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dynamoterror.bsky.social
Dynamognathus
@dynamoterror.bsky.social
580 followers 360 following 930 posts
Wildlife, rewilding, spec-evo, and paleontology enthusiast/artist.
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dynamoterror.bsky.social
Colored sketch of the newly-validated Nanotyrannus lancensis, though it’s not having a good time. This baby has found itself grappled by a particularly ambitious Didelphodon, after wandering a little too far from home. #backinhell #paleoart #sciart #cretaceous
Colored-pencil drawing of a Didelphodon in a sit-up position, grabbing onto a fluffy baby Nanotyrannus with both hands and one of its feet while its jaws completely envelop and crush the back of the small theropod’s skull. The Didelphodon is overall very dark brown in color, while the baby Nanotyrannus is a mix of olive tan and orange with thin dorsal stripes.
November 10, 2025 at 12:42 PM
dynamoterror.bsky.social
A quick doodle for the final day of #GarWeek, a large melanistic Alligator Gar cruises underneath an oblivious Ocelot somewhere in the bayous of Louisiana. A scene that may have happened several times in the past, and may continue to occur if both species are valued and protected. #wildlife #sciart
Black-and-white pencil sketch of a melanistic Alligator Gar swimming underneath a much smaller Ocelot that’s paddling on the surface above it.
November 10, 2025 at 3:51 AM
dynamoterror.bsky.social
Tonight’s flocking #Paleostream sketches (it’s been a hot minute): Nanotyrannus in the woods, Pteranodon over Protosphyraena, Phosphorosaurus + sturgeon lunch, and Helicoprion. #paleoart #sciart #cretaceous #permian #backinhell
Four black-and-white pencil sketches of prehistoric animals, arranged in four quadrants on a piece of paper. In the top left is a Nanotyrannus, facing angled away from the viewer between several very large trees. In the top right is a female Pteranodon flying low over the water of the open ocean, looking at a large Protosphyraena fish swimming at the surface. In the bottom left is a Phosphorosaurus swimming with a particularly large sturgeon writhing in its jaws. In the bottom right is an up-close face of Helicoprion in side view, showcasing small scars and sensory pores as it swims upwards.
November 8, 2025 at 2:46 AM
dynamoterror.bsky.social
M O N K E

#pleistocene #gigantopithecus #prehistoricplanet #prehistoricplaneticeage
A promotional image from the Apple TV website on Prehistoric Planet: Ice Age, showing the face, shoulders, and hand of the massive extinct ape Gigantopithecus as it pulls a small twig through its lips.
November 6, 2025 at 8:29 PM
dynamoterror.bsky.social
Perhaps African Homotherium? From the material shown so far, it seems like we’ll be getting both Smilodon and Homotherium in multiple regions.
A fan-made compilation of all the so-far-released promotional images of Sabertooth cats in Prehistoric Planet: Ice Age, roughly organized by genus. Not all of these identities are confirmed yet, this is just my best guess. There’s an image of Smilodon with relatively dark striping, and image of a Smilodon with more pale striping in an Araucaria forest, and many images of both confirmed and suspected Homotherium.
November 6, 2025 at 7:42 PM
dynamoterror.bsky.social
This season appears to be showcasing pretty much every corner of the globe, including a lot of taxa who have little/no media appearances.
An image from the Apple TV website about Prehistoric Planet: Ice Age, showcasing a large flock/herd of large elephant birds in a grassy field in Madagascar. They have long wattles hanging from their neck, and are overall dark in color. An image from the Apple TV website about Prehistoric Planet: Ice Age, showcasing a standoff between a herd of Woolly Rhinoceros and a pack of Homotherium, in deep snow in a boreal forest. A screenshot from the new trailer for Apple TV’s Prehistoric Planet: Ice Age, showcasing an Araucaria forest covered in snow, with a big cat (likely Smilodon populator) walking amongst the massive trees. Text that reads “AN EPIC 5-PART EVENT” sits just above the treeline. An image from the Apple TV website about Prehistoric Planet: Ice Age, showcasing an Elasmotherium standing in a colorful field of flowers with a forest in the background, lifting its head and opening its mouth to make some sort of call. It is overall brown with shaggy fur, and has a thinly-keratin-covered boss on its head.
