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Dr. Joe Moysiuk

@cambrojoe.bsky.social

230 followers 190 following 20 posts

Curator of Palaeontology and Geology at the Manitoba Museum and Adjunct Prof. at U of Saskatchewan Geological Sciences, using Cambro-Ordovician #fossils to illuminate early animal evolution (personal account)

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Dr. Joe Moysiuk @cambrojoe.bsky.social · May 13

Introducing Mosura fentoni, a new radiodont from the #BurgessShale.
Paper here: doi.org/10.1098/rsos.2…
Thi#fossilil species has 3 eyes, spiny claws, wing-shaped swimming flaps, and a unique abdomen-like body region.

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Reposted by Dr. Joe Moysiuk

Manitoba Museum @manitobamuseum.bsky.social · 16d

Recently our palaeontology team took a collecting trip to the Cat Head site, in collaboration with Kinonjeoshtegon First Nation. This site is known globally for its preservation of Ordovician Period fossils, and new samples will support research on the conditions under which it formed. #FossilFriday

The field team, left to right: Joe Moysiuk (Manitoba Museum), Ricardo Silva (U of M), Tabitha Harper (Manitoba Museum), Colin Sproat (U Sask), David Wright (volunteer).

Tabitha Harper holding a fossil of a sea weed, Winnipegia cuneata. This species is unique to the Cat Head area.

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Dr. Joe Moysiuk @cambrojoe.bsky.social · 19d

Anything more precise in terms of location?

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Reposted by Dr. Joe Moysiuk

Julien Kimmig @jkimmig.bsky.social · 24d

I'm happy to introduce the newest Cambrian critter 'Tentalus spencensis' from the Spence Shale of Utah. Publications out today in Geological Magazine (Open Access). Thanks to Karma Nanglu and Paul Jamison for their help with the paper.

Link:
www.cambridge.org/core/journal...

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Reposted by Dr. Joe Moysiuk

Andrej Spiridonov @andrejpaleo.bsky.social · Sep 10

Glad to share our latest article on the "co-coordinated stasis of large mammal diversity with the environments". Long in reviews it is finally out--a work done during the post-doc of Simona Bekeraitė
app.pan.pl/article/item...
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🧪 ⚒️ #Paleobio #EvoBio #Geology #Macroecology

Species richness histories of three large mammal clades: Artiodactyla (A), Carnivora (B), and Perissodactyla (C).

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Reposted by Dr. Joe Moysiuk

Andrej Spiridonov @andrejpaleo.bsky.social · Sep 8

Creative use of autocorrelation in analyzing trace fossils in the Ediacaran-Cambrian explosion:
"..lack of temporal correlation in the studied Ediacaran trajectories and its presence in...Cambrian trajectories, indicating time-tuned behaviours.."
arxiv.org/pdf/2509.02940
🧪 ⚒️ #Paleobio #EvoBio

Sample movement path (thick grey line), subdivided into equidistant segments, with measures used in this study

Partial autocorrelation boxplots for the sampled Ediacaran specimens and Cambrian specimens

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Dr. Joe Moysiuk @cambrojoe.bsky.social · Aug 22

For anyone in Toronto in Oct. -
50 years of discovery: #BurgessShale research @romtoronto.bsky.social
www.rom.on.ca/whats-on/eve...
#FossilFriday

50 years of Discovery: Burgess Shale Research at ROM

For 50 years, ROM has been at the forefront of Burgess Shale research, uncovering dozens of new fossil sites and species. Celebrate this milestone with the stories of ROM’s researchers and partners. H...

www.rom.on.ca

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Reposted by Dr. Joe Moysiuk

Jack Tamisiea @jack-tamisiea.bsky.social · Aug 22

Last #FossilFriday I had the pleasure of visiting the @romtoronto.bsky.social and checking out the Dawn of Life gallery! I’ll dig into my favorite individual fossils soon, but the exhibit was a gorgeous mix of science, art and specimens and I loved that it featured specimens from across Canada! 🇨🇦

A display case practically overflowing with trilobite fossils

A cast slab of Mistaken Point from Newfoundland. The cast, which is bronze and gray, features the imprints of several fern-like early animals

A life-like restoration of the Cambrian predator Anomalocaris hangs from the gallery’s ceiling.

