Tim Cleland
@paleoproteomicist.bsky.social
📤 161
📥 98
📝 18
Paleoproteomics • Mass Spectrometry
#palaeoproteomics
add a skeleton here at some point
10 days ago
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I have a new paper with
@iondoctor.bsky.social
and other MCI, Carnegie Science, and Calvert Marine Museum colleagues where we analyzed 8 and 10 million year old Ecphora shell membranes. We found chitin and various gastropod specific peptides.
www.app.pan.pl/article/item...
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Protein and chitin preservation in polymeric sheets in Miocene <em>Ecphora gardnerae</em> shells from Maryland, USA - Acta Palaeontologica Polonica
https://www.app.pan.pl/article/item/app012012024.html
10 days ago
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reposted by
Tim Cleland
asher newsome
about 1 month ago
My second paper with former fellow Tjasa is out now. The focus is about swabbing large plastic art objects to study their surfaces (so that anyone can do it for GCMS) but we also do NPDPI for real-time high-res MS
www.nature.com/articles/s40...
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Non-destructive mass spectrometry of historical poly(vinyl chloride) object surfaces with swab analysis - npj Heritage Science
npj Heritage Science - Non-destructive mass spectrometry of historical poly(vinyl chloride) object surfaces with swab analysis
https://www.nature.com/articles/s40494-025-01969-4
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The impacts of microCT on preserved proteins is something we probably need to consider in the
#palaeoproteomics
community as well.
theconversation.com/scientists-c...
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Scientists could be accidentally damaging fossils with a method we thought was safe
A common scanning method used to create ‘virtual copies’ of precious fossils could be erasing some of the crucial information held within.
https://theconversation.com/scientists-could-be-accidentally-damaging-fossils-with-a-method-we-thought-was-safe-258827?fbclid=IwQ0xDSwLly_dleHRuA2FlbQIxMQABHsZYb3o5Vmb7uZmbvY3tUwY2guqK4Ugnvvdf4lI0tp2uY6rYkD7Uoi5nFXlG_aem_UvZ-q6gNQBvmAMiG3aAK3A
2 months ago
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reposted by
Tim Cleland
We published a new paper on enamel paleoproteomics from teeth up to 18 million years old from the Turkana Basin in Kenya.
www.nature.com/articles/s41...
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Eighteen million years of diverse enamel proteomes from the East African Rift - Nature
The isolation of dental proteins from fossils deposited 1.5 million to 18 million years ago in the Turkana Basin in Kenya, a tropical region, demonstrate the promise of dental enamel for palaeoproteom...
https://www.nature.com/articles/s41586-025-09040-9
3 months ago
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reposted by
Tim Cleland
Kevin Uno
3 months ago
Check out our new paper, led by former postdoc and current colleague Daniel Green on 18 Ma proteins in fossil teeth! Tim Cleland, a proteomics wizard, did the measurements. What's the take home? We hope to use protein fingerprints to study mammal and hominin phylogenetics!
bit.ly/OldProteome
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Eighteen million years of diverse enamel proteomes from the East African Rift - Nature
The isolation of dental proteins from fossils deposited 1.5 million to 18 million years ago in the Turkana Basin in Kenya, a tropical region, demonstrate the promise of dental enamel for palaeoproteom...
https://bit.ly/OldProteome
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reposted by
Tim Cleland
Frido Welker
3 months ago
Two great new studies out in
@nature.com
today, pushing back the recovery of dental enamel proteins to 21+ million years in the Arctic (
www.nature.com/articles/s41...
) and 18+ million years in East Africa (
www.nature.com/articles/s41...
).
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Eighteen million years of diverse enamel proteomes from the East African Rift - Nature
The isolation of dental proteins from fossils deposited 1.5 million to 18 million years ago in the Turkana Basin in Kenya, a tropical region, demonstrate the promise of dental enamel for palaeoproteom...
https://www.nature.com/articles/s41586-025-09040-9
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reposted by
Tim Cleland
Riley Black 🦕 🏳️⚧️
3 months ago
Are we ever going to say “Bingo! Dino DNA”? No. But there are other microbio clues about ancient creatures in the rock record, including proteins from 18 million years ago that may help work our relationships of extinct creatures. And it hints there are likely even older protein scraps out there.
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Eighteen million years of diverse enamel proteomes from the East African Rift - Nature
The isolation of dental proteins from fossils deposited 1.5 million to 18 million years ago in the Turkana Basin in Kenya, a tropical region, demonstrate the promise of dental enamel for palaeoproteom...
https://www.nature.com/articles/s41586-025-09040-9
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reposted by
Tim Cleland
Nature
3 months ago
Molecules from 20-million-year-old rhino-relative teeth are among the oldest ever sequenced
go.nature.com/4lFx4KN
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Ancient proteins rewrite the rhino family tree — are dinosaurs next?
