Toothy Grin
@toothygrinart.bsky.social
I make palaeontology-themed merchandise including greeting cards, badges and t-shirts. Follow for product updates and random palaeo-related stuff. Buy something at toothygrin.com.au
In these trying times, take some advice from a giant extinct marsupial named ‘Ambulator’. Now available from the Toothy Grin online shop.
December 2, 2025 at 10:24 PM
In these trying times, take some advice from a giant extinct marsupial named ‘Ambulator’. Now available from the Toothy Grin online shop.
Siderops.
All this, and then the lamest George and the Dragon ever painted! Look at its little face!
December 2, 2025 at 9:33 PM
Siderops.
Some new badges! There’s a mix of new designs and colour variants here. Among them are Antechinus, Trilophosuchus, Sarcosuchus, Deinosuchus, Edenerpeton and Petaurus.
December 1, 2025 at 10:53 PM
Some new badges! There’s a mix of new designs and colour variants here. Among them are Antechinus, Trilophosuchus, Sarcosuchus, Deinosuchus, Edenerpeton and Petaurus.
I spent this week at CAVEPS, which is the best vert palaeo conference in Oz + NZ.
190 delegates attended #CAVEPS2025 in Kaurna Yarra / Adelaide this week! A big thanks from the organising committee to everyone involved for helping it be such a fabulous meeting! @megalibgwilia.bsky.social
Next time, Otago! 🇳🇿
Next time, Otago! 🇳🇿
November 28, 2025 at 8:58 AM
I spent this week at CAVEPS, which is the best vert palaeo conference in Oz + NZ.
Can't wait!
#PrehistoricPlanet
5 DAYS UNTIL #PrehistoricPlanetIceAge !
The great beasts of Australia have never been more photoreal
5 DAYS UNTIL #PrehistoricPlanetIceAge !
The great beasts of Australia have never been more photoreal
November 22, 2025 at 3:53 AM
Can't wait!
Never expected to see one of my drawings on a beer.
The jacaranda is blooming and the CAVEPS beers are here 💜 Must be time for CAVEPS 2025 to begin! Can’t wait to see more than 180 delegates descend on Kaurna Yarta/Adelaide this week!
November 21, 2025 at 1:22 PM
Never expected to see one of my drawings on a beer.
Reposted by Toothy Grin
Anyone know what's going on with this strange looking kangaroo...
#palaeoart #paleoart #procoptodon #megafauna
#palaeoart #paleoart #procoptodon #megafauna
November 19, 2025 at 9:01 PM
Anyone know what's going on with this strange looking kangaroo...
#palaeoart #paleoart #procoptodon #megafauna
#palaeoart #paleoart #procoptodon #megafauna
Reposted by Toothy Grin
@jorgoristevski.bsky.social just alterted me to this absolutely horrible page of false AI slop being passed off as an educational page on the Queensland Museum website.
www.museum.qld.gov.au/learn-and-di...
1/n
www.museum.qld.gov.au/learn-and-di...
1/n
Drop Croc - Animals of Queensland | Queensland Museum
The Drop Croc is a purported species of prehistoric crocodile that scientists say once inhabited the lush forests of ancient Queensland. Unlike its modern aquatic relatives, the Drop Croc is believed ...
www.museum.qld.gov.au
November 17, 2025 at 12:50 AM
@jorgoristevski.bsky.social just alterted me to this absolutely horrible page of false AI slop being passed off as an educational page on the Queensland Museum website.
www.museum.qld.gov.au/learn-and-di...
1/n
www.museum.qld.gov.au/learn-and-di...
1/n
Reposted by Toothy Grin
A couple more reptiles I want to appear in PhP Ice Age are Paludirex and Quinkana. Megalania and the saltwater crocodile weren’t the only large predatory reptiles of Pleistocene Australia.
Here I’m going to focus on Paludirex.
Here I’m going to focus on Paludirex.
November 16, 2025 at 1:54 PM
A couple more reptiles I want to appear in PhP Ice Age are Paludirex and Quinkana. Megalania and the saltwater crocodile weren’t the only large predatory reptiles of Pleistocene Australia.
Here I’m going to focus on Paludirex.
Here I’m going to focus on Paludirex.
If you can't get any aDNA, use collagen instead. I wonder if this technique might help resolve the taxonomy of suggested "dwarfed" species like Macropus titan/giganteus or Sarcophilus laniarius/harrisii?
