Lucas Petrin
@fossilfracas.com
Associate Editor: Maps and Graphics at NatGeo Magazine. Illustrator, designer and more.
Known elsewhere as FossilFracas, or Fracas
#Designersaur
Known elsewhere as FossilFracas, or Fracas
#Designersaur
Orctober's coming to a close so soon...
October 24, 2025 at 11:35 PM
Orctober's coming to a close so soon...
Warhammer Wednesday! Capping off my night with a mournfang. I’ve sketched this fellow up to be more ungulate than carnivore.
#warhammerwednesday #ageofsigmar #theoldworld #ogormawtribes #cartoon #mournfang #warhammercommunity
#warhammerwednesday #ageofsigmar #theoldworld #ogormawtribes #cartoon #mournfang #warhammercommunity
August 14, 2025 at 1:41 AM
Warhammer Wednesday! Capping off my night with a mournfang. I’ve sketched this fellow up to be more ungulate than carnivore.
#warhammerwednesday #ageofsigmar #theoldworld #ogormawtribes #cartoon #mournfang #warhammercommunity
#warhammerwednesday #ageofsigmar #theoldworld #ogormawtribes #cartoon #mournfang #warhammercommunity
The quest for refinement, resulting in a flamboyant, Fracas-style Compsognathus. Pigeon colors took over, leading to some more stylized feathers and unnatural traits.
July 22, 2025 at 1:11 PM
The quest for refinement, resulting in a flamboyant, Fracas-style Compsognathus. Pigeon colors took over, leading to some more stylized feathers and unnatural traits.
A freak mutation, an island population, a rainforest destination? Trolls inhabiting the Western Rainforests speciated into some of the wackiest, most diverse creatures of the jungles, eating everything from leaves to honey.
June 16, 2025 at 12:53 AM
A freak mutation, an island population, a rainforest destination? Trolls inhabiting the Western Rainforests speciated into some of the wackiest, most diverse creatures of the jungles, eating everything from leaves to honey.
It’s #WarhammerWednesday with a Mirebrute Troggoth! These swamp-dwelling beasts can fully regenerate from horrific injury, recovering from lost limbs and “certain” death. Painfully stupid, they are given massive clubs and ridden into battle by the tribes of swamp orruks.
#warhammer #ageofsigmar
#warhammer #ageofsigmar
March 19, 2025 at 9:37 PM
It’s #WarhammerWednesday with a Mirebrute Troggoth! These swamp-dwelling beasts can fully regenerate from horrific injury, recovering from lost limbs and “certain” death. Painfully stupid, they are given massive clubs and ridden into battle by the tribes of swamp orruks.
#warhammer #ageofsigmar
#warhammer #ageofsigmar
This mean, rocky monster-truck demolished my poor Kruleboyz in my last game of Age of Sigmar. Give it up for the stonehorn!
#warhammer #ageofsigmar #warhammercommunity
#warhammer #ageofsigmar #warhammercommunity
March 10, 2025 at 9:59 PM
This mean, rocky monster-truck demolished my poor Kruleboyz in my last game of Age of Sigmar. Give it up for the stonehorn!
#warhammer #ageofsigmar #warhammercommunity
#warhammer #ageofsigmar #warhammercommunity
Thank you! Sloths are definitely an under-represented group, it’s crazy just how many species are unknown to the public.
Recently I’ve been a bit slow on the paleoart, definitely something I need to pick back up. Very proud of my beer can labels however. Here’s a hadrosaurus!
Recently I’ve been a bit slow on the paleoart, definitely something I need to pick back up. Very proud of my beer can labels however. Here’s a hadrosaurus!
November 8, 2024 at 5:35 AM
Thank you! Sloths are definitely an under-represented group, it’s crazy just how many species are unknown to the public.
Recently I’ve been a bit slow on the paleoart, definitely something I need to pick back up. Very proud of my beer can labels however. Here’s a hadrosaurus!
Recently I’ve been a bit slow on the paleoart, definitely something I need to pick back up. Very proud of my beer can labels however. Here’s a hadrosaurus!