November 6, 2025 at 6:57 PM
dynamoterror.bsky.social
I don't post it here much, but I love photographing wildlife nearly as much as I love drawing it. Here, a Chipping Sparrow borb rests atop the neighbor's fence. #wildlife #bird #photography
A photograph of a small Chipping Sparrow sitting on the top of a tall, pale-brown wooden fence, facing towards the right. Behind it is a blurry green background of the woods. The sparrow is a deeper brown than the fence, with bars and stripes on its wings and a reddish top of its head.
November 5, 2025 at 12:46 PM
dynamoterror.bsky.social
On the coast of Pliocene California, a Homotherium pounces upon a newborn Herpetocetus morrowi. These are Cetotheres, small baleen whales that thrived during the Miocene/Pliocene. For the sabertooth, such a tiny calf so close to shore is a rare treat. #paleoart #sciart #pliocene #california
Black-and-white pencil drawing of a predation scene in the shallow coastal waters of California during the Pliocene. Near a large rock, a mother Herpetocetus morrowi (four-meter-long baleen whale) rests at the surface with her newborn calf balancing on her back. She has just begun to curve downwards in a dive, as a relatively large Homotherium sabertooth-cat is leaping towards her tiny calf with its front paws outstretched. The large cat had been crouched atop the nearby rock. In the distance, a massive cumulus cloud sits just above the surface of the open ocean. On the seafloor below are two small sea urchins, and on the base of the large rock near the seafloor is a Pacific Rock Crab.
November 4, 2025 at 7:51 PM
dynamoterror.bsky.social
Quick finger-painting of a wild horse, using water, red clay, and a sidewalk. There were many wild horses here throughout most of the Cenozoic up until the very recent past, but now only scattered fossils and subfossils remain. Inspired by @nicodelort.bsky.social.
#horse #paleoart #clay
Photograph of a quick finger-painting of a horse in side-view on a sidewalk, using water and red clay.
November 1, 2025 at 10:00 PM
dynamoterror.bsky.social
October’s #NearbyNature2025 post is of Ctenus hibernalis, a harmless species of wandering spider found almost exclusively in Alabama. They are comparable in size to large wolf and fishing spiders, but are way more secretive than either (I’ve only ever found three). #sciart #wildlife #alabama
A colored-pencil drawing of the wandering spider Ctenus hibernalis in dorsal view. It is overall dark brown, with a pale dorsal stripe on both the cephalothorax and the abdomen. Its legs are posed asymmetrically, in a relatively active pose.
November 1, 2025 at 3:03 AM
dynamoterror.bsky.social
This part in particular intrigues me, hopefully there are some areas without large (and growing) invasive plant populations where horse/other ungulate dynamics can be studied.
Screenshot of a small piece of the above Wildlife Society article, on which are the words “But the feral horses and domestic cattle had an advantage over native ungulates. Scat analysis revealed that they made meals of more nonnative forage plants like dandelions and clover, which native ungulates don’t eat. This behavior helps horses outcompete the native ungulates and boosts the spread of these plants, as the horses spread the seeds around more widely.”
October 31, 2025 at 4:27 PM
dynamoterror.bsky.social
Quick sketches of a concept I just had for my personal spec-evo project, a Kerguelen “Panther” that’s actually a cat-convergent Tritylodont. It’d be one of the apex predators of the Kerguelen landmass during the Holocene, sometimes attacking adult “dragons”. All of this is a long-term WIP. #specevo
Three rough black-and-white pencil sketches on lined paper. The top one is a skull of a fictional, big-cat-convergent Tritylodont in side-view. It has two large upper incisors that sit on either side of two large lower incisors, and huge, blade-like rear teeth. The sketch below it is a life drawing of the Tritylodont in side view, it looks lot like a nondescript big cat. The sketch below that is of a dead individual between two stick-figure humans, one holding its head up and holding a gun in the other hand, and the other human holding up its tail. A rough black-and-white pencil sketch on lined paper, showing a Kerguelen panther mid-leap and latched onto the neck of a larger, dragon-like Thyreophoran, which is rearing up in furious shock.
