October 14, 2024 at 2:53 PM
bawstinchacha.bsky.social
The ossicles (three tiny bones in the middle ear), particularly the stapes (stirrup), are widely considered the only body parts that remain the same size from birth until death. 👂
March 20, 2026 at 10:32 AM