#silurian — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #silurian, aggregated by home.social.
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creates semantic nodes and clusters #JAMES #CHICK #DOYLE headlines-world.com/advanced-sea... #SILURIAN #HYPOTHESIS www.perplexity.ai/search/new?q... Do you like aéPiot semantics? Donate to the aéPiot semantic platform: www.paypal.com/donate?busin...
MultiSearch Tag Explorer -
creates semantic nodes and clusters #JAMES #CHICK #DOYLE headlines-world.com/advanced-sea... #SILURIAN #HYPOTHESIS www.perplexity.ai/search/new?q... Do you like aéPiot semantics? Donate to the aéPiot semantic platform: www.paypal.com/donate?busin...
MultiSearch Tag Explorer -
El Arctinurus boltoni fue un trilobite del Silúrico medio (432-422 MdA) que superaba los 15 cm de longitud. Este espécimen pequeño de la lutita de Rochester, Nueva York, se ha conservado cubierto por braquiópodos.🏛️Museo Americano de Historia Natural #trilobite #silurico #silurian
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El Arctinurus boltoni fue un trilobite del Silúrico medio (432-422 MdA) que superaba los 15 cm de longitud. Este espécimen pequeño de la lutita de Rochester, Nueva York, se ha conservado cubierto por braquiópodos.🏛️Museo Americano de Historia Natural #trilobite #silurico #silurian
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El Arctinurus boltoni fue un trilobite del Silúrico medio (432-422 MdA) que superaba los 15 cm de longitud. Este espécimen pequeño de la lutita de Rochester, Nueva York, se ha conservado cubierto por braquiópodos.🏛️Museo Americano de Historia Natural #trilobite #silurico #silurian
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El Arctinurus boltoni fue un trilobite del Silúrico medio (432-422 MdA) que superaba los 15 cm de longitud. Este espécimen pequeño de la lutita de Rochester, Nueva York, se ha conservado cubierto por braquiópodos.🏛️Museo Americano de Historia Natural #trilobite #silurico #silurian
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El Arctinurus boltoni fue un trilobite del Silúrico medio (432-422 MdA) que superaba los 15 cm de longitud. Este espécimen pequeño de la lutita de Rochester, Nueva York, se ha conservado cubierto por braquiópodos.🏛️Museo Americano de Historia Natural #trilobite #silurico #silurian
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Tradicionalmente, se ha interpretado que el trilobite Deiphon nadaba y flotaba gracias a su glabela llena de aceite, pero tiene unos ojos diminutos y una terrible hidrodinámica que le hubieran entorpecido. No quiere decir que otros trilobites no lo hicieran. 📷GB3D Type Fossils #trilobite #silurico #silurian
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Tradicionalmente, se ha interpretado que el trilobite Deiphon nadaba y flotaba gracias a su glabela llena de aceite, pero tiene unos ojos diminutos y una terrible hidrodinámica que le hubieran entorpecido. No quiere decir que otros trilobites no lo hicieran. 📷GB3D Type Fossils #trilobite #silurico #silurian
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Tradicionalmente, se ha interpretado que el trilobite Deiphon nadaba y flotaba gracias a su glabela llena de aceite, pero tiene unos ojos diminutos y una terrible hidrodinámica que le hubieran entorpecido. No quiere decir que otros trilobites no lo hicieran. 📷GB3D Type Fossils #trilobite #silurico #silurian
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Tradicionalmente, se ha interpretado que el trilobite Deiphon nadaba y flotaba gracias a su glabela llena de aceite, pero tiene unos ojos diminutos y una terrible hidrodinámica que le hubieran entorpecido. No quiere decir que otros trilobites no lo hicieran. 📷GB3D Type Fossils #trilobite #silurico #silurian
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Tradicionalmente, se ha interpretado que el trilobite Deiphon nadaba y flotaba gracias a su glabela llena de aceite, pero tiene unos ojos diminutos y una terrible hidrodinámica que le hubieran entorpecido. No quiere decir que otros trilobites no lo hicieran. 📷GB3D Type Fossils #trilobite #silurico #silurian
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Low Sinuosity Meandering Rivers Before Vascular Plants - Cambrian Tapeats Formation, Arizona, USA
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https://doi.org/10.1130/B38336.1 <-- shared paper
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#water #hydrology #Arizona #bars #braided #streams #Cambrian #channels #clastic #conglomerate #floodplains #fluvial #hydromorphology #sedimentation #landscape #LowerCambrian #meander #mechanism #migration #mudstone #Paleozoic #Plantae #pointbar #rivers #sandstone #sedimentary #Silurian #sinuosity #UnitedStates #USA #TapeatsFormation
@GSA -
Low Sinuosity Meandering Rivers Before Vascular Plants - Cambrian Tapeats Formation, Arizona, USA
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https://doi.org/10.1130/B38336.1 <-- shared paper
