#paleocene — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #paleocene, aggregated by home.social.
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#Paleocene Epoch, first major worldwide division of rocks and time of the Paleogene Period, spanning the interval between 66 million and 56 million years ago. The Paleocene Epoch was preceded by the Cretaceous Period and was followed by the Eocene Epoch.— with Field Museum at Field Museum. #Protungulatum ('first ungulate') is an extinct genus of eutherian mammals within extinct family Protungulatidae,[2][6] and is possibly one of the earliest known placental mammals in the fossil
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#Gastornis is an extinct genus of large, flightless birds that lived during the mid-#Paleocene to mid-Eocene epochs of the Paleogene period. Most fossils have been found in Europe, and some species typically referred to the genus
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El Purgatorius unio fue un primatomorfo del Paleoceno (66-63 MdA) y un posible ancestro nuestro. Era un pequeño mamífero insectívoro diurno que vivía en madrigueras unos cientos de miles de años después del meteorito que acabó con casi todos los dinosaurios.📷Patrick Lynch #paleoceno #paleocene
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El Purgatorius unio fue un primatomorfo del Paleoceno (66-63 MdA) y un posible ancestro nuestro. Era un pequeño mamífero insectívoro diurno que vivía en madrigueras unos cientos de miles de años después del meteorito que acabó con casi todos los dinosaurios.📷Patrick Lynch #paleoceno #paleocene
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From 2021: An Ancient Era of #GlobalWarming Could Hint at Our Scorching Future [Bonus -- We're adding #PFAS, #microplastics and #radiation to the mix! Oh boy...!]
Looking back at the strange and sweaty days of the #PETM.
by Riley Black, August 16, 2021
"THERE WAS A TIME when alligators slid through weed-choked swamps near the North Pole. Some 55 million years ago—just around 10 million years after the mass extinction that killed T. rex and most of its kin—the average global temperature sat more than 20°F higher than it does today. Subtropical forests spread to northern latitudes, and mammals thrived in lush new habitats.
"The toasty weather had nothing to do with the event that killed the dinos. The driver for the climatic shift came not from above, but from below—in Earth’s oceans. Paleontologists and geologists suspect that some amount of natural warming that took place during the Paleocene, or the period following the die-off, caused great deposits of crystallized methane to transform into gas. Seabeds belched the excess out into the water and the air, which was bad news for the planet: Methane is a greenhouse gas far more potent than carbon dioxide. The globe rapidly warmed in response—jumping about 10°F in less than 20,000 years—and held steady for some 70,000 more before starting a long and slow recovery.
"Paleontologists call this hot spot the #PaleoceneEoceneThermalMaximum (PETM). It’s a time when subtropical forests spread over the continents and new animals got to stake their claims on the planet, all thanks to an atmosphere and oceans in turmoil. This part of the fossil record is a remnant of the past, but it may also be a preview of our future."
#HungryInsects #DeadZones #LossOfOceanOxygen #ToxicAlgae #RapidEvolution #StrangeNewRains #Extinction #NewLifeForms
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From 2021: An Ancient Era of #GlobalWarming Could Hint at Our Scorching Future [Bonus -- We're adding #PFAS, #microplastics and #radiation to the mix! Oh boy...!]
Looking back at the strange and sweaty days of the #PETM.
by Riley Black, August 16, 2021
"THERE WAS A TIME when alligators slid through weed-choked swamps near the North Pole. Some 55 million years ago—just around 10 million years after the mass extinction that killed T. rex and most of its kin—the average global temperature sat more than 20°F higher than it does today. Subtropical forests spread to northern latitudes, and mammals thrived in lush new habitats.
"The toasty weather had nothing to do with the event that killed the dinos. The driver for the climatic shift came not from above, but from below—in Earth’s oceans. Paleontologists and geologists suspect that some amount of natural warming that took place during the Paleocene, or the period following the die-off, caused great deposits of crystallized methane to transform into gas. Seabeds belched the excess out into the water and the air, which was bad news for the planet: Methane is a greenhouse gas far more potent than carbon dioxide. The globe rapidly warmed in response—jumping about 10°F in less than 20,000 years—and held steady for some 70,000 more before starting a long and slow recovery.
"Paleontologists call this hot spot the #PaleoceneEoceneThermalMaximum (PETM). It’s a time when subtropical forests spread over the continents and new animals got to stake their claims on the planet, all thanks to an atmosphere and oceans in turmoil. This part of the fossil record is a remnant of the past, but it may also be a preview of our future."
