#limusaurus

[bobnichollsart]

My 25 years of palaeoart chronology…

Isotope studies show that juvenile Limusaurus were meat-eaters but adults were plant-eaters. This is from DINOSAUR BEHAVIOUR (2023), by Prof Michael Benton (published by Princeton University Press).

[makairodonx]

Two Limusaurus looking for ferns to eat and a Guanlong chasing a large, beetle-like insect both scamper past the massive, pillar-like legs of a Mamenchisaurus sinocanadorum browsing on the leaves of a conifer 160 million years ago in what will one day be the Shishugou Formation of northwestern China.

A male Stegosaurus stenops leaves the edge of a water-hole to reunite with his thirsty mate and offspring after they’ve both endured a long trek across the sand dunes to reach it, 155 million years ago in what is now the Morrison Formation of Colorado.

[ildarotyrannus]

Reconstruction of the noasaurid Kiyacursor longipes from the Early Cretaceous of the Kemerovo Region (Russia). The partial skeleton of this dinosaur was found in 2023 at the Shestakovo 1 locality. It consists of the left scapulocoracoid, humeri, cervical and trunk vertebrae and ribs, and most of the articulated hind limbs. In addition, a partial cervical vertebra was attributed to Kiyacursor. The holotype could have reached 2.5 meters in length, but histology of the leg bones showed that it was not fully grown. The hind legs are long, with a very narrow metatarsus, which indicates the ability to run quickly. Unlike other cursorial theropods, Kiyacursor has a highly developed third (middle) metatarsal and reduced second and fourth. The humeri are very small. Due to the lack of a skull, it is difficult to judge the diet of the animal. Kiyacursor is part of a fauna characterized by the presence of relics from the Jurassic period.

Paint Tool Sai 2.0, 2025.

[new-dinosaurs]

Kiyacursor longipes Averianov et al., 2024 (new genus and species)

(Type specimen of Kiyacursor longipes, from Averianov et al., 2024)

Meaning of name: Kiyacursor = Kiya River runner [in Latin]; longipes = long foot [in Latin]

Age: Early Cretaceous (Aptian)

Where found: Ilek Formation, Kemerovo Oblast, Russia

How much is known: Partial skeleton of one individual including several vertebrae and limb bones. A partial neck vertebra found at the same site may belong to the same individual.

Notes: Kiyacursor was a ceratosaurian theropod. It resembles the Late Jurassic ceratosaurs Elaphrosaurus of Tanzania and Limusaurus of China in having relatively elongate lower legs and feet, suggesting that it was well adapted for fast running. The type specimen of Kiyacursor is estimated to have been 2.5 m long in total body length, but it probably had not finished growing when it died.

Although ceratosaurs are known from the Late Cretaceous of Europe and especially the Southern Hemisphere, Kiyacursor is the youngest known ceratosaur from Asia. In addition to Kiyacursor, the Ilek Formation has produced fossils of various other animals that are more characteristic of Jurassic ecosystems, including certain types of proto-salamanders, proto-crocodylians, and proto-mammals. This may indicate that what is now Western Siberia acted as a "lost world" for some Jurassic animal groups during the Early Cretaceous.

(Select bones and schematic skeletal of Kiyacursor longipes [scale bar refers only to the skeletal and not to the photographs of bones], from Averianov et al., 2024)

Reference: Averianov, A.O., P.P. Skutschas, A.A. Atuchin, D.A. Slobodin, O.A. Feofanova, and O.N. Vladimirova. 2024. The last ceratosaur of Asia: a new noasaurid from the Early Cretaceous Great Siberian Refugium. Proceedings of the Royal Society B 291: 20240537. doi: 10.1098/rspb.2024.0537

[a-dinosaur-a-day]

Sigh. Just 20 extinct ones then.

so for 20 extinct I'd go with 7 Ornithischians, 4 Sauropodomorphs, 9 Theropods:

Tianyulong

Chungkingosaurus

Polacanthus

Yinlong

Triceratops horridus (sorry this is the only one I'm specifying I just don't have a specific one in mind for the rest where there are options, which to be fair, is few of them)

Eolambia

Olorotitan

Massospondylus

Brontosaurus (if you go with Tschopp et al 2015)

Sauroposeidon

Patagotitan

Daemonosaurus

Limusaurus

Giganotosaurus

Jaculinykus

Mei

Sapeornis

Lithornis

Kumimanu

Zygodactylus

[zponds]

Skull Island 2005 - Fauna (part 1)

With my preposed idea for season 10 of The Genie Team revolving around the Bermuda Triangle, one of the three main things in that region would be the 2005 Peter Jackson rendition of Skull Island… which is my favorite rendition, especially with how much fauna roamed the island. And this post and the next will go over the fauna of Skull Island.

