Vickysaurus · @Vickysaurus
68 followers · 374 posts · Server sauropods.win
On a rainy #Devonian day, a #Tiktaalik father guards his eggs in a small forest river. Meanwhile,his hunting mate has her eye on a #bothriolepis . Another Bothriolepis is eating something buried in the river sediment,drawing the attention of a #Coccosteus.
I've wanted to draw Tiktaalik for a while. It always seems to get depicted pulling itself onto the land. While that was of course extremely important,surely they spent most of their time living quite happily underwater.
#devonian #tiktaalik #bothriolepis #coccosteus #paleoart #myart
Benjamin Carr, Ph.D. 👨🏻💻🧬 · @BenjaminHCCarr
950 followers · 2444 posts · Server hachyderm.io
The armor of armored #fish started out as part of the #nervoussystem
It turns out that in early branches of the fish family tree, like the sturgeon, the neural crest forms the bony armor that covers them, suggesting an ancient role in #bone formation that goes back to the armored fish of the #Devonian. Cells from the developing #spinalcord make the #sturgeon's bony, armored plates.
https://arstechnica.com/science/2023/07/the-armor-of-armored-fish-started-out-as-part-of-the-nervous-system/
#fish #nervoussystem #bone #devonian #SpinalCord #sturgeon
DailyMegafauna · @dailymegafauna
277 followers · 159 posts · Server synapse.cafe
Today's #mega...er... organisms...are prototaxites. These large, columnar fossils date to 240-350 million years, and stood 24 feet tall and 3 feet wide when they were alive. During this time period, both plants and animals on land were still quite small--meaning that #prototaxites formed the dominant feature of the land during the #Silurian and #Devonian periods.
But what exactly were these giant spires? First described in 1859, they were originally thought to be very early trees. However, their internal structure of tiny, criss-crossing tubes suggests that this is not correct. Chemical analysis also indicates that prototaxites gained their energy from diverse sources--ruling out the idea that they were plants.
This leads to the conclusion that prototaxites were giant, spire-like mushrooms--and the researchers who completed the analysis suggested that their height helped them to spread spores in an otherwise low-laying landscape.
An alternative explanation--perhaps attempting to account for the prototaxites' unusual height--suggests that they were a matted mixture of liverworts, fungus, and cyanobacteria that got rolled up by external forces and never stood upright. This has been disputed based on the fossils' anatomy and chemical makeup.
#mega #prototaxites #silurian #devonian
JH · @palaeotaku
255 followers · 203 posts · Server sauropods.win
My other artwork which I never uploaded here, is the Dunkleosteus. Commissioned by Dr. Brian Curtice.
Thank you to Mr. Russell Engelman for providing me with fruitful comments about this drawing.
#Arthrodira #Sciart #Paleoart #Paleoartist #Devonian #Placoderm #Paleozoic
#arthrodira #sciart #paleoart #paleoartist #devonian #placoderm #Paleozoic
Duncan Idaho 11 · @DuncanIdaho11
115 followers · 99 posts · Server starbase80.wtf
AutisticMumTo3 She/her · @AutisticMumTo3
120 followers · 2306 posts · Server mastodon.uk.comAncient Mega-Fish Was a Giant Swimming Mouth With a Tiny Body : ScienceAlert
#Dunkleosteus
#Devonian
#LateDevonian
#ArmoredFish
#Arthrodires
#Engelman
https://www.sciencealert.com/ancient-mega-fish-was-a-giant-swimming-mouth-with-a-tiny-body
#dunkleosteus #devonian #latedevonian #armoredfish #arthrodires #engelman
Colin Purrington · @colinpurrington
618 followers · 901 posts · Server flipping.rocks
Fossil of Tiktaalik roseae, an extinct lobe-finned fish found in 375-million-year-old rock on Ellesmere Island, Canada. Predatory, likely with an ability to hunt on land, too. I think at least five have been found. #FossilFriday #fossil #Devonian #paleontology #tiktaalik #fishapod #Nunavut #biology #nature
#fossilfriday #fossil #devonian #paleontology #tiktaalik #fishapod #nunavut #biology #nature
Chris White · @Ceedave
103 followers · 119 posts · Server sciencemastodon.com
Quincy or #BlueHills #Porphyry #Granite
An alkaline, nonorogenic granite intruded into #Avalonia in the #Silurian / #Ordovician as it cruised from peri-#Gondwana to #Laurentia, before assembling #Pangea in the #Acadian #Orogeny (#Devonian). It’s coarse, with the #phenocrysts of amphiboles(?) (possibly riebeckite?)…I’m no petrologist. From@the Eaton’s Pond conservation area@at the #Braintree #Quincy border. My photos.