A display case featuring several gray Burgess Shale fossils and a lifelike model of the predator Titanokorys gainesi

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Reposted by Dr. Joe Moysiuk

Tommyplodocus @tommyplodocus.bsky.social · Dec 13

This week's #FossilFriday example is small... but luckily, there's a big model showing what it might have looked like alive! Habelia optata was an arthropod that lived in the waters 506 million years ago during the Cambrian. This fossil was found in British Columbia, Canada! 🇨🇦

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Dr. Joe Moysiuk @cambrojoe.bsky.social · Aug 20

Isotelus sp. from the #Ordovician Cat Head Member, Red River Formation.
#TrilobiteTuesday #Paleozoic #ManitobaFossils

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Reposted by Dr. Joe Moysiuk

Adiel Klompmaker @paleoadiel.bsky.social · Aug 8

Job Alert‼️ Postdoctoral Fellow opportunity in paleontology/biology at the University of Alabama Museums:
careers.ua.edu/jobs/688232b... Aim: assess biotic interactions using mollusks from both sides of the Isthmus of Panama. Please share widely! @paleosoc.bsky.social @almnh.bsky.social

Postdoctoral Fellow opportunity. The NSF-funded project “Energetic Controls on Marine Benthic Community Structure in Space and Time” aims to (1) evaluate how productivity affects the energetic and trophic structure of marine benthic communities on either side of the modern Isthmus of Panama, where there is now a strong contrast between the high productivity, upwelling-dominated regime of the eastern Pacific and the low-productivity, low-seasonality regime of the Caribbean (2) use this knowledge to evaluate the fossil record of Caribbean benthic ecosystems before, during, and after the uplift of the isthmus during which planktonic productivity decreased in the Caribbean and (3) relate ecosystem changes driven by productivity shifts to the well documented Caribbean extinction event ~2 Ma. This is a project in collaboration with Ohio State U, UC Berkeley, and STRI.
One key component of this project is to assess biotic interactions such as predation and possibly parasitism using fossil and modern molluscan assemblages from both sides of the Isthmus of Panama. I am recruiting a Postdoctoral Fellow with a background in paleontology and/or biology/ecology with strong quantitative skills, attention to detail and organization, and someone who can effectively supervise students. Conference support is provided. The postdoc will work with Dr. Adiel Klompmaker (aaklompmaker@ua.edu) within the University of Alabama Museums’ Department of Museum Research and Collections (https://collections.museums.ua.edu/).
Initial appointment will be for 1 year, with renewal contingent upon funding. The deadline to apply is 5 September 2025 at 22:55 US Central Day Time. The salary will be $56,000 per year. Please upload a cover letter expressing your interest and qualifications, a CV, and contact details of at least two references. To apply and for more information see: https://careers.ua.edu/jobs/688232bd-b82e-49d3-90ea-06601c242dab

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Reposted by Dr. Joe Moysiuk

Cam Muskelly (Explorer of Deep Time ⏰ ⚒️) @cambriancam.bsky.social · Aug 15

Welcome back to #fossilfriday

Here are the boney plates from a Placoderm fish. These come from the Middle Devonian (Givetian) Silica Shale Formation in Sylvania, Ohio. I am unsure as to what genus and species of the fish plates belong to.

-Image is from Wikipedia Commons

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Reposted by Dr. Joe Moysiuk

Kevin Kocot @kmkocot.bsky.social · Aug 13

Postdoctoral Fellow opportunity in paleontology/biology at the University of Alabama Museums with @paleoadiel.bsky.social as part of the NSF-funded project “Energetic Controls on Marine Benthic Community Structure in Space and Time.” For more information see: careers.ua.edu/jobs/688232b...

Figure showing violin plot of chlorophyll-a density in the region of study and fossil mollusks.

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Reposted by Dr. Joe Moysiuk

Dan Bowden @danbowdenpalaeo.bsky.social · Aug 12

I missed #FossilFriday so here are some cool #Eocene flower #fossils from British Columbia’s Allenby Formation. Collected near Princeton, BC.

#PaleoSky #Palaeontology #Paleontology #Palaeobotany #Paleobotany

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Reposted by Dr. Joe Moysiuk

American Museum of Natural History @amnh.org · Aug 11

How do scientists name a newly described species? Museum Postdoctoral Researcher Russell Bicknell, who recently had a trilobite named after himself, explains!

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Reposted by Dr. Joe Moysiuk

Lapworth Museum of Geology @lapworthmuseum.bsky.social · Aug 8

Eophrynus prestvicii, the Coseley Spider, is an extremely well-preserved, 300-million-year-old #arachnid discovered near Dudley. Though it looks like modern #spiders, it was unable to spin a web, instead catching prey using powerful jaws!