#HungryInsects #DeadZones #LossOfOceanOxygen #ToxicAlgae #RapidEvolution #StrangeNewRains #Extinction #NewLifeForms
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From 2021: An Ancient Era of #GlobalWarming Could Hint at Our Scorching Future [Bonus -- We're adding #PFAS, #microplastics and #radiation to the mix! Oh boy...!]
Looking back at the strange and sweaty days of the #PETM.
by Riley Black, August 16, 2021
"THERE WAS A TIME when alligators slid through weed-choked swamps near the North Pole. Some 55 million years ago—just around 10 million years after the mass extinction that killed T. rex and most of its kin—the average global temperature sat more than 20°F higher than it does today. Subtropical forests spread to northern latitudes, and mammals thrived in lush new habitats.
"The toasty weather had nothing to do with the event that killed the dinos. The driver for the climatic shift came not from above, but from below—in Earth’s oceans. Paleontologists and geologists suspect that some amount of natural warming that took place during the Paleocene, or the period following the die-off, caused great deposits of crystallized methane to transform into gas. Seabeds belched the excess out into the water and the air, which was bad news for the planet: Methane is a greenhouse gas far more potent than carbon dioxide. The globe rapidly warmed in response—jumping about 10°F in less than 20,000 years—and held steady for some 70,000 more before starting a long and slow recovery.
"Paleontologists call this hot spot the #PaleoceneEoceneThermalMaximum (PETM). It’s a time when subtropical forests spread over the continents and new animals got to stake their claims on the planet, all thanks to an atmosphere and oceans in turmoil. This part of the fossil record is a remnant of the past, but it may also be a preview of our future."
#HungryInsects #DeadZones #LossOfOceanOxygen #ToxicAlgae #RapidEvolution #StrangeNewRains #Extinction #NewLifeForms
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From 2021: An Ancient Era of #GlobalWarming Could Hint at Our Scorching Future [Bonus -- We're adding #PFAS, #microplastics and #radiation to the mix! Oh boy...!]
Looking back at the strange and sweaty days of the #PETM.
by Riley Black, August 16, 2021
"THERE WAS A TIME when alligators slid through weed-choked swamps near the North Pole. Some 55 million years ago—just around 10 million years after the mass extinction that killed T. rex and most of its kin—the average global temperature sat more than 20°F higher than it does today. Subtropical forests spread to northern latitudes, and mammals thrived in lush new habitats.
"The toasty weather had nothing to do with the event that killed the dinos. The driver for the climatic shift came not from above, but from below—in Earth’s oceans. Paleontologists and geologists suspect that some amount of natural warming that took place during the Paleocene, or the period following the die-off, caused great deposits of crystallized methane to transform into gas. Seabeds belched the excess out into the water and the air, which was bad news for the planet: Methane is a greenhouse gas far more potent than carbon dioxide. The globe rapidly warmed in response—jumping about 10°F in less than 20,000 years—and held steady for some 70,000 more before starting a long and slow recovery.
"Paleontologists call this hot spot the #PaleoceneEoceneThermalMaximum (PETM). It’s a time when subtropical forests spread over the continents and new animals got to stake their claims on the planet, all thanks to an atmosphere and oceans in turmoil. This part of the fossil record is a remnant of the past, but it may also be a preview of our future."
#HungryInsects #DeadZones #LossOfOceanOxygen #ToxicAlgae #RapidEvolution #StrangeNewRains #Extinction #NewLifeForms
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From 2021: An Ancient Era of #GlobalWarming Could Hint at Our Scorching Future [Bonus -- We're adding #PFAS, #microplastics and #radiation to the mix! Oh boy...!]
Looking back at the strange and sweaty days of the #PETM.
by Riley Black, August 16, 2021
"THERE WAS A TIME when alligators slid through weed-choked swamps near the North Pole. Some 55 million years ago—just around 10 million years after the mass extinction that killed T. rex and most of its kin—the average global temperature sat more than 20°F higher than it does today. Subtropical forests spread to northern latitudes, and mammals thrived in lush new habitats.
"The toasty weather had nothing to do with the event that killed the dinos. The driver for the climatic shift came not from above, but from below—in Earth’s oceans. Paleontologists and geologists suspect that some amount of natural warming that took place during the Paleocene, or the period following the die-off, caused great deposits of crystallized methane to transform into gas. Seabeds belched the excess out into the water and the air, which was bad news for the planet: Methane is a greenhouse gas far more potent than carbon dioxide. The globe rapidly warmed in response—jumping about 10°F in less than 20,000 years—and held steady for some 70,000 more before starting a long and slow recovery.
