Justin (정환)
@justinan74.bsky.social
geology undergraduate paleo maniac from British Columbia
currently working on a Northumberland Formation project @ my blog https://notesofbonestodustoff.wordpress.com/
Twitter: @justin_an74
currently working on a Northumberland Formation project @ my blog https://notesofbonestodustoff.wordpress.com/
Twitter: @justin_an74
Pinned
A few years ago, I started my personal project on the Upper Cretaceous Northumberland Formation of British Columbia, and I know proper background has been a long time coming. So here's a blogpost explaining what it's about, how and why I started it, and my future plans
Link in reply ⬇️
Link in reply ⬇️
A few years ago, I started my personal project on the Upper Cretaceous Northumberland Formation of British Columbia, and I know proper background has been a long time coming. So here's a blogpost explaining what it's about, how and why I started it, and my future plans
Link in reply ⬇️
Link in reply ⬇️
October 23, 2025 at 7:05 PM
A few years ago, I started my personal project on the Upper Cretaceous Northumberland Formation of British Columbia, and I know proper background has been a long time coming. So here's a blogpost explaining what it's about, how and why I started it, and my future plans
Link in reply ⬇️
Link in reply ⬇️
Saw a Siler cupreus male(?) in Japan yesterday! It was raising its front legs and shaking its abdomen, so I assumed it was doing a display at the ants at first, but this myrmectophagous species may have been trying to hunt them instead
June 1, 2025 at 10:46 PM
Saw a Siler cupreus male(?) in Japan yesterday! It was raising its front legs and shaking its abdomen, so I assumed it was doing a display at the ants at first, but this myrmectophagous species may have been trying to hunt them instead
@echinoblog.bsky.social very intriguing Late Cretaceous echinoderm fossil from Vancouver Island (not mine) posted in a local paleontology Facebook group (www.facebook.com/groups/nanai...)
Any thoughts?
Any thoughts?
April 13, 2025 at 6:06 AM
@echinoblog.bsky.social very intriguing Late Cretaceous echinoderm fossil from Vancouver Island (not mine) posted in a local paleontology Facebook group (www.facebook.com/groups/nanai...)
Any thoughts?
Any thoughts?
Reposted by Justin (정환)
Keurbos susanae, a newly described giant arthropod from the Ordovician-age Soom Shale of South Africa.
March 29, 2025 at 11:06 AM
Keurbos susanae, a newly described giant arthropod from the Ordovician-age Soom Shale of South Africa.
My first blogpost in over a year is now out! The famous Greenland shark has its own little counterparts in the genus Rhinoscymnus, and among their first records is R. clarki from the Late Cretaceous Northumberland Fm.
How much do we know about them? Check the link in replies ⬇️
#paleoart #sciart
How much do we know about them? Check the link in replies ⬇️
#paleoart #sciart
March 17, 2025 at 5:30 PM
Reposted by Justin (정환)
#MolluscMonday
Examples of Sphenoceramus cf sachalinensis and S. cf naumanni from the Late Cretaceous Nanaimo Group of Saanich Peninsula, Vancouver Island.
#PaleoSky #Fossils #FossilCollecting #NanaimoGroup #Cretaceous #CretaceousPeriod #FossilFriday #Paleontology #Palaeontology
Examples of Sphenoceramus cf sachalinensis and S. cf naumanni from the Late Cretaceous Nanaimo Group of Saanich Peninsula, Vancouver Island.
#PaleoSky #Fossils #FossilCollecting #NanaimoGroup #Cretaceous #CretaceousPeriod #FossilFriday #Paleontology #Palaeontology
February 24, 2025 at 5:07 PM
#MolluscMonday
Examples of Sphenoceramus cf sachalinensis and S. cf naumanni from the Late Cretaceous Nanaimo Group of Saanich Peninsula, Vancouver Island.
#PaleoSky #Fossils #FossilCollecting #NanaimoGroup #Cretaceous #CretaceousPeriod #FossilFriday #Paleontology #Palaeontology
Examples of Sphenoceramus cf sachalinensis and S. cf naumanni from the Late Cretaceous Nanaimo Group of Saanich Peninsula, Vancouver Island.
