Agaricocrinus is a common Mississippian crinoid, but very beautiful. This specimen is from the Edwardsville Fm of Indiana near Crawfordsville. Each arm has delicate pinnules that would filter water for food.
#FossilFriday
@echinoblog
The "starfish guy"(but also a little about a lot of marine invertebrates, #echinoday #echinoderms. Kaiju, comics enthusiast. Marine scientist, taxonomist, deep-sea researcher. Statements/posts made here are my own & DO NOT REPRESENT HOST organizations
Agaricocrinus is a common Mississippian crinoid, but very beautiful. This specimen is from the Edwardsville Fm of Indiana near Crawfordsville. Each arm has delicate pinnules that would filter water for food.
#FossilFriday
beige Limestone with an embedded Small Crustacean fossil (bit similar to a Shrimp) with track marks to the right lower angle Top left a 1β¬ coin for scale
#Fossilfriday
long armed Crustacean with track marks, Mecochirus sp.
1β¬ coin for scale
Upper Jurassic (lower thitonian) Location EichstΓ€tt
From the Jura-Museum EichstΓ€tt
(Visit higly recommended)
www.jura-museum.de (in german)
Two solitary rugose corals (one is only partially visible at the bottom left of the image). The scale shows that the larger specimen is around 2 cm long. The stalk by which the animals would have been attached to the substrate is in both cases pointing towards the top right.
#FossilFriday
Greetings from the Paleozoic Era! These are two rugose corals from the Ordovician of Sweden, then part of the continent of Baltica!
Rugosa is an entirely extinct group of corals that disappeared during the catastrophic mass extinction at the end of the Permian.
This Ectenocrinus simplex from the Ordovician Whetstone Gulf formation of New York is pyritized or replaced with fool's gold.
#FossilFriday
Seeing this post about felt nudibranchs reminded me of my daughter's assignment for freshman-level art class: a watercolor painting of an animal you'd find in Monterey Bay. She picked my favorite nudi, the Hopkins Rose. π¦
#wormwednesday
This curious worm uprooted itself from the sand like a carrot being pulled up by an invisible person, and rolled around in the current for a bit before starting to dig itself back in. You can see the sand grains slowly traveling over some mucous layer as it slowly reverses into the sand.
Big beauties at low tide
Hanging out with mollusks
Meal in hand
A lone star
More seastars! The abundance of them is such a joy as they are making a great comeback on the Oregon coast!
#seastars #starfish #marinelife #tidepools #oregoncoast #photography
#FossilFriday Verbeekiella australis, among the last of the Palaeozoic βhorn coralsβ belonging to the class Rugosa, from the Permian of Timor. The function of the unusual axial structure is unclear according to my colleague Brian Rosen.
#invertebrates
Itβs the Cambrian trilobite genus Olenellus from the Kinzer formation of Lancaster County, PA. Thereβs a surprising amount of Cambrian goodies from that formation but itβs hard to find outcrops. #fossilfriday
Over 120 people have been hospitalized due to measles in Utah alone. "It is, at this time a real threat in our state and something we can do to stop it," said Dr. Leisha Nolen, state epidemiologistβ¦ pleading for people to get themselves and their children vaccinated.β @jackiantonovich.bsky.social
More of Gary Williams' video feature on his work in the Gulf of the Farallons #octocoralFriday youtu.be/8miKI_tPwXw?...
More Gary Williams interviews by @calacademy.bsky.social on his softcoral research. He will be missed. #octocoralFriday youtu.be/p_jANeccyOc?...
short video about Gary Williams research #octocoralFriday youtu.be/_GPmXh18S7Q?...
#okeanos
stalked colonial animal with multiple polyps extended on white sediment
stalked colonial animal with multiple polyps extended on white sediment
A #deepsea sea pen, Acanthoptilum from French Frigate Shoals,
deep-sea soft coral animal with multiple feeding polyps on a stalk.
deep-sea soft coral animal with multiple feeding polyps on a stalk. closeup
UMBELLULA! deep-sea sea pen from 1600m Gardner Terrace in the North Pacific #octocoralFriday #okeanow
stalked sea pen with tentacled head
Deep-sea pen-UBELULLA! 1514 m #okeanos #saveNOAA Valador seamount #octocoralFriday
Lovely Umbellula from the North Pacific! #octocoralFriday www.inaturalist.org/observations...
Sorry Renilla! this striped nudibranch is looking for a snack! #octocoralfriday www.inaturalist.org/observations...
An almost picture perfect reason why sea pens are octocorals! 8 pinnate tentacles around the central mouth! #octocoralfriday www.inaturalist.org/observations...
More sea pen "friends" a commensal gobie! playing the "long game" on this Scytalium #octocoralfriday www.inaturalist.org/observations...
Sea pens are also home to numerous commensals! Such as this crab and other small critters! #octocoralFriday www.inaturalist.org/observations...
oooo! Indonesian Sclerobelemnon! #octocoralFriday www.inaturalist.org/observations...
A very fancy (or perhaps a juvenile) Cavernularia-of course it is from France! #octocoralFriday! www.inaturalist.org/observations...
A lovely Ptilosarcus from Mexico! #octocoralFriday www.inaturalist.org/observations...
Somewhere in the Atlantic, this sea pen ... #octocoralFriday Umbelulla! www.inaturalist.org/observations...
A lovely flomfy Sarcoptilus! #octocoralFriday www.inaturalist.org/observations...
oh! never seen such a festive sea pansy! and all the polyps areo out! Renilla koellikeri! #octocoralFriday www.inaturalist.org/observations...