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Posts by Phanerozoic Eon

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Detail of the Triceratops reconstruction I made for the North Carolina Museum of Natural Sciences' award-winning research project, Cretaceous Creatures

Coloration is meant to match a mural/reconstruction by Julius Csotonyi
#paleoart #sciart

3 weeks ago 79 16 0 0
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Oxygen supply through the tracheolar–muscle system does not constrain insect gigantism - Nature New evidence suggests that diffusive oxygen transport through the tracheolar–muscle system is not the limiting factor on insect body size.

Seems like a pretty important result; title says it all.
www.nature.com/articles/s41...

3 weeks ago 124 53 4 16
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How a strange crocodile relative learned to walk on two legs An odd crocodile relative, Sonselasuchus cedrus, walked on four legs as a baby and two as an adult - a huge transformation over its lifetime.

How a strange crocodile relative learned to walk on two legs: www.earth.com/news/how-a-s...

3 weeks ago 19 9 0 0
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Here are ten seconds of Flamingoes feeding underwater.

3 weeks ago 4112 719 88 48
It's me wearing a pigeon shirt standing next to a large OU

It's me wearing a pigeon shirt standing next to a large OU

I am thrilled to share that I have accepted an offer for Assistant Curator of Fishes at the Sam Noble Museum/Assistant Professor at University of Oklahoma!

I will be starting this August and looking forward to more fishy research. 🐟🐠🐡

Thanks to all who've helped me get this far!

3 weeks ago 183 15 25 2
The painting depicts four primitive horses (Propalaeotherium) – two at the top and two at the bottom – with the one on the top left looking at the viewer, whilst the one on the right is feeding on the ground; of the two at the bottom, one is running to the left and the other to the right; all the animals have dark legs and muzzles, their manes are short and black, their bellies are light in colour, and the rest of their bodies are a beautiful, rich brown

The painting depicts four primitive horses (Propalaeotherium) – two at the top and two at the bottom – with the one on the top left looking at the viewer, whilst the one on the right is feeding on the ground; of the two at the bottom, one is running to the left and the other to the right; all the animals have dark legs and muzzles, their manes are short and black, their bellies are light in colour, and the rest of their bodies are a beautiful, rich brown

#Propalaeotherium #palaeontology #artandscience

3 weeks ago 56 16 2 0
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Oviraptors May Have Needed the Sun to Hatch Their Eggs | Sci.News New experiments indicate bird-like oviraptorid dinosaurs could not fully warm their eggs with body heat alone, instead combining brooding with solar warmth in semi-open nests.

www.sci.news/paleontology...

1 month ago 80 14 1 1
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I'm really looking forward to our Friends of UMMP meeting this Friday. I haven't been to a meeting since October for various reasons.

Here's a before and after of a nice Eldredgeops from the Devonian Silica Shale of Ohio. I found and prepped this specimen.

#TrilobiteTuesday

1 month ago 497 46 16 3
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#TrilobiteTuesday

Here is the cephalon (head) portion of an Olenellus trilobite from the Lower Cambrian Rome shale collected in Shelby County, Alabama. Early cambrian rocks in the Southeast are poorly exposed but and hard to find fossils in. These are some of the earliest trilobites in N. America.

1 month ago 947 87 18 3
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This may be the oldest ‘butthole’ imprint on Earth Fossils show exceptionally rare evidence of a cloacal vent—the slit that most vertebrates use to excrete, have sex and lay egg—which could shed light on the evolution of the orifice

Paleontologists just found Earth’s oldest “butthole” impression. The 299-million-year-old imprint was planted by a lizardlike reptile cooling off in some mud.

Sometimes life as a science journalist takes you strange places.

#Paleontology #TraceFossils

🧪🧪

New at @sciam.bsky.social

1 month ago 48 17 2 8
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Cover of the journal Nature, featuring the head of a large fish with its mouth open.  A smaller fish is swimming into its mouth. The cover reads "Caught in Time: Early fossils shed light on the origins of bony fish."

Cover of the journal Nature, featuring the head of a large fish with its mouth open. A smaller fish is swimming into its mouth. The cover reads "Caught in Time: Early fossils shed light on the origins of bony fish."

Osteichthyans--the bony fishes--are by far the most diverse group of living jawed vertebrates. Two papers out today in @nature.com feature remarkable new Chinese fossils that paint a picture of substantial morphological diversity among stem osteichthyans.

1 month ago 91 33 1 1
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New paper! How weird could Permian animals get? Turns out, pretty weird. Meet the stem tetrapod Tanyka amnicola from the Pedra de Fogo Formation of northeast Brazil

royalsocietypublishing.org/rspb/article...

1 month ago 898 161 40 19
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Globe-trotting ancient 'sea-salamander' fossils rediscovered from Australia's dawn of the Age of Dinosaurs Around 250 million years ago, what is today scorching desert in remote northwestern Australia was the shore of a shallow bay bordering a vast prehistoric ocean. Fossils recovered from this region over...

Globe-trotting ancient 'sea-salamander' fossils rediscovered from Australia's dawn of the Age of Dinosaurs

1 month ago 90 24 1 0
A POV shot of a Humboldt Squid (Dosidicus gigas) grabbing a divers arm and camera. Two arms are raised up and curling back, two are grabbing the camera or are about to, and the other arms are out of the shot. The squid is quite large, and its mantle is pointing away from the camera. Some fish are in the background. The whole image has a green tint.