Celebrating the final day of #Orctober with a Kruleboy! I love the chain-mace swinging orruk from the Stab Ladz (Warhammer Underworlds warband), so this is loosely based on it.
#warhammer #aos #ageofsigmar #orrukwarclans #kruleboyz
#warhammer #aos #ageofsigmar #orrukwarclans #kruleboyz
October 31, 2024 at 10:59 PM
Celebrating the final day of #Orctober with a Kruleboy! I love the chain-mace swinging orruk from the Stab Ladz (Warhammer Underworlds warband), so this is loosely based on it.
#warhammer #aos #ageofsigmar #orrukwarclans #kruleboyz
#warhammer #aos #ageofsigmar #orrukwarclans #kruleboyz
October 24, 2024 at 4:27 PM
Squigs, sketched on paper and digitally filled - 2022
October 24, 2024 at 3:38 PM
Squigs, sketched on paper and digitally filled - 2022
October 23, 2024 at 4:33 PM
Good morning goblins
October 23, 2024 at 1:07 PM
Good morning goblins
Howdy everyone! I’m an associate graphics editor at National Geographic with a passion for prehistory and fantasy! I make cartoon creatures and trolls in my spare time.
🖥️ Thefracas.art
🖥️ Thefracas.art
October 22, 2024 at 4:44 PM
Howdy everyone! I’m an associate graphics editor at National Geographic with a passion for prehistory and fantasy! I make cartoon creatures and trolls in my spare time.
🖥️ Thefracas.art
🖥️ Thefracas.art
Looking to show off your exorbitant wealth? Buy a Designersaur®!
Cooked in a lab, the aptly named “Dragon” DNA adds a flair only few can afford. A viral process allows features to be altered from vat-grown Stemplates® at will!
#Designersaur
Cooked in a lab, the aptly named “Dragon” DNA adds a flair only few can afford. A viral process allows features to be altered from vat-grown Stemplates® at will!
#Designersaur
October 22, 2024 at 4:15 PM
Looking to show off your exorbitant wealth? Buy a Designersaur®!
Cooked in a lab, the aptly named “Dragon” DNA adds a flair only few can afford. A viral process allows features to be altered from vat-grown Stemplates® at will!
#Designersaur
Cooked in a lab, the aptly named “Dragon” DNA adds a flair only few can afford. A viral process allows features to be altered from vat-grown Stemplates® at will!
#Designersaur
The goofiest of my creations, the dreaded dinochicken exists at the cruel whims of uncaring venture capitalists. Ethics be damned, the dinosaurs will return!
October 22, 2024 at 12:49 PM
The goofiest of my creations, the dreaded dinochicken exists at the cruel whims of uncaring venture capitalists. Ethics be damned, the dinosaurs will return!
The observer becomes the observed - 2023
October 20, 2024 at 10:21 PM
The observer becomes the observed - 2023
#Trogtober No. 7
Wait a minute… that’s not a troglodoid! Unless?
Gnomes are evolutionary relatives of trolls. They’re sapient, intelligent and sadly… food. Trogs voraciously devour their distant kin.
Wait a minute… that’s not a troglodoid! Unless?
Gnomes are evolutionary relatives of trolls. They’re sapient, intelligent and sadly… food. Trogs voraciously devour their distant kin.
October 18, 2024 at 11:04 PM
#Trogtober No. 7
Wait a minute… that’s not a troglodoid! Unless?
Gnomes are evolutionary relatives of trolls. They’re sapient, intelligent and sadly… food. Trogs voraciously devour their distant kin.
Wait a minute… that’s not a troglodoid! Unless?
Gnomes are evolutionary relatives of trolls. They’re sapient, intelligent and sadly… food. Trogs voraciously devour their distant kin.