#PaleoSky #Fossils #FossilCollecting #NanaimoGroup #Cretaceous #CretaceousPeriod #FossilFriday #Paleontology #Palaeontology
Reposted by Justin (정환)
A few more more for #MolluscMonday
These bivalves were collected from the Late Cretaceous rocks of the Nanaimo Group on Saanich Peninsula, Vancouver Island.
#PaleoSky #Fossils #FossilCollecting #NanaimoGroup #Cretaceous #CretaceousPeriod #Paleontology #Palaeontology #FossilFriday
These bivalves were collected from the Late Cretaceous rocks of the Nanaimo Group on Saanich Peninsula, Vancouver Island.
#PaleoSky #Fossils #FossilCollecting #NanaimoGroup #Cretaceous #CretaceousPeriod #Paleontology #Palaeontology #FossilFriday
February 24, 2025 at 5:32 PM
A few more more for #MolluscMonday
These bivalves were collected from the Late Cretaceous rocks of the Nanaimo Group on Saanich Peninsula, Vancouver Island.
#PaleoSky #Fossils #FossilCollecting #NanaimoGroup #Cretaceous #CretaceousPeriod #Paleontology #Palaeontology #FossilFriday
These bivalves were collected from the Late Cretaceous rocks of the Nanaimo Group on Saanich Peninsula, Vancouver Island.
#PaleoSky #Fossils #FossilCollecting #NanaimoGroup #Cretaceous #CretaceousPeriod #Paleontology #Palaeontology #FossilFriday
Reposted by Justin (정환)
An assortment of late Cretaceous spatangoid urchins collected from the Haslam Formation of Saanich Peninsula, Vancouver Island, BC, Canada.
Part of an ongoing project to organize and document fossils in my collection.
#FossilFriday #PaleoSky #FossilCollecting #Fossils #Cretaceous #NanaimoGroup
Part of an ongoing project to organize and document fossils in my collection.
#FossilFriday #PaleoSky #FossilCollecting #Fossils #Cretaceous #NanaimoGroup
February 21, 2025 at 4:06 PM
An assortment of late Cretaceous spatangoid urchins collected from the Haslam Formation of Saanich Peninsula, Vancouver Island, BC, Canada.
Part of an ongoing project to organize and document fossils in my collection.
#FossilFriday #PaleoSky #FossilCollecting #Fossils #Cretaceous #NanaimoGroup
Part of an ongoing project to organize and document fossils in my collection.
#FossilFriday #PaleoSky #FossilCollecting #Fossils #Cretaceous #NanaimoGroup
Reposting for #Invertefest... feels a little unorthodox amongst all the extant ones I'm seeing :^)
December 25, 2024 at 10:33 PM
Reposting for #Invertefest... feels a little unorthodox amongst all the extant ones I'm seeing :^)
Reposted by Justin (정환)
In the frigid waters of jurassic arctic a female Colymbosaurus svalbardensis helps her newborn baby take first breath in it´s life. The protective pod stays close
December 15, 2024 at 5:05 PM
In the frigid waters of jurassic arctic a female Colymbosaurus svalbardensis helps her newborn baby take first breath in it´s life. The protective pod stays close
Reposted by Justin (정환)
Great article on 🦈 Palaeocarcharias from the Tithonian of 🇫🇷 France by Guinot G., Vullo R., Peyer K. et Reneleau V.
Palaeocarcharias is considered here to belong to the Orectolobidae (Orectolobiformes).
@recherche-mnhn.bsky.social @mnhn.fr CR2P #Elasmobranch
www.sciencedirect.com/science/arti...
Palaeocarcharias is considered here to belong to the Orectolobidae (Orectolobiformes).
@recherche-mnhn.bsky.social @mnhn.fr CR2P #Elasmobranch
www.sciencedirect.com/science/arti...