"Paleontologists call this hot spot the #PaleoceneEoceneThermalMaximum (PETM). It’s a time when subtropical forests spread over the continents and new animals got to stake their claims on the planet, all thanks to an atmosphere and oceans in turmoil. This part of the fossil record is a remnant of the past, but it may also be a preview of our future."
#HungryInsects #DeadZones #LossOfOceanOxygen #ToxicAlgae #RapidEvolution #StrangeNewRains #Extinction #NewLifeForms
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There were #penguins in the equator in the Paleogene! The notion the penguins initiated in the #Paleocene is itself a big mind-bending for me (given how #warm things were), but them hanging out in the equatorial #Eocene is just...
https://www.pnas.org/doi/abs/10.1073/pnas.0611099104 -
There were #penguins in the equator in the Paleogene! The notion the penguins initiated in the #Paleocene is itself a big mind-bending for me (given how #warm things were), but them hanging out in the equatorial #Eocene is just...
https://www.pnas.org/doi/abs/10.1073/pnas.0611099104 -
El Militocodon lydae fue un mamífero del Paleoceno (65,5 MdA) con un aspecto similar al coatí (Nasua) pero el tamaño de una chinchilla y relacionado con los ungulados. 📷 Museo de Naturaleza y Ciencia de Denver #Paleoceno #Paleocene
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El Militocodon lydae fue un mamífero del Paleoceno (65,5 MdA) con un aspecto similar al coatí (Nasua) pero el tamaño de una chinchilla y relacionado con los ungulados. 📷 Museo de Naturaleza y Ciencia de Denver #Paleoceno #Paleocene
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Ancestor of cows, deer: 65-mn-year-old mammal #fossil discovered
https://interestingengineering.com/culture/fossil-of-65-million-year-old-mammal-ancestor-of-all-cows-deer-discoveredSkull of a new periptychid #mammal from the lower #Paleocene Denver Formation of #Colorado (Corral Bluffs, El Paso County) https://link.springer.com/article/10.1007/s10914-024-09716-5
"#Militocodon lydae is about the size of a chinchilla, approximately 23 to 36 cm long. This #discovery provides crucial data on the rapid diversification of #mammals after the #extinction of the #dinosaurs."
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Ancestor of cows, deer: 65-mn-year-old mammal #fossil discovered
https://interestingengineering.com/culture/fossil-of-65-million-year-old-mammal-ancestor-of-all-cows-deer-discoveredSkull of a new periptychid #mammal from the lower #Paleocene Denver Formation of #Colorado (Corral Bluffs, El Paso County) https://link.springer.com/article/10.1007/s10914-024-09716-5
"#Militocodon lydae is about the size of a chinchilla, approximately 23 to 36 cm long. This #discovery provides crucial data on the rapid diversification of #mammals after the #extinction of the #dinosaurs."
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#WeekendReading: Bazeen et al. is trying to reconstruct Levantian relative sea level using benthic #foraminifera biofacies in the #Paleocene and coming up with some very strong amplitudes.
https://www.sciencedirect.com/science/article/pii/S037783982400032X?via%3Dihub -
#WeekendReading: Bazeen et al. is trying to reconstruct Levantian relative sea level using benthic #foraminifera biofacies in the #Paleocene and coming up with some very strong amplitudes.
https://www.sciencedirect.com/science/article/pii/S037783982400032X?via%3Dihub -
Hace 58 millones de años, durante el Paleoceno tardío, el Hemingwaya sarissa nadaba lentamente en la superficie del mar de Tetis, aumentando su velocidad en periodos cortos para cazar. Sobrevivieron durante 30 millones de años. A pesar de su parecido, era más pequeño que los peces picudos actuales, como el pez espada y vela, alcanzando apenas unos 40 centímetros.📷 Fierstine 2006 #fish #peces #paleoceno #paleocene
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Hace 58 millones de años, durante el Paleoceno tardío, el Hemingwaya sarissa nadaba lentamente en la superficie del mar de Tetis, aumentando su velocidad en periodos cortos para cazar. Sobrevivieron durante 30 millones de años. A pesar de su parecido, era más pequeño que los peces picudos actuales, como el pez espada y vela, alcanzando apenas unos 40 centímetros.📷 Fierstine 2006 #fish #peces #paleoceno #paleocene
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I wish I knew what kinds of #weather changes (if any?) happened when #flying #insects became widespread in the #Carboniferous (or before?), again when flying #pterosaurs became widespread in the #Triassic, a third time when flying #birds became widespread (late #Jurassic or early #Cretaceous), and fourth time when flying #bats became widespread in the #Paleocene.