November 16, 2025 at 12:35 PM
If you can't get any aDNA, use collagen instead. I wonder if this technique might help resolve the taxonomy of suggested "dwarfed" species like Macropus titan/giganteus or Sarcophilus laniarius/harrisii?
Reposted by Toothy Grin
Well this is as done as it's going to get. Tiliqua frangens, a megafauna skink from pleiocene and pleistocene australia with large pointy scales feeding on spring wildflowers. #palaeoart #palaeoart #reptile #lizard
November 15, 2025 at 5:13 PM
Well this is as done as it's going to get. Tiliqua frangens, a megafauna skink from pleiocene and pleistocene australia with large pointy scales feeding on spring wildflowers. #palaeoart #palaeoart #reptile #lizard
Reposted by Toothy Grin
doi.org/10.1098/rsos...
new paper out now with @royalsociety.org on limb structure & function of the #fossil #kangaroo, Dorcopsoides fossilis, from central Australia. The oldest known macropodine (subfamily of all but one of living roos) & a fun glimpse into the great Late Miocene kangaroo radiation
new paper out now with @royalsociety.org on limb structure & function of the #fossil #kangaroo, Dorcopsoides fossilis, from central Australia. The oldest known macropodine (subfamily of all but one of living roos) & a fun glimpse into the great Late Miocene kangaroo radiation
November 12, 2025 at 6:26 AM
doi.org/10.1098/rsos...
new paper out now with @royalsociety.org on limb structure & function of the #fossil #kangaroo, Dorcopsoides fossilis, from central Australia. The oldest known macropodine (subfamily of all but one of living roos) & a fun glimpse into the great Late Miocene kangaroo radiation
new paper out now with @royalsociety.org on limb structure & function of the #fossil #kangaroo, Dorcopsoides fossilis, from central Australia. The oldest known macropodine (subfamily of all but one of living roos) & a fun glimpse into the great Late Miocene kangaroo radiation
Reposted by Toothy Grin
New paper describing the eggshells likely belonging to the early mekosuchine Kambara, possibly indicating a different incubation method relative to modern crocodiles
doi.org/10.1080/0272...
doi.org/10.1080/0272...
Australia’s oldest crocodylian eggshell: insights into the reproductive paleoecology of mekosuchines
Alongside large madtsoiid snakes, the largest known lizards, thylacoleonid marsupials and a range of other terrestrial carnivores, the now extinct mekosuchine crocodylians were significant predator...
doi.org
November 11, 2025 at 8:49 PM
New paper describing the eggshells likely belonging to the early mekosuchine Kambara, possibly indicating a different incubation method relative to modern crocodiles
doi.org/10.1080/0272...
doi.org/10.1080/0272...
Croc eggshell from Tingamarra!
www.tandfonline.com/doi/full/10....
www.tandfonline.com/doi/full/10....
Australia’s oldest crocodylian eggshell: insights into the reproductive paleoecology of mekosuchines
Alongside large madtsoiid snakes, the largest known lizards, thylacoleonid marsupials and a range of other terrestrial carnivores, the now extinct mekosuchine crocodylians were significant predator...
www.tandfonline.com
November 11, 2025 at 9:13 PM
Croc eggshell from Tingamarra!
www.tandfonline.com/doi/full/10....
www.tandfonline.com/doi/full/10....
Reposted by Toothy Grin
Some tideous studies for an upcoming illustration of a certain fragmentary Wakaleo Species, perhaps the youngest of them...
Credit to gtg141 on DeviantArt for the W. schouteni and W. oldfieldi skull reconstruction as helpful guides to doing my own reconstruction of W. alcootaensis.
#sciart
Credit to gtg141 on DeviantArt for the W. schouteni and W. oldfieldi skull reconstruction as helpful guides to doing my own reconstruction of W. alcootaensis.
#sciart
November 10, 2025 at 1:00 PM
Some tideous studies for an upcoming illustration of a certain fragmentary Wakaleo Species, perhaps the youngest of them...
Credit to gtg141 on DeviantArt for the W. schouteni and W. oldfieldi skull reconstruction as helpful guides to doing my own reconstruction of W. alcootaensis.
#sciart
Credit to gtg141 on DeviantArt for the W. schouteni and W. oldfieldi skull reconstruction as helpful guides to doing my own reconstruction of W. alcootaensis.
#sciart
I'd like to nominate "Diprotodudes" as word of the year.