An articulated skeleton of the neoselachian shark Palaeocarcharias from the Late Jurassic Canjuers Lagerstätte (southeastern France)
Nous rapportons et décrivons le seul spécimen de requin articulé collecté dans le Lagerstätte tithonien de Canjuers (Var, sud-est de la France). Ce sp…
www.sciencedirect.com
December 9, 2024 at 5:53 PM
Great article on 🦈 Palaeocarcharias from the Tithonian of 🇫🇷 France by Guinot G., Vullo R., Peyer K. et Reneleau V.
Palaeocarcharias is considered here to belong to the Orectolobidae (Orectolobiformes).
@recherche-mnhn.bsky.social @mnhn.fr CR2P #Elasmobranch
www.sciencedirect.com/science/arti...
Palaeocarcharias is considered here to belong to the Orectolobidae (Orectolobiformes).
@recherche-mnhn.bsky.social @mnhn.fr CR2P #Elasmobranch
www.sciencedirect.com/science/arti...
Reposted by Justin (정환)
Helicoprion, a long extinct shark-esque from the Permian period, ~270 million years ago.
It's known best for it's iconic, sawblade-like tooth whorl
(...which I didn't draw)
It's known best for it's iconic, sawblade-like tooth whorl
(...which I didn't draw)
October 24, 2024 at 3:44 PM
Helicoprion, a long extinct shark-esque from the Permian period, ~270 million years ago.
It's known best for it's iconic, sawblade-like tooth whorl
(...which I didn't draw)
It's known best for it's iconic, sawblade-like tooth whorl
(...which I didn't draw)
Haven't done much since I was last here, but I have published a blogpost about the wonders of Cretaceous dogfish, which I recommend as one of my proudest works yet
notesofbonestodustoff.wordpress.com/2023/12/27/i...
notesofbonestodustoff.wordpress.com/2023/12/27/i...
It’s a dog-eat-dog sea – the dogfish (Squalidae) of the Northumberland Formation
Size comparison of the Northumberland squalids. Dogfish (Squalidae), or spurdogs, are a family of squaliform sharks, currently consisting of the genera Squalus and Cirrhigaleus. While certainly not in...
notesofbonestodustoff.wordpress.com
February 6, 2024 at 7:23 PM
Haven't done much since I was last here, but I have published a blogpost about the wonders of Cretaceous dogfish, which I recommend as one of my proudest works yet
notesofbonestodustoff.wordpress.com/2023/12/27/i...
notesofbonestodustoff.wordpress.com/2023/12/27/i...
Reposted by Justin (정환)
An albino Jormungandr circles a Ginko adiantoides sapling that was blown into the sea by a recent thunderstorm.
Jormungandr is a recently described genus of mosasaur from the Pierre Shale Fm. described by Zietlow et al., (2023) congrats on the successful publication!
Jormungandr is a recently described genus of mosasaur from the Pierre Shale Fm. described by Zietlow et al., (2023) congrats on the successful publication!
October 31, 2023 at 4:05 PM
An albino Jormungandr circles a Ginko adiantoides sapling that was blown into the sea by a recent thunderstorm.
Jormungandr is a recently described genus of mosasaur from the Pierre Shale Fm. described by Zietlow et al., (2023) congrats on the successful publication!
Jormungandr is a recently described genus of mosasaur from the Pierre Shale Fm. described by Zietlow et al., (2023) congrats on the successful publication!
While it may look like a squid, Enchoteuthis is more at home in #OCTOtober, as its closest living relatives are octopuses
While most common in the Late Cretaceous Western Interior Seaway, this specimen shows that the genus also lived in the Pacific, and it has even been found in Australia!
#SciArt 🐡
While most common in the Late Cretaceous Western Interior Seaway, this specimen shows that the genus also lived in the Pacific, and it has even been found in Australia!
#SciArt 🐡
October 17, 2023 at 6:40 PM
While it may look like a squid, Enchoteuthis is more at home in #OCTOtober, as its closest living relatives are octopuses
While most common in the Late Cretaceous Western Interior Seaway, this specimen shows that the genus also lived in the Pacific, and it has even been found in Australia!
