New #ISEPpapers #preprint! Environmental #phylogenetics supports a steady diversification of crown #eukaryotes starting from the mid Proterozoic https://www.biorxiv.org/content/10.64898/2025.12.12.693929v1.full
#Protists #Microbes #Evolution #Phylogeny #Proterozoic #Eukaryogenesis
@KateShaw has made a new episode, featuring goblet-shaped Diskagma of the Paleoproterozoic, and Horodyskia of the Mesoproterozoic and Neoproterozoic.
https://strangeanimalspodcast.blubrry.net/2025/08/04/episode-444-diskagma-and-horodyskia/
#fossils
#preCambrian
#proterozoic
#Paleoproterozoic
#Mesoproterozoic
#Neoproterozoic
#Ediacaran
Boring Billion (Geological periods ๐)
The Boring Billion, otherwise known as the Mid Proterozoic and Earth's Middle Ages, is an informal geological time period between 1.8 and 0.8 billion years ago during the middle Proterozoic eon spanning from the Statherian to the Tonian periods, characterized by more or less tectonic stability, climatic stasis and slo...
https://en.wikipedia.org/wiki/Boring_Billion
#BoringBillion #Proterozoic #Astrobiology #1995InScience #PlateTectonics #GeologicalPeriods
Volyn biota (Ecosystems ๐๏ธ)
The Volyn biota are fossilized microorganisms found in rock samples from miarolitic cavities of igneous rocks collected in Zhytomyr Oblast, Ukraine. It is within the historical region of Volyn, hence the name of the find. Exceptionally well-preserved, they were dated to 1.5 Ga, within the "Boring Billion" period of the Proterozoic geological eon.
https://en.wikipedia.org/wiki/Volyn_biota
#VolynBiota #Volhynia #Ecosystems #Lithophiles #Proterozoic #ZhytomyrOblast
A very productive hour spent learning about Earth's primary productivity (organic molecules produced) over time via a talk by Peter Crockford, Carleton University.
Fun fact: every carbon atom has likely be cycled through an organism ~100 times over the last 3+ billion years!
Crockford et al., The geologic history of primary productivity, Current Biology (2023), https://doi.org/10.1016/ j.cub.2023.09.040
#CarletonU #McGillUniversity #Photosynthesis #EarthSystemScience #Proterozoic #Geology
ISEP
๐ง๐ Greg Cocks
Dr. Or M. Bialik
John Faithfull ๐๐ช๐บ๐ด๓ ง๓ ข๓ ณ๓ ฃ๓ ด๓ ฟ๐งกโ๐ปโ๐ฟ
llewelly
pglpm
Planetary Ecologist
Bill Minarik