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#water #hydrology #Arizona #bars #braided #streams #Cambrian #channels #clastic #conglomerate #floodplains #fluvial #hydromorphology #sedimentation #landscape #LowerCambrian #meander #mechanism #migration #mudstone #Paleozoic #Plantae #pointbar #rivers #sandstone #sedimentary #Silurian #sinuosity #UnitedStates #USA #TapeatsFormation
@GSA -
Low Sinuosity Meandering Rivers Before Vascular Plants - Cambrian Tapeats Formation, Arizona, USA
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https://doi.org/10.1130/B38336.1 <-- shared paper
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#water #hydrology #Arizona #bars #braided #streams #Cambrian #channels #clastic #conglomerate #floodplains #fluvial #hydromorphology #sedimentation #landscape #LowerCambrian #meander #mechanism #migration #mudstone #Paleozoic #Plantae #pointbar #rivers #sandstone #sedimentary #Silurian #sinuosity #UnitedStates #USA #TapeatsFormation
@GSA -
Low Sinuosity Meandering Rivers Before Vascular Plants - Cambrian Tapeats Formation, Arizona, USA
--
https://doi.org/10.1130/B38336.1 <-- shared paper
--
#water #hydrology #Arizona #bars #braided #streams #Cambrian #channels #clastic #conglomerate #floodplains #fluvial #hydromorphology #sedimentation #landscape #LowerCambrian #meander #mechanism #migration #mudstone #Paleozoic #Plantae #pointbar #rivers #sandstone #sedimentary #Silurian #sinuosity #UnitedStates #USA #TapeatsFormation
@GSA -
Low Sinuosity Meandering Rivers Before Vascular Plants - Cambrian Tapeats Formation, Arizona, USA
--
https://doi.org/10.1130/B38336.1 <-- shared paper
--
#water #hydrology #Arizona #bars #braided #streams #Cambrian #channels #clastic #conglomerate #floodplains #fluvial #hydromorphology #sedimentation #landscape #LowerCambrian #meander #mechanism #migration #mudstone #Paleozoic #Plantae #pointbar #rivers #sandstone #sedimentary #Silurian #sinuosity #UnitedStates #USA #TapeatsFormation
@GSA -
Upper #Silurian crinoid shell bed #Andalusia #Spain #echinoderm #fossil
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El tiempo geológico es esquivo. Intentamos medirlo utilizando fósiles, radioisótopos, yacimientos de cenizas volcánicas y secciones geológicas seleccionadas que mejor representan lo que ocurrió en un momento dado de la historia de la #Tierra. Estas secciones se denominan estratotipos y los límites importantes del tiempo geológico se marcan con puntas doradas. Hoy colocamos una punta dorada en un nuevo límite: el Aeroniano/Teliciano en el Silúrico inferior, en el afloramiento de El Pintado en Sierra Morena de #Sevilla, #Andalucía. #Silurian #geology #stratigraphy
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My 25 years of palaeoart chronology...
Here's a study of Kingnites, commissioned in 2022 for a project I cannot talk about yet. Kingnites, is an exceptionally large (1m long) Silurian polychaete annelid.
#Art #Painting #PaleoArt #PalaeoArt #SciArt #SciComm #DigitalArt #Illustration #Dinosaurs #Palaeontology #Paleontology #Kingnites #Silurian #Polychaete #Annelid #Worm #Fossil
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Los trilobites del género Sphaerocoryphe, que vivieron entre el Ordovícico medio y el Silúrico, tienen una enorme glabela bulbosa. 📷Skye McDavid #trilobite #ordovicico #ordovician #silurico #silurian
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El Acheronauta stimulapis es un abundante artrópodo del Silúrico temprano (438-433 MdA) con un caparazón que protegía principalmente la cabeza. Posiblemente fue un carroñero o un depredador oportunista. Pudo ser uno de los primeros artrópodos con mandíbulas.📷Mikaela A. Pulsipher et al., 2022 #silurico #silurian
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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.
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Nostolepis sp. in Pridoli sea with some scolecodonts, crinoids and ostracods.
Drawn while doing my Master's research. I find all of these in samples I have.
#paleoart #art #photoshop #scolecodont #ostracod #acanthod #crinoids #sea #pridoli #silurian
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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 -
Big worm tooth 😳
Silurian, Pridoli
Europe, Lithuania, Milaičiai
From around 1 kilometer deep
Scolecodont
Scale - 1 gap is 1 mm
#paleo #paleontogy #geo #geology #micro #microscopy #fossil #fossils #microfossil #microfossils #worm #tooth #teeth #scolecodonts #silurian #Pridoli -
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 -
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 -
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 -
#FossilAdventCalendar Day 2
#FossilFridayHeading 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.
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Some 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.