#SciArt 🐡
While most common in the Late Cretaceous Western Interior Seaway, this specimen shows that the genus also lived in the Pacific, and it has even been found in Australia!
#SciArt 🐡
Reposted by Justin (정환)
For #FossilFriday, here's the largest known frilled shark: a giant Proteothrinax specimen from the Late Cretaceous (Maastrichtian) of Japan
Although the exact measurements are tentative, it appears to have reached lengths of ~7 m, making it one of the largest squalomorphs ever
Although the exact measurements are tentative, it appears to have reached lengths of ~7 m, making it one of the largest squalomorphs ever
October 6, 2023 at 6:42 PM
For #FossilFriday, here's the largest known frilled shark: a giant Proteothrinax specimen from the Late Cretaceous (Maastrichtian) of Japan
Although the exact measurements are tentative, it appears to have reached lengths of ~7 m, making it one of the largest squalomorphs ever
Although the exact measurements are tentative, it appears to have reached lengths of ~7 m, making it one of the largest squalomorphs ever
For #FossilFriday, here's the largest known frilled shark: a giant Proteothrinax specimen from the Late Cretaceous (Maastrichtian) of Japan
Although the exact measurements are tentative, it appears to have reached lengths of ~7 m, making it one of the largest squalomorphs ever
Although the exact measurements are tentative, it appears to have reached lengths of ~7 m, making it one of the largest squalomorphs ever
October 6, 2023 at 6:42 PM
For #FossilFriday, here's the largest known frilled shark: a giant Proteothrinax specimen from the Late Cretaceous (Maastrichtian) of Japan
Although the exact measurements are tentative, it appears to have reached lengths of ~7 m, making it one of the largest squalomorphs ever
Although the exact measurements are tentative, it appears to have reached lengths of ~7 m, making it one of the largest squalomorphs ever
For #SundayFishSketch, here's my reconstruction of the giant frilled shark Proteothrinax goliath from the Late Cretaceous (Campanian, ~72 ma) of Angola; one of the largest chlamydoselachids, but not *the* largest...
Check out my blogpost to learn more about these sharks! Link in the replies
Check out my blogpost to learn more about these sharks! Link in the replies
October 1, 2023 at 8:24 PM
For #SundayFishSketch, here's my reconstruction of the giant frilled shark Proteothrinax goliath from the Late Cretaceous (Campanian, ~72 ma) of Angola; one of the largest chlamydoselachids, but not *the* largest...
Check out my blogpost to learn more about these sharks! Link in the replies
Check out my blogpost to learn more about these sharks! Link in the replies
Reposted by Justin (정환)
Hey, I'm George and I do little clay models and dioramas of prehistoric creatures. Follow for plenty of silly little creatures!
September 20, 2023 at 3:37 PM
Hey, I'm George and I do little clay models and dioramas of prehistoric creatures. Follow for plenty of silly little creatures!
Reposted by Justin (정환)
Welcome new people! I’m a 3D paleoartist who works in Blender and Zbrush primarily. Here’s some dinosaur models of mine made in the past few years
September 19, 2023 at 12:42 PM
Welcome new people! I’m a 3D paleoartist who works in Blender and Zbrush primarily. Here’s some dinosaur models of mine made in the past few years
Reposted by Justin (정환)
Fujianvenator prodigiosus, a small recently described avialan strides amongst the rocks of a dried creek.
Still a pretty new sketch and also my first post around here :>
#paleoart
Still a pretty new sketch and also my first post around here :>
#paleoart
September 19, 2023 at 1:56 PM
Fujianvenator prodigiosus, a small recently described avialan strides amongst the rocks of a dried creek.
Still a pretty new sketch and also my first post around here :>
#paleoart
Still a pretty new sketch and also my first post around here :>
#paleoart
Reposted by Justin (정환)
Microraptor on the hunt
🐡🎨🪶🧪 #paleontology
🐡🎨🪶🧪 #paleontology
September 19, 2023 at 4:01 PM
Microraptor on the hunt
🐡🎨🪶🧪 #paleontology
🐡🎨🪶🧪 #paleontology