October 29, 2025 at 10:52 PM
dynamoterror.bsky.social
Quick sketch (will likely add to it later) of the Toronto Subway Deer, formerly Torontoceros hypogaeus. A new paper has analyzed dna from the only known specimen (fragment of skull + antlers), and it’s a member of Odocoileus! Likely the closest relative of Mule Deer. #pleistocene #canada #sciart
Very rough black-and-white pencil sketch on a piece of paper, depicting the Toronto Subway Deer as a Mule-deer-like member of Odocoileus. It’s staring directly at the viewer, with a relatively thick neck and wide-spanning antlers. The outline of the actual specimen (a skull cap with broken antlers attached) is visible within the life reconstruction. The same sketch as in the other image, this time digitally placed over a photo of the specimen and next to a black human silhouette + a two-meter-tall scale bar.
October 29, 2025 at 3:15 PM
dynamoterror.bsky.social
Quick sketch of an American Kestrel hovering over a grassland, watching for the movements of a mouse hidden below it. #wildlife #birdart #kestrel
Rough black-and-white pencil sketch of an American Kestrel hovering in front-view, above a dense patch of tall grasses and wildflowers. A small mouse is sitting on the ground below the kestrel, deep amongst the grasses and wildflowers.
October 15, 2025 at 4:15 AM
dynamoterror.bsky.social
Quick colored sketch of the deer Eocoileus gentryorum, bounding through a southeastern Cypress Swamp. It is known from the latest-Miocene and Pliocene of Florida and Tennessee, and is the earliest known deer in the Americas. #paleoart #cenozoic #deer #GrayFossilSite #sciart
Colored-pencil drawing of a prehistoric deer leaping in front of a simple green-and-brown background of Bald-Cypress trees. The deer is a darker shade of brown than the trees, and its antlers are small and have three prongs. Its tail is raised up, just as white-tailed deer do while fleeing.
October 12, 2025 at 8:18 PM
dynamoterror.bsky.social
Another concept-sketch for my personal spec-evo project: a small mammal, after weeks drifting at sea, looks up at its strange new neighbor on the shore of the Kerguelen landmass. At some point in the Paleocene, I’m planning on an endemic radiation of Xenarthrans taking hold. #specevo #xenarthra
A rough black-and-white pencil sketch of a small, rat-like Xenarthran mammal sitting and looking up at a very tall, early Penguin. They are on a relatively flat coast with a few low-lying plants around them.
October 9, 2025 at 12:21 AM
dynamoterror.bsky.social
Quick drawing of a speculative, but plausibly real, bird. New-World Warblers in the family Parulidae readily hybridize, and this is what I imagine a cross between a Magnolia Warbler and a Northern Parula might look like. #bird #warblers #wildlife
A colored-pencil sketch of a speculative hybrid warbler (cross between a Magnolia Warbler and a Northern Parula) standing in side view, mouth open as if singing. The top of its head, its wings and its tail are blueish gray, while its throat and belly are yellow that fades to white at the tail. A black mask covers the side of its head, and a black neck ring with black streaks marks its chest.
October 2, 2025 at 2:35 PM
dynamoterror.bsky.social
Adding a photo to this post: a weathered collection of osteoderms and bones from what was likely a juvenile Armadillo, probably left over from a pile of now-gone coyote poop. Something I found recently in the woods.
A photograph of a scattered pile of tiny, nearly rectangular, white osteoderms laying on the sandy ground amongst some pebbles and small leaves. Most are laying individually, though some are connected in groups of two or three or four. They are from a small armadillo, likely the last remnants of a piece of coyote poop.
October 1, 2025 at 1:17 AM
dynamoterror.bsky.social
Just barely making it for September’s #NearbyNature2025, here’s the Mexican Long-nosed Armadillo. Formerly known as a northern subspecies of the recently-split Nine-banded Armadillo, this is the only Xenarthran native to Alabama today. They are mostly nocturnal insectivores. #wildlife #alabama
Colored-pencil sketch of a Mexican Long-nosed (formerly Nine-banded) Armadillo on a white background, walking away at an angle from the viewer
September 30, 2025 at 11:01 PM
dynamoterror.bsky.social
What appears to be the og post:
A screenshot of the earliest Facebook post I could find that shows the photo posted above, with a big black cat standing in a ditch.