I HEREBY CHALLENGE ALL RIPPER LIZARDS WITHIN A FIVE MILE RADIUS TO MORTAL COMBAT!!!
(…And any Diprotodudes)
(…And any Diprotodudes)
November 10, 2025 at 12:21 PM
I'd like to nominate "Diprotodudes" as word of the year.
The news today is making me think of this amended display in the biology building at UNSW.
November 7, 2025 at 9:31 PM
The news today is making me think of this amended display in the biology building at UNSW.
Reposted by Toothy Grin
this has to be one of the cutest animals ever
November 7, 2025 at 10:03 AM
this has to be one of the cutest animals ever
Reposted by Toothy Grin
(Recent art) Ceratodus nargan Illustration!
Ceratodus is a wide spread prehistoric lungfish species that is related to the extant queensland lungfish. Here lies a species in the Early Cretaceous of Southern Victoria, Australia, in the Euremella formation.
#paleoart #sciart #illustraation #fishart
Ceratodus is a wide spread prehistoric lungfish species that is related to the extant queensland lungfish. Here lies a species in the Early Cretaceous of Southern Victoria, Australia, in the Euremella formation.
#paleoart #sciart #illustraation #fishart
November 5, 2025 at 7:32 AM
(Recent art) Ceratodus nargan Illustration!
Ceratodus is a wide spread prehistoric lungfish species that is related to the extant queensland lungfish. Here lies a species in the Early Cretaceous of Southern Victoria, Australia, in the Euremella formation.
#paleoart #sciart #illustraation #fishart
Ceratodus is a wide spread prehistoric lungfish species that is related to the extant queensland lungfish. Here lies a species in the Early Cretaceous of Southern Victoria, Australia, in the Euremella formation.
#paleoart #sciart #illustraation #fishart
Reposted by Toothy Grin
One of the largest temmnospondyls ever to exist: the gigantic Koolasuchus was also the last non-lissamphibian temnospondyl to exist. It survived into the Early Cretaceous of Australia when all other stereospondyls were long gone
#temnospondyls #paleoart
#temnospondyls #paleoart
November 3, 2025 at 4:49 PM
One of the largest temmnospondyls ever to exist: the gigantic Koolasuchus was also the last non-lissamphibian temnospondyl to exist. It survived into the Early Cretaceous of Australia when all other stereospondyls were long gone
#temnospondyls #paleoart
#temnospondyls #paleoart
Reposted by Toothy Grin
Leaellynasaura dinosaur illustration for James Stryker's paleoart project.
#Dinosaur #Paleoart #Leallynasaura #Paleoillustration
#Dinosaur #Paleoart #Leallynasaura #Paleoillustration
October 29, 2025 at 4:53 PM
Leaellynasaura dinosaur illustration for James Stryker's paleoart project.
#Dinosaur #Paleoart #Leallynasaura #Paleoillustration
#Dinosaur #Paleoart #Leallynasaura #Paleoillustration
Reposted by Toothy Grin
The story of extinctions and population depletions in the late Quaternary is a complex one. Climate and humans interference in shaping diversity is always convoluted. Here is the story from the Australian lizards' point of view 👇
www.cell.com/current-biol...
🧪 ⚒️ #Paleobio #Macroecology
www.cell.com/current-biol...
🧪 ⚒️ #Paleobio #Macroecology
October 30, 2025 at 9:15 AM
The story of extinctions and population depletions in the late Quaternary is a complex one. Climate and humans interference in shaping diversity is always convoluted. Here is the story from the Australian lizards' point of view 👇
www.cell.com/current-biol...
🧪 ⚒️ #Paleobio #Macroecology
www.cell.com/current-biol...
🧪 ⚒️ #Paleobio #Macroecology
Coming to CAVEPS next month? Get your conference shirts from the Toothy Grin online shop!
www.toothygrin.com.au/shop/categor...
www.toothygrin.com.au/shop/categor...
October 28, 2025 at 12:39 AM
Coming to CAVEPS next month? Get your conference shirts from the Toothy Grin online shop!
www.toothygrin.com.au/shop/categor...
www.toothygrin.com.au/shop/categor...
Replica skeleton of Baru iylwenpeny on display at the Queensland Museum. This is part of the new Croc! exhibit. #MuseumCore #CrocQM
October 28, 2025 at 12:34 AM
Replica skeleton of Baru iylwenpeny on display at the Queensland Museum. This is part of the new Croc! exhibit. #MuseumCore #CrocQM