joakinmar

[joakinmar]

Rival Torvosaurus engage in a threat display in an attempt to intimidate eachother as light rain falls; a storm is coming.

#paleoart #dinosaur #dinosaurs #theropod #torvosaurus #jurassic

[joakinmar]

It's time for Fossil Friday! Meet Cryptocleidus oxoniensis, a short-necked plesiosaur. Plesiosaurs were large marine reptiles that lived from the late Triassic to the end of the Cretaceous. The plesiosaurs had extensive modifications to the shoulder and pelvic girdles: these elements form large, flat sheets of bone, presumably for the attachment of swimming muscles. Cryptocleidus' trunk was very rigid and short, and the short tail could only function as a rudder, leaving the limbs as its main organ of propulsion.

Photos: © AMNH

Image 1: Cryptocleidus on display in the Museum.

Image 2: Photographic negative of the fossilized remains of Cryptocleidus, circa 1910.

#paleontology #plesiosaur #cretaceous #triassic #science #amnh #museum #fossil #nature #natural history #animals #ancient animals

[joakinmar]

African Dinosaurs Hawaiian shirt

The pattern in this shirt features some of the most well-known dinosaurs from the African continent: Spinosaurus, Kentrosaurus, Ouranosaurus, Rugops and Carcharodontosaurus.

252mya.com/african

Art by Emily Higgs

#paleoart #paleontology #fossil #fossils #evolution #evolutionarybiology #naturalhistory #illustration #graphicdesign #dinosaur #dinosaurs #theropod #cretaceous #spinosaurus #kentrosaurus #ouranosaurus #rugops #carcharodontosaurus

[joakinmar]

Paul Wenzel

#paleoart #vintage art #science fiction #Paul Wenzel

[joakinmar]

'Flora of the Coal Measures restored', from Geological Facts; or, the Crust of the Earth, what it is, and what are its uses by the Rev. W. G. Barrett, 1855

https://www.gutenberg.org/cache/epub/72100/pg72100-images.html

#paleoart #paleontology #Carboniferous #1855 #geological facts #w g barrett

[joakinmar]

Pencil portrait_Liopleurodon.

Pencils, 2022.

References: Dan Folkes.

#paleoart #sauropterygian #pliosaur #liopleurodon #extinct animals #pencils

[joakinmar]

Sclerocephalus

#paleontology #fossil #prehistoric amphibian #fossils

[joakinmar]

#paleoart #paleontology #marine reptile #plesiosaur

[joakinmar]

Parasaurolophus is terrible at keeping plants!

Art by me.

#paleoart #parasaurolophus #hadrosaur #ornithopod #dinosaur #cretaceous

[joakinmar]

My 25 years of palaeoart chronology...

I illustrated several books in 2004 (via the Beehive Illustration Agency). One of them was PLANET DINOSAUR, by Steve Parker and Miles Kelly Publishing. I will post the five main paintings (acrylic on card) throughout today. Last is the Late Cretaceous.

#paleoart #paleontology #Dinosaurs #cretaceous #Painting #Art #SciComm #SciArt #Illustration

[joakinmar]

Ichthyotitan, the newly named and potentially largest marine reptile ever, witnesses two smaller ichthyosaurs surfing the underwater wave created by its massive body.

#paleontology #paleoart #triassic #ichthyosaur #prehistoric #digital art #art

[joakinmar]

Cephalaspis, Coccosteus, Pterichthys and Osteolepis, Palaeozoic fishes from Geological Facts; or, the Crust of the Earth, what it is, and what are its uses by the Rev. W. G. Barrett, 1855

https://www.gutenberg.org/cache/epub/72100/pg72100-images.html

#paleontology #paleoart #cephalaspis #coccosteus #pterichthys #Osteolepis #prehistoric fish #1855 #Geological Facts

[joakinmar]

My 25 years of palaeoart chronology...

I illustrated several books in 2004 (via the Beehive Illustration Agency). One of them was PLANET DINOSAUR, by Steve Parker and Miles Kelly Publishing. I will post the five main paintings (acrylic on card) throughout today. Third is the Late Jurassic.

#Paleontology #PaleoArt #Dinosaurs #jurassic #sauropod #theropod #diplodocus #allosaurus #Painting #Art #SciComm #DigitalArt #Illustration

[joakinmar]

My 25 years of palaeoart chronology...

In 2004 I played with a book idea but never took it to a publisher. I did 100 draft drawings for the proposal (never completed), I'll post a few throughout today. Fourth is Sarcosuchus.

#PaleoArt #Paleontology #Dinosaurs #Reptiles #sarchosuchus #crocodile #ouranosaurus #Painting #Art #SciComm #DigitalArt #Illustration

[joakinmar]

Patreon request for @/rome.and.stuff (Instagram) - Asilisaurus kongwe

Asilisaurus kongwe means “Ancient Ancestor.” As one of the first silesaurs, Asilisaurus is one of the oldest-known Avemetatarsalians (the clade which includes dinosaurs, silesaurs, and pterosaurs.) Found in the Manda Formation of Tanzania, it lived during the earliest portion of the Late Triassic. It appears to have been very common (or at least very prone to fossilization) as it is known from a relatively large amount of fossils.

Based on the length of its limbs, Asilisaurus was likely quadrupedal, but probably could have also reared up on its hind legs. It had no teeth in the tip of its snout, indicating the presence of a small beak, and also had fewer teeth than other silesaurs. Because of this, it is hypothesized that Asilisaurus was an omnivore or even a herbivore. The peglike shape of its teeth may have also lended to piscivory. As silesaurs seemed to have diets which were just as varied as dinosaurs (the Argentinian Lewisuchus was a specialized carnivore, the North American Kwanasaurus was an obligate herbivore, and the Polish Silesaurus was an insectivore and herbivore), Asilisaurus’ diet can’t be based on phylogenetic bracketing.

There seem to be two different adult morphologies of Asilisaurus: a “slender” form and a “robust” form. While traditionally regarded as a sign of sexual dimorphism, newer studies show that this could have simply been individual variation and a difference of growth in plentiful vs depleted environments (ie epigenetics), similar to differences seen in Plateosaurus and the modern Alligator.

In the Early Carnian of Tanzania, Asilisaurus kongwe would have lived alongside a variety of pseudosuchians such as Nundasuchus and Mambawakale, as well as the possible early dinosaur, Nyasasaurus. The environment was rich in synapsids as well, including dicynodonts like Angonisaurus, Kannemeyeria, and Tetragonias, and cynodonts like Cynognathus and Diademodon. Asilisaurus would have been preyed on by the aphanosaur Teleocrater and possibly some of the larger, carnivorous cynodonts, which is why I have given it spots for camouflage!

#paleoart #paleontology #silesaurs #silesaurids #Asilisaurus #archosaurs #archosauromorphs #reptiles #Manda Formation #Tanzania #Middle Triassic #Late Triassic

[joakinmar]

A baby argentinosaurus scans the forest floor for danger. One day if she’s lucky she’ll grow so large no predator on earth will be able to touch her.

#paleontology #paleoart #titanosaurs #dinosaur #sauropod #argentinosaurus #dinosaur art #Illustration #cretaceous #prehistoric #fern #scales #rain #stripes #green #paleoillustration

[joakinmar]

An Austroraptor seizes a fish from a rival.

#paleontology #paleoart #feathered dinosaurs #dromaeosaur #austroraptor #dinosaurs #biology #art