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
haq · @haq
132 followers · 2190 posts · Server kolektiva.social
Happy Black Country Pride Day to all the lovely Yam Yams out there!
I was reading a geology website, about Wren’s Nest, and my favourite bit was the image where they’ve labelled the location of Dudley 427,000,000 years ago with a big arrow, lol. Priorities!
#geology #Dudley #Silurian #WenlockWednesday #TheBlackCountry #BlackCountry #BlackCountryPride #BlackCountryPrideDay
#geology #dudley #silurian #wenlockwednesday #theblackcountry #blackcountry #blackcountrypride #blackcountryprideday
Paleo Priest 🇱🇹🇺🇦🏳️🌈 · @paleopriest
67 followers · 197 posts · Server sauropods.win
Silurian acanthodian scale. Possibly Nostolepis gracilis taxa. From Silurian, Pridoli, Lithuania (EU). Preparing for my Master's 2nd semester work presentation. Sadly I have found almost no acanthodian fossils (yet), so I could not go and take better pictures (with SEM).Hope to gather at least 20 scales before going there.
#Silurian #Pridoli #fossil #fossils #micofossil #microfossils #paleo #paleontology #sketch #identification #acanthod
#silurian #pridoli #fossil #fossils #micofossil #microfossils #paleo #paleontology #sketch #identification #acanthod
haq · @haq
99 followers · 1818 posts · Server kolektiva.social
My favourite fossils aren't records of the dead, they're fossils showing the processes of being alive. The graded spacing of the ribs on the whorl of this 430 million year old fossil snail shell show periods of faster and slower spiralling growth. Poleumita funatis, about 2x2cm. Some fossils show regrowth after damage from accidents, disease, or attempted predation. /life finds a way
#30DaysWild #FossilFriday #fossils #Silurian #WenlockWednesday #snails #gastropods
#30dayswild #fossilfriday #fossils #silurian #wenlockwednesday #snails #Gastropods
Paleo Priest 🇱🇹🇺🇦 · @paleopriest
64 followers · 182 posts · Server sauropods.win
Big worm tooth 😳
Silurian, Pridoli
Europe, Lithuania, Milaičiai
From around 1 kilometer deep
Scolecodont
#paleo #paleontogy #geo #geology #micro #microscopy #fossil #fossils #microfossil #microfossils #worm #tooth #teeth #scolecodonts #silurian #Pridoli
#paleo #paleontogy #geo #geology #micro #microscopy #fossil #fossils #microfossil #microfossils #worm #tooth #teeth #scolecodonts #silurian #pridoli
Paleo Priest 🇱🇹🇺🇦 · @paleopriest
63 followers · 179 posts · Server sauropods.win
Pretty view from the eye of the microscope ❤️
Silurian - Pridoli
Lithuania (EU), Milaičiai borehole ~1km deep
Pyrite, broken shells and etc...
#geo #geology #fossil #fossils #micro #microfossil #microfossils #paleo #paleontology #silurian #Pridoli #shell #shells #broken #microscopy #microscope
#geo #geology #fossil #fossils #micro #microfossil #microfossils #paleo #paleontology #silurian #pridoli #shell #shells #broken #microscopy #microscope
Paleo Priest 🇱🇹🇺🇦 · @paleopriest
63 followers · 175 posts · Server sauropods.win
Fossils from Lithuania. Silurian period, Pridoli.
Still searching for acanthods in the samples for my Master's thesis.
#lithuania #geo #geology #fossil #fossils #paleo #paleontology #silurian #Pridoli #microfossils #microfossil
#lithuania #geo #geology #fossil #fossils #paleo #paleontology #silurian #pridoli #microfossils #microfossil
Paleo Priest 🇱🇹🇺🇦 · @paleopriest
60 followers · 173 posts · Server sauropods.win
Learning sedimentary rocks and how to analyze their thinsections. Lithuania, Milaičiai ~940 meter depth. Silurian period South Baltic seasedimentary basin, coral reefs.
#microscope #microscopy #silurian #sedimentary #thinsection #fossil #fossils #rock #geo #geology #paleo #paleontology
#microscope #microscopy #silurian #sedimentary #thinsection #fossil #fossils #rock #geo #geology #paleo #paleontology
Vickysaurus · @Vickysaurus
37 followers · 202 posts · Server sauropods.win
#Ordovician and #Silurian friends in the #NaturkundeMuseumStuttgart . Lovely cephalopods and a very blue #eurypterid reconstruction. The #orthocones should be swimming vertically, but then again there wasn't enough space in the display for that.
#Ordovician #silurian #naturkundemuseumstuttgart #eurypterid #orthocones
Sam Hardly · @5am
31 followers · 197 posts · Server ohai.socialWe are on wooden ship,already burning the decks to power the engine. Today Gov has a new #sustainability plan,to turn smoke into new deck planks.Probably. Tho we need to burn the exiting planks faster ...
