Justin (정환)

Very tiny beetle

Crow on a power line (large-billed crow?)

Dried up sea star on the beach

Some other animals in the vicinity; the crows are so big, practically like ravens! There were also a lot of large hawk-like birds soaring around (apparently black-eared kites, according to a blogger who visited the place before)

I’m not exactly a spider buff, so I only learnt of this species after I looked it up
Still, very glad I got to make this cool observation

Close-up of a jumping spider (Siler cupreus)

Close-up of a jumping spider (Siler cupreus), showing its face and eyes

Photo of a jumping spider (Siler cupreus)

I took a longer video beforehand where it actively tried to intercept the ants, and even lunged at one point, but it kinda chickened out for 15 minutes after that, as in the video above
It eventually disappeared though, so I do think it may have caught one

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

No, that makes sense
Hopefully more prep is done on it

@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?

A new deep-marine elasmobranch fauna from the Late Cretaceous of Bergen (Bavaria, Germany) dominated by squaliform sharks - PalZ This study reports on elasmobranch teeth recovered from bulk-sampling of a deep-marine succession deposited in the northern Tethyan Realm (Bergen, Germany). Analyses of the complex geological setting ...

Addendum: now updated to include Palaeocentroscymnus bavaricus, described today by Feichtinger et al. (link.springer.com/article/10.1...), extending the previously Cenozoic genus into the Maastrichtian
Probably will be discussing this taxon a little more in a future blogpost...

Keurbos susanae, a newly described giant arthropod from the Ordovician-age Soom Shale of South Africa.

Reconstructing Rhinoscymnus clarki Reconstruction of Rhinoscymnus clarki. Rhinoscymnus is a genus of somniosid shark, a group commonly known as sleeper sharks, represented today by the little sleeper shark (Rhinoscymnus rostratus) f…

notesofbonestodustoff.wordpress.com/2025/03/17/r...
Even if this shark doesn't interest you, I've written a whole lot about the fascinating and multifaceted ecologies of Somniosus (which includes the Greenland shark), so hopefully that will be of interest instead :)

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

Sphenoceramus cf sachalinensis

Sphenoceramus cf sachalinensis

Sphenoceramus cf naumanni

Sphenoceramus cf naumanni

#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

Cf Thracia subtruncata

Cf Thracia subtruncata

cf Pholadomya subelongata

Indeterminate bivalve

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

Late Cretaceous spatangoid sea urchin fossils from Saanich Peninsula, Vancouver Island, British Columbia, Canada. From the collection of Dan Bowden

More Late Cretaceous spatangoid sea urchin fossils from Saanich Peninsula, Vancouver Island, British Columbia, Canada. From the collection of Dan Bowden

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

Reposting for #Invertefest... feels a little unorthodox amongst all the extant ones I'm seeing :^)

Birds eye view of 3 long necked plesiosaurs swimming in the sea and surrounded by icebergs. 2 Adults are dark, blending with the deep waters, baby is white

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

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…

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...

Reconstruction of the fossil frog crab Bournelyreidus eysunesensis 🦀

Going up a day earlier than on Twitter: my reconstruction of the Late Cretaceous frog crab Bournelyreidus eysunesensis from Greenland, a source of vexation for the past three months...
#SciArt #paleoart

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)

My first reconstruction of 2024 will probably also be the most frustrating one to have worked on: the fossil sponge crab Sabellidromites laneae from the Campanian Northumberland Fm. in British Columbia
More decapod content coming in the future...
#paleoart #sciart

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...

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...

An albino Jormungandr circles a Ginko adiantoides sapling that was blown into the sea by a recent thunderstorm. It's biting its tail in reference to its namesake, Jõrmungandr the Midgard Serpent, with the ginkgo sapling being a reference to Yggdrasil, the World Tree. On its snout, the scars spell out "ᛃᛟᚱᛗᚢᚾᚷᚨᚾᛞᚱ" which is Jörmungandr in Old Futhark.

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!

Reconstructing fossil cephalopods: Enchoteuthis (“Tusoteuthis” ) Enchoteuthis melanae drifts peacefully amongst a shoal of Baculites. Art by Prehistorica, used with permission. The Enchoteuthinae are a subfamily of large cephalopods from the Cretaceous of North A...

To read more, check out Tyler Greenfield's blogpost on reconstructing these bizarre octobrachians: incertaesedisblog.wordpress.com/2020/07/03/r...
And my own blogpost on this particular specimen from the Northumberland Formation: notesofbonestodustoff.wordpress.com/2023/03/10/r...

Schematic of the Northumberland Enchoteuthis, based on Tyler Greenfield's reconstruction

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 🐡

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

Long-gone serpents of the Cretaceous Pacific – the frilled sharks (Chlamydoselachidae) of the Nort... Size comparison of the Northumberland chlamydoselachids. Human silhouette by GG Cannon, licensed under CC BY-SA 3.0. Frilled sharks (Chlamydoselachidae) are seen as one of the fascinating horrors of...

notesofbonestodustoff.wordpress.com/2023/07/31/l...

and to boot, it also lived with a large ~8 m long mosasaur (Konishi et al. 2012) (silhouette from GetAwayTrike's Prognathodon overtoni skeletal)
Want to read more about this giant frilled shark, as well as its close relatives? I have just the blogpost for that, linked in the replies

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

notesofbonestodustoff.wordpress.com/2023/07/31/l...

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