#Trogtober 6 - Picking up the pieces
Appearances can be deceiving. One of the earliest described Troglodoids ended up linking two impossible branches of the family tree…
Appearances can be deceiving. One of the earliest described Troglodoids ended up linking two impossible branches of the family tree…
October 6, 2024 at 11:39 PM
#Trogtober 6 - Picking up the pieces
Appearances can be deceiving. One of the earliest described Troglodoids ended up linking two impossible branches of the family tree…
Appearances can be deceiving. One of the earliest described Troglodoids ended up linking two impossible branches of the family tree…
#Trogtober 5 - Backyard breeding
The purple color of this Bullytrog is a statement to their inbreeding. Foolishly named and horribly maintained, these creatures are dead ends for the sake of aesthetic.
The purple color of this Bullytrog is a statement to their inbreeding. Foolishly named and horribly maintained, these creatures are dead ends for the sake of aesthetic.
October 5, 2024 at 9:32 PM
#Trogtober 5 - Backyard breeding
The purple color of this Bullytrog is a statement to their inbreeding. Foolishly named and horribly maintained, these creatures are dead ends for the sake of aesthetic.
The purple color of this Bullytrog is a statement to their inbreeding. Foolishly named and horribly maintained, these creatures are dead ends for the sake of aesthetic.
#Trogtober 4th - salty abomination
Waldurs were originally mistaken to be monstrous walruses, which would make sense as they tend to rest among the colonies.
Waldurs were originally mistaken to be monstrous walruses, which would make sense as they tend to rest among the colonies.
October 4, 2024 at 9:25 PM
#Trogtober 4th - salty abomination
Waldurs were originally mistaken to be monstrous walruses, which would make sense as they tend to rest among the colonies.
Waldurs were originally mistaken to be monstrous walruses, which would make sense as they tend to rest among the colonies.
#Trogtober 3rd - big and tall
The first lineage of troglodoids, these behemoths are almost entirely dependent on their healing factor. Without it, the constant breakages of their wristbones would prove deadly.
The first lineage of troglodoids, these behemoths are almost entirely dependent on their healing factor. Without it, the constant breakages of their wristbones would prove deadly.
October 3, 2024 at 9:12 PM
#Trogtober 3rd - big and tall
The first lineage of troglodoids, these behemoths are almost entirely dependent on their healing factor. Without it, the constant breakages of their wristbones would prove deadly.
The first lineage of troglodoids, these behemoths are almost entirely dependent on their healing factor. Without it, the constant breakages of their wristbones would prove deadly.
#Trogtober the 2nd - gangly and wicked
Stilt-legged raksha are maneaters, among the many large prey items they consume. Bearing large pads of naturally developing scar tissue, these monsters were nearly condemned to extinction as soon as firearms became wildly available.
Stilt-legged raksha are maneaters, among the many large prey items they consume. Bearing large pads of naturally developing scar tissue, these monsters were nearly condemned to extinction as soon as firearms became wildly available.
October 2, 2024 at 9:24 PM
#Trogtober the 2nd - gangly and wicked
Stilt-legged raksha are maneaters, among the many large prey items they consume. Bearing large pads of naturally developing scar tissue, these monsters were nearly condemned to extinction as soon as firearms became wildly available.
Stilt-legged raksha are maneaters, among the many large prey items they consume. Bearing large pads of naturally developing scar tissue, these monsters were nearly condemned to extinction as soon as firearms became wildly available.
Trogtober 1st - blue and lumpy
It’s officially #Trogtober and we’re starting off horrid. Troglodoids are natural? Unnatural? Experts are undecided. Lab and conservation workers describe a strange sensation when in the presence of living specimens.
It’s officially #Trogtober and we’re starting off horrid. Troglodoids are natural? Unnatural? Experts are undecided. Lab and conservation workers describe a strange sensation when in the presence of living specimens.
October 1, 2024 at 4:45 PM
Trogtober 1st - blue and lumpy
It’s officially #Trogtober and we’re starting off horrid. Troglodoids are natural? Unnatural? Experts are undecided. Lab and conservation workers describe a strange sensation when in the presence of living specimens.
It’s officially #Trogtober and we’re starting off horrid. Troglodoids are natural? Unnatural? Experts are undecided. Lab and conservation workers describe a strange sensation when in the presence of living specimens.