Molecules from 20-million-year-old teeth are among the oldest ever sequenced.
https://go.nature.com/4lFx4KN
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reposted by
Tim Cleland
Meagan Mulcair, Ph.D.
3 months ago
The record for the oldest protein ever found has been smashed five-fold after analyzing ancient fossilized teeth 🦷
@paleoproteomicist.bsky.social
@fridowelker.bsky.social
@harvardpress.bsky.social
@smithsonianmag.bsky.social
@newscientist.com
www.newscientist.com/article/2487...
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Oldest proteins yet recovered from 18-million-year-old teeth
The oldest protein fragments ever recovered have been extracted from fossilised teeth found in Kenya's Rift Valley, revealing the remains belonged to the ancient ancestors of rhinoceroses and elephant...
https://www.newscientist.com/article/2487702-oldest-proteins-yet-recovered-from-18-million-year-old-teeth/
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This is a super exciting day for paleoproteomics. In addition to our paper on Kenyan enamel, the Cappellini group published a complementary paper on 21-24 million year old enamel from the Arctic
www.nature.com/articles/s41...
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Phylogenetically informative proteins from an Early Miocene rhinocerotid - Nature
Protein sequences from fossil tooth enamel of a rhinocerotid from Canada’s High Arctic are used to develop phylogenetic frameworks from a specimen too old to preserve ancient DNA.
https://www.nature.com/articles/s41586-025-09231-4
3 months ago
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We published a new paper on enamel paleoproteomics from teeth up to 18 million years old from the Turkana Basin in Kenya.
www.nature.com/articles/s41...
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Eighteen million years of diverse enamel proteomes from the East African Rift - Nature
The isolation of dental proteins from fossils deposited 1.5 million to 18 million years ago in the Turkana Basin in Kenya, a tropical region, demonstrate the promise of dental enamel for palaeoproteom...
https://www.nature.com/articles/s41586-025-09040-9
3 months ago
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@iondoctor.bsky.social
and I will be presenting our museum work at
#ASMS2025
4 months ago
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reposted by
Tim Cleland
Welker Group
5 months ago
New publication! 🎉 Here you can read all about dog drool, bleach, and a probable Central Asian Neanderthal child:
doi.org/10.1016/j.ja...
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reposted by
Tim Cleland
Matthew Collins
8 months ago
10th Bone Diagenesis Meeting, to be held in Athens, Greece 🇬🇷, on 24–26 September 2025 American School of Classical Studies at Athens (ASCSA)
bd-2025.com
Abstract submission is now open! more information here:
bd-2025.com/abstracts
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10th International Bone Diagenesis Meeting
It is with great pleasure that we invite you to the 10th Bone Diagenesis Meeting, to be held in Athens, Greece on 24-26 September 2025. Our meeting will take place at the premises of the American Scho...
https://bd-2025.com/
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reposted by
Tim Cleland
ISBA11 Turin
9 months ago
ALERT! ⚠️🚨 The deadline for the ISBA11 abstract submission is quickly approaching - January 20th! CLICK HERE TO SUBMIT YOUR ABSTRACT
www.isba11.com/abstract-sub...
#archaeology
#biomoleculararchaeology
#ISBA
#ISBA11
#archaeologists
@isbarchaeology.bsky.social
@archaeobiomics.bsky.social
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Abstract Submission – ISBA 2025
https://www.isba11.com/abstract-submission/
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#Palaeoprot
add a skeleton here at some point
9 months ago
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First paper of 2025 with Katja Diaz-Granados and other MCI people. We identify llama or alpaca fibers and natural dyes from Chancay textiles from Peru.
pubs.acs.org/doi/10.1021/...
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Investigation of Natural Dyes and Taxonomic Identification of Fibers Used in Chancay Textiles by Vibrational Spectroscopy and Mass Spectrometry
Textiles provide a valuable source of information regarding past cultures and their artistic practices. Understanding ancient textiles requires identifying the raw materials used, since the origin of ...
https://pubs.acs.org/doi/10.1021/acs.jproteome.4c00809
9 months ago
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reposted by
Tim Cleland
asher newsome
9 months ago
First paper of 2025 is now online, a collaboration between former pre-doctoral intern Katja and several of us Smithsonian MCI people:
pubs.acs.org/doi/10.1021/...
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Investigation of Natural Dyes and Taxonomic Identification of Fibers Used in Chancay Textiles by Vibrational Spectroscopy and Mass Spectrometry
Textiles provide a valuable source of information regarding past cultures and their artistic practices. Understanding ancient textiles requires identifying the raw materials used, since the origin of ...
https://pubs.acs.org/doi/10.1021/acs.jproteome.4c00809
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reposted by
Tim Cleland
Matthew Collins
almost 2 years ago
More than 136 people so far have joined PAASTA (Palaeoproteomics And Archaeology, Society for Techniques and Advances) an open, collaborative ECR-driven community for palaeoproteomics researchers. Contact Zandra Fagernäs, Copenhagen for an invite link to their Slack space.
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