ianinargentina.bsky.social
@ianinargentina.bsky.social
Reposted
Oooh, yisss!!! More of this!!! These are good!!!
#paleobotany #paleoart #paleontology #plants
After illustrating quite a few ferns, I've now moved on to cycads! Here are some examples of Jurassic cycad morphology. With great thanks to @lepidodendron.bsky.social for his insightful blog post about cycads for #paleoart!
#paleobotany #cycad
December 18, 2025 at 9:53 PM
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A lovely first sentence in the abstract of this perspective piece which I think Douglas Adams would have appreciated:

"Understanding the relationships between long-dead organisms is tricky."

It's all in the understatement.
#PlantResearch Enjoyed writing with @beverleycubg.bsky.social a perspective about wonderful paper by Valencia-Montoya et al. in this week's Science. Cycads use thermal radiation to affect pollinators. Is this why Cycads are not as diverse as angiosperms? share.google/Xj8iH9E4tqvN...
Infrared as a pollination signal
Relying on infrared communication over visual color could have limited cycad evolution
share.google
December 15, 2025 at 9:41 AM
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December 7, 2025 at 6:50 PM
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Demystifying fungal #systematics: A gateway to fungal literacy and societal/ecological relevance through familiar species

Anna Vaiana, et al.

nph.onlinelibrary.wiley.com/doi/10.1002/...

#PlantScience #fungi
November 28, 2025 at 5:15 PM
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Splendid isolation with migration: Diversity dynamics of South American mammals https://www.biorxiv.org/content/10.1101/2025.11.28.691169v1
November 30, 2025 at 3:32 AM
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Check our paper with @paleobotanist.bsky.social on root suckering in a Permian glossopterid from Antarctica 🌳⛏️🇦🇶 It's the 1st report of root suckering in this group & the oldest in the fossil record
doi.org/10.1002/ajb2... 🧵1/5
#paleobotany #botany
@umramap.bsky.social @cnrsecologie.bsky.social
Production of root suckers in Glossopteridales from the late Permian of Antarctica
Premise The Glossopteridales are an extinct group of seed plants that dominated mid to high latitude floras of the supercontinent Gondwana during the Permian (298–251 million years ago). Reconstruct.....
doi.org
November 20, 2025 at 12:13 PM
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Global warming drives the evolutionary rate of H1N1 and H3N2 influenza viruses https://www.biorxiv.org/content/10.1101/2025.11.20.689475v1
November 20, 2025 at 6:33 PM
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Discover 8,000 years of unbroken genetic lineage in Argentina! Study analyzes genome-wide data from 238 ancient individuals, dating back 10,000 years BP. PMID:41193808, Nature 2025, @Nature https://doi.org/10.1038/s41586-025-09731-3 #Medsky #Pharmsky #RNA #ASHG #ESHG 🧪
Eight millennia of continuity of a previously unknown lineage in Argentina | Nature
The central Southern Cone of South America was one of the last regions of the globe to become inhabited by people1, and remains under-represented in studies of ancient DNA. Here we report genome-wide data from 238 ancient individuals spanning ten millennia. The oldest, from the Pampas region and dating to 10,000 years before present (bp), had distinct genetic affinity to Middle Holocene Southern Cone individuals, showing that differentiation from the central Andes and central east Brazil had begun by this time. Individuals dating to 4,600–150 bp primarily descended from a previously unsampled deep lineage of which the earliest representative is an individual dating to around 8,500 bp. This central Argentina lineage co-existed with two other lineages during the Mid-Holocene and, within central Argentina, this ancestry persisted for thousands of years with little evidence of inter-regional migration. Central Argentina ancestry was involved in three distinct gene flows: it mixed into the
doi.org
November 20, 2025 at 9:10 AM
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1/ It is my pleasure to share the latest preprint of the team: "Symbiotic diversification relies on an ancestral gene network in plants"

doi.org/10.1101/2025...

Here, we identified and functionally validated a novel master regulator of intracellular symbioses!

A thread ...
#PlantScience
Symbiotic diversification relies on an ancestral gene network in plants
Symbioses have been fundamental to colonization of terrestrial ecosystems by plants and their evolution. Emergence of the ancient arbuscular mycorrhizal symbiosis was followed by the diversification o...
doi.org
November 4, 2025 at 8:06 AM
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Fungi enabled life on land ~ 900M and 1.4B yrs ago, much earlier than plants [via UOC] 🧪🥼🍄🌿🌎

"Fungi are much older ... highly likely that they were [present] over [1B] years ago, [as] one of the oldest major groups of #eukaryotes"

www.uoc.edu/en/news/2025...

#life #origin #earth #evolution
Fungi enabled life on land earlier than previously thought
An international research project involving the UOC concludes that fungi existed at least 900 million years ago
www.uoc.edu
October 28, 2025 at 5:11 PM
Autumn colors in Ontario Canada October 2025 #autumncolors #autumninontario
October 27, 2025 at 2:05 AM
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New study finds that some South American sauropods could easily rear up on two legs, using powerful femurs to feed higher, fend off predators, and even impress mates.

phys.org/news/2025-10...

#fossils #paleontology
October 27, 2025 at 1:21 AM
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This #FossilFriday is about Sphenophyllum, a distant Paleozoic relative of horsetails 🌿⛏️
Here's a branching stem with whorls of leaves from the latest Carboniferous (~300 million year old) of the Graissessac basin, France.
Reference: doi.org/10.1086/314193
🧵1/3 #paleobotany
June 13, 2025 at 7:03 PM
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Inspired by THE LANGUAGE OF TREES by @katieholten.bsky.social. Max Porter calls it “a masterpiece.” At the heart of the book is a bespoke font called Trees that replaces our ABC with TREES. #naturewriting
May 20, 2025 at 3:48 PM
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Terrible news from Switzerland, but good for the BBC on explicitly calling out the direct role of #climatechange in this disaster.
www.bbc.com/news/article...
Swiss glacier collapse buries most of village of Blatten
Many homes in Blatten have been flattened after a large chunk of the Birch glacier fell on to the village.
www.bbc.com
May 28, 2025 at 8:51 PM
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A strong, independent, and free press both defines and defends our values as Canadians.

Now more than ever, we need to protect our public forums and defend strong and reliable Canadian voices. #WorldPressFreedomDay
May 3, 2025 at 5:34 PM
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Oh no, the Chinese plagiarism machine might have plagiarized the American plagiarism machine

search.app/gLKPBELL2weQ...
Microsoft Probing If DeepSeek-Linked Group Improperly Obtained OpenAI Data
Microsoft Corp. and OpenAI are investigating whether data output from OpenAI’s technology was obtained in an unauthorized manner by a group linked to Chinese artificial intelligence startup DeepSeek, ...
search.app
January 29, 2025 at 12:54 PM
Not the end of the world, but close. Lapataia, Tierra del Fuego.
January 5, 2025 at 10:54 AM