#devonian
These are public posts tagged with #devonian. You can interact with them if you have an account anywhere in the fediverse.
@Emiliagnathus@circumstances.runJoin us in #Utrecht 
for a meeting on #reproducibility in #stratigraphy, #Earth 
and #climate history and #astrochronology. We offer workshops on #StratigraphicModelling, #Age-DepthModels and #CodeReproducibility for #earthscience professionals and students. If you want to join a field trip to the #Devonian and #Carboniferous of #Belgium 
, make sure to register quickly!
My 25 years of palaeoart chronology...
Some zooms into my "Denizens of the Beach and Copse" painting (2022), showing the Severn Estuary in the Late Devonian. Featured are a group of Elginerpeton, an Ichthyostega, fungi, slime moulds, algae, rhyniophytes, zosterophylls, lycopsids, & equisetids.
#Art #Painting #PaleoArt #PalaeoArt #SciArt #SciComm #DigitalArt #Illustration #Dinosaurs #Birds #Reptiles #Palaeontology #Paleontology #Devonian #FossilFriday #JurassicPark #JurassicWorld #Ichthyostega
My 25 years of palaeoart chronology...
The third and final Severn Estuary painting (2022), this time showing the Late Devonian. "Denizens of the Beach and Copse" features a group of Elginerpeton, an Ichthyostega, fungi, slime moulds, algae, rhyniophytes, lycopsids, equisetids, & others.
#Art #Painting #PaleoArt #PalaeoArt #SciArt #SciComm #DigitalArt #Illustration #Dinosaurs #Birds #Reptiles #Palaeontology #Paleontology #Devonian #FossilFriday #JurassicPark #JurassicWorld #Ichthyostega
"Something much worse than asteroids" is hype: the late-#Devonian and end-#Ordovician were less severe that the end-#Cretaceous, which was definitely† caused by an #asteroid. But this is good work that may help nail down the cause of the earlier #extinctions ... which were still pretty bad!
†Yes.
The rate of stars going supernova near Earth appears…
Earth.com
@RLIBlog@mastodon.socialHace 365 millones de años, en el Devónico tardío, surgió el Acanthostega gunnari, intermedio entre los peces de aletas lobuladas y los tetrápodos, aunque este no abandonó el agua porque no podía sostener su peso fuera de ella. Vivía en pantanos con poca agua y llenos de hierbas. 
SeismicShrimp #devonico #devonian
Things that seem fragile can endure. Trilobites dominated the oceans for millions of years and not a single one still exists.
This is Devonian coral. From a coral reef 400 million years ago, now part of the rocky mountains in BC. A delicate thing whose descendants stood the test of time
The #InsertAnInvert2024 prompt lens eyes made me think of trilobites. Not only do they have the earliest complex eyes we know of with their compound eyes with separate clusters of photo receptors (or ommatidia) each with its own lens to make mosaic-like pictures in their brains, but their lenses were hard and made of the mineral calcite! 
1/n
#linocut #printmaking #collage #sciart #washi #paleontology #trilobite #Cambrian #Devonian #MastoArt
Enjoy the videos and music you love, upload original…
www.youtube.comOur latest paper out in Nature Communications led by Dr Alice Clement:
A Late #Devonian #coelacanth reconfigures actinistian phylogeny, disparity, and evolutionary dynamics
There's been no doubt for some time that we're in the middle of a sixth #mass #extinction. Here are some numbers.
If we're very lucky, we'll stop at the level of the #Devonian extinction, the least severe of the Big Five. More likely we're headed for something on the scale of the #Ordovician or #Triassic. The #Cretaceous is in sight, and the #Permian is not out of reach. From an evolutionary time perspective it will *look* like the Cretaceous, practically as instantaneous as the Big Rock.
I confess, I really like the idea of #corvid #paleontologists digging up the #Anthropocene. Feathers gleaming under badlands dust, exciting cawing as dextrous claws scrape rock away from a flat-faced skull ... But I’m very much not okay with what we’re doing right now to make that happen.
Pop-sci coverage: https://www.forbes.com/sites/grrlscientist/2023/07/19/modern-sixth-mass-extinction-event-will-be-worse-than-first-predicted/
Journal article, open access: https://onlinelibrary.wiley.com/doi/10.1111/brv.12974
The report argues that almost half of the planet’s…
www.forbes.com
@mcmenguc@mstdn.socialI don’t understand the rejection of the word #anthropocene . Why mainstream intellectuals don’t debate the words #ordovician , #devonian or #cambrian The truth is, we are uncomfortable and emotional about the only #extinction we will witness and rejecting science. Anthropocene is a geological term. Geologists study rocks. They are telling us the crust of the earth has been altered. The new crust doesn’t need an #economy, #sociology or #psychology oriented term. It needs a #geological one.
@RLIBlog@mastodon.socialEl trilobite Erbernochile erbeni, del Devónico medio (397-385 MdA), tenía ojos cilíndricos que sobresalían como un tubo rodeado con unas 500 lentes. Así tenían un ángulo de visión de 360º en el plano horizontal. Un borde en el extremo le daría sombra, indicando que probablemente fueran diurnos. Moussa Direct Ltd. #devonico #devonian #trilobite
My parasitologist friend (who is on Bluesky @the-episiarch.bsky.social) told me about a parasitic flatworm that left its fossilized hooks on Lodeacanthus gaujicus and Asterolepis ornata from the Devonian of Latvia, and was described by Ieva Upeniece in 2001.
#parasitology #parasites #flatworm #fossil #palaeontology #invertebratepalaeontology #invertebrates #sciart #scientificillustration #devonian #palaeozoic #marinelife #prehistoric #placoderm
Pleuronoceras nodosum, a Middle Devonian nautiloid of the Eifel region which was described by Ernst Friedrich von Schlotheim in 1820.
#pleuronoceras #nautiloid #marinelife #cephalopod #eifel #nationalparkeifel #rheinlandpfalz #devonian #invertebratepalaeontology #invertebrate #palaeontology #sciart #scientificillustration
A Dunkleosteus, reconstructed with extensive facial soft tissue, about to bite into an ammonite. I painted this last year shortly after Engelman et al. 2023 was published, hence the stocky proportions.
#dunkleosteus #placoderm #fish #marinelife #palaeontology #devonian #prehistoric #palaeozoic #marineanimal #ocean #ammonite
When (micro)continents collide
#Silurian or #Devonian #metasediments / pellitic #schists / sulfidic schists
North Pack Monadnock, south central New Hampshire USA
Intensely folded rocks
Merrimack / Central Maine Trough smashed as #Avalonia joined Laurasia to start assembling Pangea in the #Acadian #Orogeny, about 375 million years ago.
Knowing some #geology makes hiking more fun!
Normally proportioned geochemist forelimb for scale
My #photo
Fujifilm X-H1 16 mm f/1.4 @ f/4 ⅛ s ISO 200 (IBIS)
Today's not-so-random portfolio artwork (following on from #Arthropleura) is a life-size model of a #Pneumodesmus (15cm long), which I built for MUSE – the Science Museum of Trento, in 2014.
#Art #Painting #PaleoArt #PalaeoArt #SciArt #SciComm #DigitalArt #Illustration #Dinosaurs #Birds #Reptiles #Palaeontology #Paleontology #Devonian
407-million year old fungus from the Rhynie chert named after Beatrix Potter. People who remember her books will know she loved fungi.
https://www.nature.com/articles/s41467-023-43276-1
"In honor of Helen Beatrix Potter (1866–1943) the well-known children’s author, conservationist, and amateur naturalist, who used her artistic abilities to draw and document a variety of Fungi."