DINOSAURS + REPTILES + SYNAPSIDS + AMPHIBIANS

Tartarusaurus saevus

Peracerdon exitialis

Limusaur/Limusaurus corrodomolluscus

Dragonskin/Varanus dracopellis

Discus

Aciedactylus mandocaris

Nefundusaurus accerbus

Dirusubcus

Brontosaurus baxteri

Ligocristus innocens

Ferrucutus cerastes

Calcarisaurus ieiuniosus

Formicavoro/Termito'saurus formicavoro

Vastatosaurus rex

Lycaesaurus kirkii

White Wedgehead

Pugbat

Malamagnus

Dirt Turtle/Foeduchelys hospes

Inox/Inoculopalus edax

Udusaurus turpis

Skull Island Snapper

Turturcassis

Skull Island Loggerhead Sea Turtle

Swamp-wing/Xanthopteryx

Falcotops

Furcidactylus

Ambulaquasaurus cristarufus

Scissor-head/Axiciacepkalus curio

Venatosaurus saevidicus

Venatosaurus impavidus

Adlapsuaurus

Foetodon

Avarusaurus populator

Scimitodon sagax

Carver/Carocarptor interfector

Pugiodorsus squameus

Hebeosaurus torvus

Dinocanisaurus

Diablosaurus

Asperdorsus bellator

Tree-tops/Sylvaceratops

Monstrutalpus

Atercurisaurus

Feather Devil

Alatusaurus sanguideia

Aliepesaurus

Alatusaurus cinnabaris

Alatusaurus pergrandis

Alatusaurus scintilla

Novusaurus biscutica

Aerosaurus verdens

Herbivorous chameleons — Chamaeleo cuspis/trident chameleon, Furcifer adipatus/fat chameleon and Chamaeleo mellilingus/honey-tongue chameleon

Vultursaurus

Bear-croc/Ursusuchus bombus

Chaly-tops/Chalyceratops seradorsus

Bifurcatops peritus

Arsartis/Arsarticaedes agilis

Bidensaurus mactabilis

Gladiodon igneospinus

Malevolusaurus perditor

Draco

Fin-headed lizard

BUGS

Skull Island Termites/Truxtermopsis difficilis

Scissor-Beetle

Maggotfly

Meat Weevil

Carrion Centipede

Ornate Carrion Beetle

Nigracassida

Moonspider/Galeodes luna

Estrivermus

Profanus

Contereobestiolla

Nepalacus

Aspiscimex exos

Hydruscimex maximus

Mortifillex venefecus

Scorpio-pede/Nepapede harpagabdominus

Nefacossus fluvius

Predatory Pond Skaters

Mortaspis

Spinaculex

Megapede horridus

Gyas gyas

Megapede dereponecis

Megapede humus

Stickalithus arachne

Wicked Weaver/Impiutextor

Idolon illotus

Idolon venefaucus

Omnimatercimex harpeforceps

Canopy Insects — Megalatus imperius, Savage-Gnat/Efferuculex niger, Shaggywing/Comososptero, Fallow Mantis/Inaratumantis, Guard-bug/Custocimex ferratus and Firebellied Tree-talon/Hylaeohamu

Celocimex horribillis

Noxmuscus furvus

Unguasilus

Decarnocimex

Weta-rex/Deinacrida rex

Arachno-claw/Arachnocidis

Megapede impurus

Lividuvespa alaramus

Pitchbug/Piceuscutum

[paterday]

Limusaurus are one of the most interesting dinosaurs life-style wise, because as babys they are born with sharp, meat eating teeth inside a beak, and as they age the teeth begin to fall out and they transition to eating with a beak. So babies are sharp teethed omnivores and adults are beaked herbivores

[lobo-on-my-podia]

Dinosaurs No One Talks About

Torosaurus: https://en.wikipedia.org/wiki/Torosaurus 

Heterodontosauridae: https://en.wikipedia.org/wiki/Heterod... 

Elliot Formation: https://en.wikipedia.org/wiki/Elliot_... 

Heterodontosaurus: https://en.wikipedia.org/wiki/Heterod... 

Pegomastax: https://en.wikipedia.org/wiki/Pegomastax

Noasauridae: https://en.wikipedia.org/wiki/Noasaur... 

Masiakasaurus: https://en.wikipedia.org/wiki/Masiaka... 

Berthasaura: https://en.wikipedia.org/wiki/Berthas... 

Limusaurus: https://en.wikipedia.org/wiki/Limusaurus 

Deltadromeus: https://en.wikipedia.org/wiki/Deltadr... 

Elaphrosaurus: https://en.wikipedia.org/wiki/Elaphro...

[lycankeyy]

There's this dinosaur that started out omnivorous but as it aged all it's fucking teeth would fall out and it would become an herbivore. By the way. Limusaurus. Not that game devs care /j

My favorite dinosaur isn't even in any video games. What's the fucking point /j

[verybadpaleontologyjokes]

I love finding out about a potential dinosaur-making scam while staying up all night on Twitter.

