Pterosaurs / Istiodactylus
Istiodactylus

Istiodactylus

Art: Julio Lacerda

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Istiodactylidae

Istiodactylus

/is-tee-oh-DAK-til-us/

The original istiodactylid, this large pterosaur might have been an overland scavenger like a vulture.

Pterosaur data

Age
Barremian
129.4–125 Ma
Wingspan
4.3 m
/ 12 m
Fossil record
good
Well-preserved fossils
Diet
carnivore
Environment
Wessex Formation

Mesozoic era · 252–66 Ma

Barremian
Triassic
Jurassic
Cretaceous
252 Ma 201 145 66 Ma

Wingspan

Istiodactylus wingspan comparison
4.3 m (14.1 ft)

About this pterosaur

The other big pterosaur of Early Cretaceous England, Istiodactylus lent its name to an entire family of broad-headed and heavily-built flying reptiles. Its broad snout was once thought to be a duck-like fisherman but scientists now think it lived more like a vulture.

Istiodactylus had a set of large, slicing teeth at the front of its heavy jaws, possibly used to eat bones and other carrion. This allowed for some niche differentiation between Istiodactylus and its contemporary Caulkicephalus and allowed for lesser competition between the two animals. 

Istiodactylus was described in 1887 as a species of the now invalid genus Ornithodesmus cluniculus. Ornithodesmus was once a large and very old wastebasket taxon used to encompass a variety of Cretaceous European pterosaurs. In 1913, these remains were redescribed by Waalter Reginald Hooley under the name of Ornithodesmus latidens. 

This large wastebasket genus was split apart later by succeeding workers. The animal was renamed Istiodactylus in 2001 by David Martill, Andrew Milner and Stafford Howse. Another species, I. sinensis, was described a few years later from China. The second species is much smaller than the first one.

Across the network

Credits

Julio Lacerda
Julio Lacerda

Both illustrator and graphic designer, Julio Lacerda got into paleoart at the age of 17. Wishing to bridge the creativity of reconstructing prehistoric animals and the essence of wildlife documentaries, he seeks to represent dinosaurs and other prehistoric animals as complex and realistic living beings in both appearance and behavior, being protagonists of casual scenes. His work has been published and shown at several countries like Japan (Pterosaurs exhibition, Fukui Prefectural Dinosaur Museum), United Kingdom (All Your Yesterdays by Irregular Books), USA (official publication of Siats meekerorum, North Carolina Museum of Natural Sciences) as well as his home country, Brazil.

Illustrator
Vasi Devi
Vasi Devi
Author
Nick Garland
Nick Garland
Exhibit designer
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