Plan B - we will also build miniature #nuclear #meltdown pods, AND sell them around the world for #profit
Gov has no great success rate with grand plans, but #silurian plan might work; to destroy us all
#climateCrisis #carbonCapture #technoDream #silurian #degrowth
https://www.theguardian.com/environment/2023/mar/30/government-gambles-on-carbon-capture-and-storage-tech-despite-scientists-doubts
#sustainability #nuclear #meltdown #profit #silurian #climatecrisis #carboncapture #technodream #degrowth
Vickysaurus · @Vickysaurus
28 followers · 164 posts · Server sauropods.win
An unfortunate biological scheduling conflict occurs on the coast of a #Silurian lagoon when #Pseudoniscus #horseshoecrabs and #Eurypterus sea scorpions come to the same beach to mate and spawn. Although they are relatives who share both this behaviour and eyes which lack acuity, but have perfect night vision, the sea scorpions have no qualms about using this accidental meeting to snack on their smaller cousins.
#silurian #pseudoniscus #horseshoecrabs #eurypterus #eurypterid #paleoart #myart #watercolour #cooksonia
Russell Garwood · @russell
308 followers · 205 posts · Server ecoevo.social
Also it's only when you have to fit its name into a #geological timescale that you realise just how short the #Silurian is
#geological #silurian #geology
Paleo Priest 🇱🇹🇺🇦 · @paleopriest
51 followers · 132 posts · Server sauropods.win
Rolling through life with adventures and #scolecodonts instead of #acanthods :D And, of course, security #kangal Dracul with #adventurecat Little Cloud. My Master's thesis should analyze #Silurian samples and search in them for the early #fish scales, but, alas, only #worm teeths appear there... And in quite huge quantities! I still hope the luck will turn on my side.
#paleontology #dog #lithuania
#scolecodonts #acanthods #kangal #adventurecat #silurian #fish #worm #paleontology #dog #lithuania
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
Thomas A. Hegna, Ph.D · @Thomashegna
562 followers · 508 posts · Server ecoevo.socialFor the curious, the taxa are:
Tropidocaris monocarinata Tchernyshev, 1936
Dinocaris arcostriatus Tchernyshev, 1936
Emmelezoe striata Tchernyshev, 1937
Aristozoe iwdelensis Tchernyshev, 1936
Aristozoe herculea Tchernyshev, 1936
And the transliterations are:
Chernyschev
Chernyshev
Tchernychev
Tchernyshev
Tschernyshev
Tshernysheff
#taxonomy #arthropoda #crustacea #paleontology #Palaeontology #nomenclature #phyllocarida #fossils #silurian
#taxonomy #arthropoda #crustacea #paleontology #Palaeontology #nomenclature #phyllocarida #fossils #silurian
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
John Orcutt · @GonzagaMEATLab
202 followers · 41 posts · Server ecoevo.social
#FossilAdventCalendar Day 2
#FossilFriday
Heading north along #Ontario's 🇨🇦 #NiagaraEscarpment brings us to the #BrucePeninsula, where these #Silurian #scorpions were found. Displayed in and named by scientists at the #RoyalOntarioMuseum, Eramoscorpius brucensis lived in the #ocean, but its relatives were among the first #animals on land. Its sturdy legs and the locality at which these #fossils were found hint that this #marine #scorpion may have already been venturing onto #beaches to #molt.
#fossiladventcalendar #fossilfriday #ontario #niagaraescarpment #brucepeninsula #silurian #Scorpions #RoyalOntarioMuseum #ocean #animals #fossils #marine #scorpion #beaches #molt
Per Ahlberg · @PerAhlberg
5 followers · 3 posts · Server sciencemastodon.comSome hashtags to help orient you:
I work in #VertebratePaleontology, with focus on the #Evolution of #JawedVertebrates and the #FishTetrapodTransition. The timeframe for my research essentially spans the #Silurian, #Devonian and #Carboniferous periods. Much of my work is based on #SynchrotronTomography carried out at the #EuropeanSynchrotronRadiation Facility, #ESRF.
#vertebratepaleontology #evolution #jawedvertebrates #fishtetrapodtransition #silurian #devonian #Carboniferous #synchrotrontomography #europeansynchrotronradiation #esrf
Paleo Priest 🇱🇹🇺🇦 · @paleopriest
18 followers · 90 posts · Server sauropods.winI looked at some reasearch done on Pridoli sedimentary environment in Lithuania. In 2008 no evidence for reefs was found. In 2015 two big ones and one small was found. It is interesting how step by step new discoveries fill in the gaps of knowledge about paleoenvironments. I think I will have a blast doing my Master's literature research part!
#Pridoli #Silurian #Lithuania #paleoenvironments
#pridoli #silurian #lithuania #paleoenvironments
Paleo Priest 🇱🇹🇺🇦 · @paleopriest
7 followers · 38 posts · Server sauropods.win
I need #paleo / #geo people help! I want to expand list of people I follow by adding #paleontologist s and #geologist s who work with #fish and/or #silurian period and/or #acanthodes #acanthodii #acanthodians and/or Silurian #paleoecology and/or Silurian Baltica sedimentary basin and/or Silurian Baltica #tectonics
♥️
#paleo #geo #paleontologist #geologist #fish #silurian #acanthodes #acanthodii #acanthodians #paleoecology #tectonics