#FossilFriday #LapworthRocks #geology #palaeontology

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Dr. Joe Moysiuk @cambrojoe.bsky.social · Aug 9

Celebrating our recent fieldwork this #FossilFriday with this pair of #crinoids from the #Ordovician Red River Formation, Cat Head Member.
#ManitobaFossils #Paleozoic #echinoderm

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Reposted by Dr. Joe Moysiuk

Karen Pauls @karenpaulscbc.bsky.social · Jul 19

Fun day trip this week! On a warm, sunny July day, paleontologist Melina Jobbins and her team search an old rock quarry near Lundar, Man., for 390-million-year-old fossils of an extinct fish that swam in what was once a vast inland sea. www.cbc.ca/news/canada/... @umanitoba.bsky.social

Move over, Jurassic Park. Manitoba was home to newly discovered 390-million-year-old extinct fish | CBC News

A research team from the University of Manitoba has discovered a new genus of placoderm fish, named Elmosteus lundarensis, one of the earliest fish to develop bones, a jaw and teeth.

www.cbc.ca

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Dr. Joe Moysiuk @cambrojoe.bsky.social · Aug 2

Just returned from a fantastic week of field work along the coasts of Lake Winnipeg. Many amazing #Ordovician #fossils now safely back at the museum and lots of new ideas for advancing research in the area. Couldn't have asked for a better team!
#FossilFriday #ManitobaFossils

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Dr. Joe Moysiuk @cambrojoe.bsky.social · Aug 1

The Manitoba Museum is seeking a new Director of Research, Collections, and Exhibitions and Chief Curator:
manitobamuseum.ca/director-of-...

Director of Research, Collections, and Exhibitions (RCE) & Chief Curator - Manitoba Museum

manitobamuseum.ca

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Reposted by Dr. Joe Moysiuk

Jack Tamisiea @jack-tamisiea.bsky.social · Jul 23

Meet Mirasaura, a newly described Triassic reptile that sported a sail of feather-like structures that resembled a well-coiffed pompadour.

Congrats to @stephanspiekman.bsky.social, @hanssues.bsky.social and the rest of their team on a fascinating discovery!

www.smithsonianmag.com/blogs/nation...

Paleontologists Discover a ‘Marvelous’ Triassic Reptile That Sported a Sail of Feather-Like Structures on its Back

The odd structure is distinct from anything seen in living animals and likely created a colorful display

www.smithsonianmag.com

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Reposted by Dr. Joe Moysiuk

Prehistorica (Christian M.) @prehistorica.art · Jul 23

Meet Palaeocampa anthrax, a newly discovered Carboniferous lobopodian, and 150 year old mystery fossil!

Palaeocampa is an exceptional lobopodian - it lived in rivers and lakes, bristled with thousands of poisonous spines, and more. 🧵

Open access: nature.com/articles/s42...

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Dr. Joe Moysiuk @cambrojoe.bsky.social · Jul 23

Save the date for this year's Canadian Paleontology Conference, Nov. 21-22! The conference is free, virtual, and open to all in paleo and related fields 🪨⛏️🔬🦐🐟🦠🦖🦣🦤🦈🪸🪱🐚🪼🐳🐾🦎
www.gacpd.ca/cpc

CPC 2025 | GAC Paleontology

www.gacpd.ca

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Emily Troyer @fishfetisher.bsky.social · Jul 22

Curious about Devonian actinopterygian lower jaws? Look no further--our new paper provides comprehensive descriptions for 19 species in a tidy ~50 page summary! anatomypubs.onlinelibrary.wiley.com/doi/10.1002/...

Panels c-f of Figure 1 depicting the lower jaw of Devonian actinopterygian Gogosardina coatesi

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Reposted by Dr. Joe Moysiuk

Evolution Soup @evolutionsoup.bsky.social · Jul 14

Huge expansion of Nilpena Ediacara National Park a boost to tourism and biodiversity @cambrojoe.bsky.social
#evolutionsoup #evolution #australia #science #fossils
👇🏿👇🏽
is.gd/0Z843R

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Reposted by Dr. Joe Moysiuk

Jack Tamisiea @jack-tamisiea.bsky.social · Jul 7

Happy to help welcome the pterosaur Eotephradactylus (‘ash-winged dawn goddess’) mcintireae into the world!

The winged reptile lived only a few million years before the End Triassic extinction and was discovered in a remote bonebed in Petrified Forest National Park!

www.si.edu/newsdesk/rel...

Smithsonian-Led Team Discovers North America’s Oldest Known Pterosaur

www.si.edu

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