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#paleogene

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Lukas VFN 🇪🇺

First evidence of life colonizing deep into the bedrock of Greenland phys.org/news/2024-09-evidence

Late #Cretaceous and Early #Paleogene Fluid Circulation and Microbial Activity in Deep Fracture Networks of the #Precambrian Basement of Western Greenland agupubs.onlinelibrary.wiley.co

"These ages overlap with tectonic events related to the opening of the Atlantic Ocean... deep fracture networks in western #Greenland opened and were colonized by #microbes, such as sulfate reducers, during these events."

photo of cylindrical rock cores with markings ion them
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Vickysaurus

My art in 2023 (9/12)

September: Darwinius and Geiseltaliellus’s stare-off. The Paleogene was the last remaining Phanerozoic period I hadn’t done any art of, so I drew this little scene in the Messel Pit formation depicting a Darwininius and a lizard who do not enjoy sharing a tree.

A watercolour painting showing a tropical lakeside scene in evening light. The branches of an Elaeodendron tree form the foreground, and they are darker than the rest of the painting. Sitting on one of the branches is Darwinius, a primate with long limbs and tail and a lemur-like snout. Its shaggy fur is brown and it is sitting in a fairly relaxed position, tail and one leg dangling, arms resting on the branch and the leg. It throws a side-eyeing look over its shoulder at a Geiseltaliellus sitting on a different branch. This is a large green lizard with an extremely long tail, and it glares back just as much. Several insects can be spotted amidst the tree's leaves: a dragonfly, and a bunch of large ants. Most of these are dead, having bitten into a leaf in a 'death grip', and now have a parasitic fungus growing out of them. The background shows a lake at sunset, bats flying low over the surface. The shores are densely forested, but a more open, grassy patch at the right features several animals. Chief among them are two Gastornis, large herbivorous birds. They have sturdy yellow beaks, long necks, thick bodies, brown-and-white feathers, and fluffy upturned tails. They are sitting close to each other and are possibly a couple. Another animal on this grassy beach is Eurohippus, a small ancestor of the horse. It is no more than a third as big as the sitting Gastornises, but ignores them and drinks from the water. Its fur is grey and it has a big bushy horse tail.
#MyArt#Paleogene#Eocene
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Vickysaurus

On a lovely evening 47 million years ago, #Darwinius and #Geiseltaliellus are forced to share their favourite lakeside tree. They don't enjoy each other's company,but are unlikely to do anything about it. Meanwhile,a pair of #Gastornis enjoys the evening Sun while a #Eurohippus takes a drink,safe in the knowledge that these giant birds are herbivores. #Archaeonycteris hunt insects above the lake,while various crocodylians hang out and get ready for the night.

A watercolour showing a lakeside scene in the evening.The branches of a tree form the foreground,and are darker than the background.Sitting on one of the branches is Darwinius,a primate with long limbs and tail and a lemur-like snout.Its shaggy fur is brown and it sits in a relaxed position,tail and one leg dangling,arms resting on the branch and leg.It throws a look over its shoulder at a Geiseltaliellus sitting on another branch.This is a large green lizard with an extremely long tail,it glares back.Insects can be spotted amid the tree's leaves: a dragonfly and a bunch of large ants.Most of them are dead biting into a leaf in a 'death grip',and have a parasitic fungus growing out of them. The background shows bats flying low over the surface of the lake.The shores are densely forested,but on a grasst beach are two Gastornis,large birds.They have sturdy yellow beaks, long necks, thick bodies, brown-and-white feathers,and fluffy upturned tails.They are sitting close to each other.Another animal near them is Eurohippus,a small ancestor of the horse.It is less than a third as big as the sitting Gastornis,and drinks water.Its fur is grey and it has a big bushy horse tail.Farther away,a separate muddy beach has a bunch of crocodiles lying about,partially on top of one another.The farthest background shows the forested lakeshore,including a gap where a river reaches the lake.Above it,the sky is aglow in evening colours,with nebulous clouds turned pink and purple in the sunset.
#Eocene#MyArt#paleoart
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Lukas VFN 🇪🇺

Paleocene Fossil Illuminates Early Evolutionary History of Tropicbirds
sci.news/paleontology/clymenop

Partial skeleton from the #Paleocene of New Zealand illuminates the early evolutionary history of the #Phaethontiformes (#tropicbirds) tandfonline.com/doi/full/10.10

"These #pelagic #birds are relics of a once much more widespread and diverse group of birds, whose #fossil record goes back into the earliest #Paleogene. The newly-identified species lived in what is now #NewZealand 62 million years ago."

Photo of the red-billed tropicbird (Phaethon aethereus) flying above water
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