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Actually if you erase the tiny face off of the glabella, you have a pretty cute line drawing of a trilobite. Probably a calymenid from the Silurian or the late Ordovician.
Still, the tiny face amuses me sufficiently to share as is.
#TrilobiteTuesday https://t.co/9ezT3KwVUl
A shallow, mostly sandy tank dedicated to Ordovician fauna, with walls high enough so guests can't touch them. the backdrop scenery would look like a tidal rock pool view
It would feature a few schools of colorful jawless fishes, and a pair of heteromorph ammonites.
Sacabambaspis is an extinct genus of jawless fish that lived in the Ordovician period.
Created this for my partners Historical Geology class, which had a project of what it would be like if you could time travel back to the Ordovician period and scuba dive.
#cephalopod #scubadiving #timetravel #scifiart #ordovician #deepsea #deepseacreatures #aiphotography
February 19, 1792, birthday of Roderick Impey Murchison, geologized in old Scotland. Based on his observations of fossils he proposed a new geologic period between the Ordovician & Devonian naming it Silurian after an ancient tribe in Wales
https://t.co/pQ9QwJuw7s
A new Opabinia relative has been discovered but this time in the Ordovician! Mieridduryn was found in Wales with soft tissues preserved. Its name means "bramble-snout."
#fossils
https://t.co/dBEFICbDy4
Today's Paleozoic Creature is the Orthoceras! Orthoceras is a Mid Ordovician cephalopod, which lived from 470-460 Mya!
A little paleoart of Lunataspis borealis, a newly ordovician species of horseshoe crab described by @FossilDetective et al., I'm really glad to see more knowledge on ordovician xiphosurans being published ! https://t.co/jqOWj8OSd9
Cladoselache is great and all, but thylacocephalans are seriously wild. An extinct class of predatory arthropods w/ enormous eyes, known from Ordovician to Cretaceous. Here's amazing material of the Jurassic Dollocaris, w/ reconstruction by Andrey Atuchin https://t.co/6IULVFlvYg
Answer, it's series of theca on stipes of graptolites! Coming from famed Dobb's Lin location in Borders of Scotland (aka Ordovician-Silurian boundary)
How It Started (Aphetoceras, 2018) vs. How It's Going (Plectoceras, 2021)
Both nautiloid cephalopods from the Ordovician. The nearly matching color schemes was unintentional
#paleoart
Gabriceraurus mifflinensis, an extraordinarily beautiful trilobite from the #Ordovician of #Iowa
art from @paleobyliam
#TrilobiteTuesday
@StevenDJBaumann
@ScientistMel
The Ordovician trilobite Gabriceraurus mifflinensis
#AnimalArtistsUnite
The Oldest sea scorpion is Pentecopterus from the Ordovician Winneshiek Shale in Iowa. Despite this acclaimed status, they were relatively derived meaning it's possible we can find earlier eurypterids in the Cambrian.
https://t.co/bM9WneURAm
#Fossils #paleontology
Also there's this, idk exactly what it is but it was found in stone transported to the area from the Arbuckles, so prob Ordovician?
Here's a terrifying giant nautiloid about to attack a woodlouse disguised as a trilobite. Just another day in the Ordovician seas.
The Silurian saw plants and animals emerge on land. Marine biodiversity recovered after the end Ordovician mass extinction. Huge coral reefs developed and fish evolved jaws. Very high CO2. Supercontinent Gondwana dominated the SH. No Ordovician on my chart! #EarthHistory 🌎🐟
favorite Ordovician sea creatures living around the warm seas 480 to 440 million years ago
the 40cm long conodont Promissum
the weird looking fish Sacabambaspis
the giant Cameroceras
the sea scorpion Megalograptus
say hi to them 🤠
#FossilFriday The Holotype of Hyolithes baconi from the Ordovician Trenton Fm. in Rock County, WI. Hyolitha is a particularly enigmatic group, but was recently classified as a lophophorate, making it closely related to brachiopods. Type Collection @ucmpberkeley
古生代が揃ったのでまとめとく。
①An angel and a demon in Cambrian period(カンブリア紀)
②An angel and a demon in Ordovician period(オルドビス紀)
③An angel and a demon in Silurian period(シルル紀)
#GoodOmens #GoodOmensFanArt