A POV shot of a Humboldt Squid (Dosidicus gigas) grabbing a divers arm and camera. Two arms are raised up and curling back, two are grabbing the camera or are about to, and the other arms are out of the shot. The squid is quite large, and its mantle is pointing away from the camera. Some fish are in the background. The whole image has a green tint.

Cephalopods are nothing to be afraid of. They don't see humans as prey, so they probably wouldn't hurt you

But Humboldt squids (Dosidicus gigas) are big squids with a reputation for being aggressive, so I would be pretty scared if one grabbed by like this

🦑📷ferleys (inaturalist.ca/observations...)

2 months ago 62 16 1 1
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This fossilized vomit is older than the dinosaurs Vomit is gross—but 290-million-year-old vomit is a scientific marvel

Please come on this journey with me, the journey of the 290-million-year-old barf, I promise we'll have fun: 🧪 www.scientificamerican.com/article/this...

2 months ago 86 23 2 4
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Rare fossil at Montana State’s Museum of the Rockies records Tyrannosaurus attack An edmontosaurus skull in the museum's collection was the subject of a new scientific paper published Feb. 17.

www.montana.edu/news/25112/r...

2 months ago 36 11 0 1
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Biocrusts: Earth’s history, but from the ground perspective
digital paintings, 2014
www.palaeonavix.org/index.php/bi...
www.palaeonavix.org/index.php/gr...

2 months ago 25 10 0 0
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Space dust reveals rapid evolution after dino-killing asteroid New data detail how tiny forms of life rebounded much more quickly than previously believed

Scientists just found that a curious group of plankton began to flourish rapidly after the dino-killing asteroid—a key sign life was on the mend.

They made their discovery by measuring the slow accumulation of space dust after the impact.

#Paleontology #PlankticForams

New for @science.org 🧪🏺

2 months ago 45 21 0 0
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Salp chain. I fell asleep but saw they collected a Hyaloteuthis before the end of dive! Way to go SOI on 900 dives with ROV SuBastian! This makes about 600 that I've tuned in for. Keep them coming. @schmidtocean.bsky.social dive 900 #livingbioreactors #MarineLife

2 months ago 164 23 3 1
A rock with some mixed fossils, that appear to be plants of some form. The poster is unaware.

A rock with some mixed fossils, that appear to be plants of some form. The poster is unaware.

Found during a walk in the woods.

2 months ago 48 2 4 1
A watercolor painting depicting forest floor full of layered leaves and mushrooms. A butterfly, Eastern Comma emerging from them along with early spring ephemerals. Enjoy! 😊

A watercolor painting depicting forest floor full of layered leaves and mushrooms. A butterfly, Eastern Comma emerging from them along with early spring ephemerals. Enjoy! 😊

Forest floor full of layered leaves.. .
Eastern Comma emerging . .
Along with early spring ephemerals. .
Life thrives together. .
In harmony. .
In interdependence. .
Watercolor in progress ©️Heeyoung Kim 2026

#botanicalart #naturalhistoryart #natureart

2 months ago 83 15 3 1
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work in progress 🐦✍️

2 months ago 1545 115 54 2
Skeleton of the slender reptile Eudibamus in a reddish siltstone

Skeleton of the slender reptile Eudibamus in a reddish siltstone

#FossilFriday The Permian long-legged stem-reptile Eudibamus cursoris at the Carnegie Museum of Natural History

2 months ago 63 14 1 0
Photo of a dozen or so tiny, bronze coloured slime mold sporangia that look kinda like tiny cups on short stalks…the cups have covers. The slime mold is on a green, leafy lichen.

Photo of a dozen or so tiny, bronze coloured slime mold sporangia that look kinda like tiny cups on short stalks…the cups have covers. The slime mold is on a green, leafy lichen.

Slime mold, Craterium minutum on lichen, Parmelia sulcata. NWT, Canada.
#lichen #fungi #fungifriends
The slime mold sporangia are only about 2 to 3mm high.

2 months ago 1281 141 21 4
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Australian tropical rainforest trees switch in world first from carbon sink to emissions source Researchers say carbon emissions change in Queensland tropical rainforests may have global climate implications

This research paper is the first time that a tipping point of a switch from a carbon sink to a carbon emission source in tropical rainforests has been identified clearly – not just for one year but for the last 20 years. Cause is a change in the local climate. www.theguardian.com/environment/...

2 months ago 3046 1191 107 90
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trace fossil in a smooth limestone rock

trace fossil in a smooth limestone rock

the fossil record shows that creatures have been writhing for eons

2 months ago 1399 89 49 10
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A random assortment of pterosaur skulls 🐊

2 months ago 300 84 10 2
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Some of these fossils from the Huayuan assemblage ("the Chinese Burgess Shale") are amazingly detailed. Over half a billion years old. This is Allonnia, a Cambrian sponge-like animal

2 months ago 158 21 2 1
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“Oreodonts” ... On the left the somewhat hippopotamus-like Promerycochoerus, on the right the tapir-like Brachycrus.

2 months ago 118 30 7 3
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Absolutely thrilled to have seen the new Chicago Archaeopteryx exhibit. This specimen never ceases to amaze me. Featuring my fanart of said dead bird.

#chicagoarchaeopteryx #fieldmuseum

2 months ago 41 15 2 0