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I wish I knew what kinds of #weather changes (if any?) happened when #flying #insects became widespread in the #Carboniferous (or before?), again when flying #pterosaurs became widespread in the #Triassic, a third time when flying #birds became widespread (late #Jurassic or early #Cretaceous), and fourth time when flying #bats became widespread in the #Paleocene.
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Paleocene Fossil Illuminates Early Evolutionary History of Tropicbirds
https://www.sci.news/paleontology/clymenoptilon-novaezealandicum-12233.htmlPartial skeleton from the #Paleocene of New Zealand illuminates the early evolutionary history of the #Phaethontiformes (#tropicbirds) https://www.tandfonline.com/doi/full/10.1080/03115518.2023.2246528
"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."
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Paleocene Fossil Illuminates Early Evolutionary History of Tropicbirds
https://www.sci.news/paleontology/clymenoptilon-novaezealandicum-12233.htmlPartial skeleton from the #Paleocene of New Zealand illuminates the early evolutionary history of the #Phaethontiformes (#tropicbirds) https://www.tandfonline.com/doi/full/10.1080/03115518.2023.2246528
"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."
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North Atlantic #volcanic activity was a major driver of #climate change 56 million years ago https://phys.org/news/2023-08-north-atlantic-volcanic-major-driver.html
Tracing North #Atlantic #volcanism and seaway connectivity across the #PaleoceneEoceneThermalMaximum (#PETM) https://cp.copernicus.org/articles/19/1623/2023/
"The #Paleocene–#Eocene Thermal Maximum (PETM) is a period of #GlobalWarming that occurred ~56 million years ago, lasting approximately 200,000 years, when the #Earth experienced global surface #temperature elevations of ~5°C."
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North Atlantic #volcanic activity was a major driver of #climate change 56 million years ago https://phys.org/news/2023-08-north-atlantic-volcanic-major-driver.html
Tracing North #Atlantic #volcanism and seaway connectivity across the #PaleoceneEoceneThermalMaximum (#PETM) https://cp.copernicus.org/articles/19/1623/2023/
"The #Paleocene–#Eocene Thermal Maximum (PETM) is a period of #GlobalWarming that occurred ~56 million years ago, lasting approximately 200,000 years, when the #Earth experienced global surface #temperature elevations of ~5°C."
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Second rock unit containing rare earth #REE #minerals found in western ND, USA | title of report: "Critical Mineral Enrichment in Lignites Beneath The Rhame Bed (#Paleocene) of the Slope Formation in the #Williston Basin of #NorthDakota", by Moxness, L.D., Murphy, E.C., and Kruger, N.W., 2023, can be found at NDGS website
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Habrosaurus: Beast of the Week
http://prehistoricbeastoftheweek.blogspot.com/2023/04/habrosaurus-beast-of-week.html#Habrosaurus was a #salamander that lived in what is now #Alberta, #Wyoming and #Montana, during the late #Cretaceous period into the early #Paleocene (surviving the #asteroid that wiped out most of the #dinosaurs), from 68 to 58 million years ago. From snout to tail Habrosaurus is estimated to have been over 1.6 meters long, making it one of the largest #salamanders of all time.
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Often, the smallest #fossil tells the best story. The #Tanzanian 🇹🇿 Drilling Project studies #fossils of #plankton and other tiny #marine organisms to better understand #climate and its impacts during periods of time much warmer than today. For example, this core was bored into #Paleocene rocks, revealing details of an #offshore #environment that existed just after one of our planet's largest mass #extinctions.
Image from Berrocoso et al. 2012.
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#FossilFridays, the lower jaws of the early #Paleocene #mesonychian #mammal #Dissacus navajovius as found eroding out of the #Nacimiento Formation, San Juan Basin, New Mexico #sanjuanbasin #newmexico
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#FossilFridays, the lower jaws of the early #Paleocene #mesonychian #mammal #Dissacus navajovius as found eroding out of the #Nacimiento Formation, San Juan Basin, New Mexico #sanjuanbasin #newmexico #paleontology #palaeontology