#geology #igneous #Massachusetts #Boston #NewEngland #Fujifilm #photo
#bluehills #porphyry #granite #avalonia #silurian #Ordovician #gondwana #laurentia #pangea #acadian #orogeny #devonian #phenocrysts #braintree #quincy #geology #igneous #massachusetts #boston #newengland #fujifilm #photo
soil enjoyer · @mae
37 followers · 68 posts · Server not-ok.computer
Last weekend I visited the Sloan Gorge Preserve in Woodstock, NY to see the #Devonian Catskill Delta Complex
pretty #outcrops for #mosstodon and fans of #sedimentology #stratigraphy #geomorphology
#devonian #outcrops #mosstodon #sedimentology #stratigraphy #geomorphology
Thomas A. Hegna, Ph.D · @Thomashegna
568 followers · 543 posts · Server ecoevo.social
Happy #thylacocephalanThursday
A new paper on the internal anatomy of a Devonian specimen of Concavicaris woodfordi is out with @Ellivalcaris
The specimen is externally unremarkable, but displays patterns of differential mineralization that are consistent with the preservation of internal tissues. #Palaeontology #paleontology #fossil #arthropoda #crustacea #thylacocephala #oklahoma #devonian #ctscan
1/3
#thylacocephalanthursday #Palaeontology #paleontology #fossil #arthropoda #crustacea #thylacocephala #Oklahoma #devonian #ctscan
Henning · @zersorger
325 followers · 136 posts · Server scicomm.xyz
#throwbackthursday to the official type locality of the #Kellwasser (Late #Devonian) extinction event around the Upper Harz mountain range! Thread 👇
#earthscience #geology #devonian #kellwasser #throwbackthursday
Chris White · @Ceedave
83 followers · 85 posts · Server sciencemastodon.com
#Wapack Range, #Ashburnham, #Massachusetts #USA
#Woodland scene with stone wall on a foggy summer day, between #Watatic Summit (558 m) and Nutting Hill, near the #NewHampshire border.
The range comprises #Silurian to #Devonian #sedimentary rocks from the peri-#Laurentian Central Maine Trough, metamorphosed in #Appalachian #orogenies.
My #photo, #Fujifilm #XH1 16 mm f/1.4 at f/8 and 1/10 s ISO 400, IBIS on
#mountain #NewEngland #forest #stonewall #ferns #fog #landscape #trees #Metamorphic
#wapack #ashburnham #massachusetts #usa #woodland #watatic #newhampshire #silurian #devonian #sedimentary #laurentian #appalachian #orogenies #photo #fujifilm #xh1 #mountain #newengland #forest #stonewall #ferns #fog #landscape #trees #Metamorphic
rlfswdn · @rlfswdn
15 followers · 523 posts · Server mstdn.scienceUnique trilobite trident could be the oldest evidence of male sexual combat
https://phys.org/news/2023-01-unique-trilobite-trident-oldest-evidence.html
#trilobite #evolution #devonian
Rob Knell · @robknell
311 followers · 107 posts · Server ecoevo.socialGreat paper out in PNAS on the fabulous #Devonian #trilobite #Walliserops trifurcatus. This is a @nytimes article about it featuring commentary from yours truly (apparently I am now a palaeontologist) https://www.nytimes.com/2023/01/16/science/trilobite-trident-sexual-combat.html
#devonian #trilobite #walliserops
Kenneth De Baets · @djbirddanerd
267 followers · 72 posts · Server ecoevo.social
Here we analyze the impact of #facies, #region, #taxonomy, and #collection style over #size #distributions using diameter as a proxy of Late #Devonian #ammonoids in their entirety using non-metric #multidimensional #scaling and #PERMANOVA based on #Kolmogorov distance.
#facies #region #taxonomy #collection #size #distributions #devonian #ammonoids #multidimensional #scaling #permanova #kolmogorov
Aliide · @aliide
1177 followers · 188 posts · Server mstdn.social
Utterly delighted to have discovered the #mosstodon and #lichensubscribe hashtags.
This small contribution was taken back in October – greenery coating the rusty pink rocks around the Torquay coastline – a lovely swimming spot too #Torquay #UK #Devon #permian #devonian
#devonian #permian #Devon #UK #torquay #lichensubscribe #Mosstodon
Aliide · @aliide
1210 followers · 202 posts · Server mstdn.socialUtterly delighted to have discovered the #mosstodon and #lichensubscribe hashtags.
This small contribution was taken back in October – greenery coating the rusty pink rocks around the Torquay coastline – a lovely swimming spot too #Torquay #UK #Devon #permian #devonian
#devonian #permian #Devon #UK #torquay #lichensubscribe #Mosstodon
Aliide · @aliide
1177 followers · 188 posts · Server mstdn.socialUtterly delighted to have discovered the #mosstodon and #lichebsubscribe hashtags.
This small contribution was taken back in October – greenery coating the rusty pink rocks around the Torquay coastline – a lovely swimming spot too #Torquay #UK #Devon #permian #devonian
#devonian #permian #Devon #UK #torquay #lichebsubscribe #Mosstodon
Chris White · @Ceedave
29 followers · 15 posts · Server sciencemastodon.com
Pleistocene glacial striations on Devonian and Neoproterozoic rock in New England. Savin Hill, Middlesex Fells, and Mt Monadnock. See captions for details.
#rocks #glaciology #Boston #MiddlesexFells #MountMonadnock #sedimentary #Medford #Neoproterozoic #Devonian #Pleistocene
#rocks #glaciology #boston #middlesexfells #mountmonadnock #sedimentary #medford #Neoproterozoic #devonian #Pleistocene
Savanna van Mesdag · @savanna_van_mesdag
5 followers · 1 posts · Server ecoevo.socialHello all! I've come here to escape the grim hellscape that is Twitter... Keen to continue to hang out with fellow like-minded peeps to discuss and find out more about plenty of interesting things! 😁 😁 #PhD #PhDchat #Ecology #Biodiversity #Geochemistry #Chemistry #Steelslag #Brownfield #Industry #Wasteland #Soil #Botany #Plants #Entomology #Bees #Wildlife #Palaeontology #Fossils #Fish #Physiology #Morphology #Palaeobotany #Palaeo #Devonian #Millerosteus
#phd #phdchat #ecology #biodiversity #geochemistry #chemistry #steelslag #brownfield #industry #wasteland #soil #botany #plants #entomology #bees #wildlife #Palaeontology #fossils #fish #physiology #Morphology #Palaeobotany #palaeo #devonian #millerosteus