[ID: A square image in a similar style to weight loss scam ads on the internet. Text in three different sans serif fonts and five colors (black, red, blue, green, and discord periwinkle) is interrupted in the middle with a cropped image of a quail, an arrow, and a distorted recreation of the dinosaur Limusaurus. The text reads: YOU CAN TURN A (blue) QUAIL INTO A (red) LIMUSAURUS (green) IN JUST A FEW MONTHS!!! (periwinkle) LEARN MORE ON OUR DISCORD SERVER! End ID]

Image sources: Mikiko the Quail, by Ingrid Taylar on Flickr Limusaurus illustration by Nobu Tamura Discord logo from Discord

[bobnichollsart]

My 25 years of palaeoart chronology…

The 2022 Korean translation of Locked in Time (by Dr Dean Lomax & published by Columbia University Press) commissioned me to colourise my 50 greyscale illustrations. "In the wake of colossus" shows several Limusaurus trapped in the muddy track left behind by a Mamenchisaurus, which has attracted a predatory Guanlong.

[si-nequal-is]

Momma Limusaurus with her chick.

[paleobird]

"Yeah! It actually talks about an example of that here, albeit inverted in a way." She paused to point at the picture of a pair of feathered, bipedal dinosaurs--the smaller of the two was in the middle of swallowing a lizard, while the larger was grazing from a bush.

"This is Limusaurus, a theropod that, as a juvenile, had a mouth full of teeth, but lost them completely as an adult. It's believed the young ones were omnivores, while the adults were purely herbivorous."

The harpy hummed thoughtfully, thumbing through the book a bit to get back to the hearing section. "Not too much in detail--things like comparisons between the ears of mammals and those of reptiles and birds. Basically, mammals--like whales--have more refined hearing than most other animals, and tend to rely on it more. Dinosaurs were more about smell, but obviously some had really good hearing regardless."

"Oh!! Like our pups do!" There she goes. That gets Miranda to really start to thaw, both fins tilting forward now. This is not to say she understands much of the terms beyond anatomy alone, whose familiarity comes primarily from modern examples, not extinct, but there's a flicker of comparison there. Something enough to get her mind to turning, the wheels of understanding standing precedent over other feelings.

She lifts one of her hands up and out of the way she's had her arms crossed, solely to gesture up at her mouth, drawing a straight line. "When my people are born we have very simple teeth, just cones. But when we grow up and get larger, the jaw muscles develop, and we lose the first set of teeth, and grow another, which is different in shape. So the pups are eating different things than adults, to prevent one from starving the other out."

She flickers her fins, part interest, part making a point of some kind, even as she lets her hand rest down again. "What else does it say about hearing? I think my people have some examples of fossilized ears ourselves, but I think those are from... Whales? Or... I do not know what you call them, unfortunately."

[esmaniottoart]

Doodle_L is for Lazy Limusaurus.

Pencils, 2019.

[goodeggshen]

Wikipedia article of the day for March 12, 2021

The Wikipedia article of the day for March 12, 2021 is Limusaurus. Limusaurus is a genus of theropod dinosaur that lived in what is now China during the Late Jurassic, around 161 to 157 million years ago. The only species, Limusaurus inextricabilis, was described in 2009 from specimens (pictured) found in the Upper Shishugou Formation in the Junggar Basin. Limusaurus was a small, slender animal, about 1.7 m (5 ft 7 in) in length and 15 kg (33 lb) in weight, with a long neck and legs but small forelimbs. It underwent a drastic morphological transformation as it aged: while juveniles were toothed, the teeth were completely lost and replaced by a beak. This probably corresponded to a dietary shift from omnivory to herbivory. Since many specimens were found together, it is possible Limusaurus lived in groups. As referenced in its genus name, which means "mud lizard", specimens of Limusaurus appear to have been mired in mud pits created by the footprints of giant sauropod dinosaurs.

[planetinformation]

The Wikipedia article of the day for March 12, 2021 is Limusaurus. Limusaurus is a genus of theropod dinosaur that lived in what is now China during the Late Jurassic, around 161 to 157 million years ago. The only species, Limusaurus inextricabilis, was described in 2009 from specimens (pictured) found in the Upper Shishugou Formation in the Junggar Basin. Limusaurus was a small, slender animal, about 1.7 m (5 ft 7 in) in length and 15 kg (33 lb) in weight, with a long neck and legs but small forelimbs. It underwent a drastic morphological transformation as it aged: while juveniles were toothed, the teeth were completely lost and replaced by a beak. This probably corresponded to a dietary shift from omnivory to herbivory. Since many specimens were found together, it is possible Limusaurus lived in groups. As referenced in its genus name, which means "mud lizard", specimens of Limusaurus appear to have been mired in mud pits created by the footprints of giant sauropod dinosaurs.