September 26, 2025 at 4:14 AM
dynamoterror.bsky.social
So, this photo has been making the rounds lately. There’s many posts claiming it’s from many places, but the earliest I can find puts it in Big Creek, Mississippi. It’s not AI, and almost certainly a Leopard, so someone’s either good at photoshop or lost a pet. Additional info appreciated. #wildlife
A picture of what appears to be a large, black felid standing in a densely vegetated, water-filled ditch just off a road, photographed through the open window of a truck. If it’s not a hoax, it might be a loose black leopard in Mississippi.
September 26, 2025 at 4:14 AM
dynamoterror.bsky.social
Quick sketch of the face of Palaeoloxodon antiquus, a close cousin of living African Elephants that roamed across nearly all of Europe and parts of Asia during the Pleistocene. If not for human activity, it likely would have survived in much of its range to the modern day. #pleistocene #elephant
Black-and-white pencil drawing of the face of the extinct elephant Palaeoloxodon antiquus, with its large ears spread out and its wrinkled trunk hanging down between the splayed tusks.
September 25, 2025 at 8:29 PM
dynamoterror.bsky.social
A showcase of the oak savannas of Minnesota during the early Holocene, with emphasis on the herps. I drew this within four days to give to Ed and Emily of Snake Discovery, when they came down to the Atlanta reptile-expo in August. #holocene #paleoart #sciart #reptiles #amphibians #snakediscovery
A colored-pencil illustration of an oak savanna scene, taking place during the day in southeastern Minnesota during the early Holocene. A sandy well-worn path cuts across the piece from the foreground in the lower right corner to the background on the left side, curving around a bison-wallowing-pit dug into the sandy soil. Two large oak trees line the edge of the path, with many more scattered on the hill in the background. On that hill are two bison fighting and an elk observing them, while in the midground a mastodon skeleton lies scattered at the base of a tree. In the foreground, the details of small flowers and grasses are visible along with many snakes, a toad, a nesting turtle, a skink, and a bobcat. A black-and-white version of the same Holocene-oak-savanna piece, but with a number in a small white circle next to each animal. Number one is the Elk/Wapiti just behind the hill, number two is a Timber Rattlesnake halfway in the bison-wallowing-pit, number three is the plains hognose on the edge of the same pit in the foreground, number four is an Eastern Meadowlark perched on the tip of a mastodon tusk, number five is a Bullsnake slithering through the same Mastodon skeleton and looking up at the meadowlark, number six is the American Mastodon skeleton itself, number seven is an American Toad very close in the foreground and staring straight at the viewer, number eight is a Western Fox Snake, number nine is the Bobcat approaching that fox snake, number ten is the pair of American Bison butting heads on top of the hill, number eleven is a Painted Turtle digging a nest at the base of the closest oak tree, and number twelve is a Prairie Skink climbing up the trunk of that same oak.
September 24, 2025 at 1:51 AM
dynamoterror.bsky.social
Alderblattina simmsi riding a Baeria gracilis leaf through the air, cowboy style, in Toarcian Europe. A quick doodle of a fun concept, heavily based on beautiful illustrated diagrams made by @palaeojules.bsky.social. #paleoart #inverts #sciart #jurassic
Colored pencil drawing of a tiny cockroach from the Jurassic, Alderblattina simmsi, holding on to the center of a Baeria gracilis leaf (a cousin of Ginkgos) as it falls through the air. The leaf is yellow, fading to yellowish-green at the tips of its lobes. The roach is overall brown with two dark dots on each forewing. All of its wings are slightly extended.
September 22, 2025 at 10:38 PM
dynamoterror.bsky.social
Linework mostly done…
Black-and-white pencil sketch of a tiny cockroach riding a falling leaf from a relative of ginkgo trees. The leaf has six narrow lobes, some of which are split into two. The roach has its wings partially flexed out and its legs are holding on to various edges of the base of the leaf.
September 22, 2025 at 3:38 PM