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Anhanguera |
Anhanguera ("Old devil")
is a genus of pterodactyloid pterosaur known from the Lower-Cretaceous
(Aptian) Santana Formation of Brazil. The discovery of this pterosaur
helped to end some of the debates about whether pterosaurs walked
on two legs or four. Anhanguera was a fish-eating creature
with a wingspan of 4-5 m (13-17 ft). It had a small, round crest
on the front of its upper jaw. The creature is named after the
Brazilian town of Anhanguera.
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Cearadactylus |
Cearadactylus ("Ceara finger")
was a large, mid-Cretaceous (Aptian) pterosaur. Its wingspan is
estimated to have been around 4 metres (13 ft)[1], with a weight
of perhaps 15 kilograms (33 lb). Its kinked upper jaw and its
interlocking teeth suggest a piscivourous diet, allowing the animal
to keep hold of slippery fish.
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Dsungaripterus weii |
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Dsungaripterus
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Dsungaripterus ("Wing of Junggar
Basin") was a genus of pterosaur with an average wingspan
of 3 metres (10 feet). It lived during the Early Cretaceous, ranging
from China, where the first fossils were found in the Junngar
Basin, to Africa, where more remains have been found. Its most
notable feature is its long, narrow, upcurved jaws with a pointed
tip, making the animal look like a pair of flying tweezers. It
had no teeth in the front part of its jaws, which were probably
used to remove shellfish and worms from cracks in rocks or/and
the sandy, muddy beaches it inhabited. It had knobbly molar-like
knobs on the back of the jaw were well suited for crushing the
armor of shellfish.
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Nyctosaurus
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Nyctosaurus is a genus of pterodactyloid
pterosaur notable for its extraordinarily large cranial crest,
otherwise known only in the distantly related tapejarids. Its
remains have been found primarily in the mid-western United States,
which during the late Cretaceous Period was covered in an extensive
shallow sea. Nyctosaurus is the only pterosaur to have
lost its clawed "fingers", with the exception of the
wing finger, which is likely to have impaired its movement on
the ground, leading scientists to conjecture that it spent almost
all of its time on the wing and rarely landed. In particular the
lack of claws with which to grip surfaces would have made climbing,
or clinging to cliffs or treetrunks, impossible for Nyctosaurus.
Nyctosaurus appears to have outlasted its relative Pteranodon
and may have survived until the great extinction 65 million years
ago.
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Pterodaustro ("Southern wing")
was a Cretaceous pterosaur from South America, living 140 million
years ago. Pterodaustro had a wingspan of 133 centimetres
(4.36 ft). It had about a thousand bristle-like structures on
its jaw that might have been used to strain crustaceans, plankton,
algae, and other small creatures from the water. It probably either
waded in shallow water like flamingos, straining food, or possibly
skimmed over the water while flying, using its beak like a basket.
Once it caught its food, Pterodaustro probably mashed
it with the small globular teeth in its upper jaw. Like flamingos,
this pterosaur's diet may have resulted in a pink hue. Thus, it
is often dubbed the "flamingo pterosaur".
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Quetzalcoatlus
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Quetzalcoatlus (named for the Aztec
feathered serpent god Quetzalcoatl) was a pterodactyloid pterosaur
known from the Late Cretaceous of North America (Campanian–Maastrichtian
stages, 75–65 ma), and one of the largest known flying animals
of all time. It was a member of the Azhdarchidae, a family of
advanced toothless pterosaurs with unusually long, stiffened necks.
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Ornithocheirus
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Ornithocheirus was a huge pterosaur
from the early Cretaceous period of Europe and South America.
Along with Quetzalcoatlus, several large bone fragments
from the Santana Formation of Brazil indicate that Ornithocheirus
may have been one of the largest pterosaurs that ever lived, with
a wingspan reaching almost 12 m (40 ft). If these poorly preserved
remains do indeed belong to Ornithocheirus, it would
have been approximately 3.50 m (11.5 ft) long (1.50 m (5 ft) of
which belonged to the head) and stood approximately 3 m (10 ft)
tall when on the ground on all fours. Despite this, the creature
would may only have weighed as much as a grown man (70 kg), thanks
to hollow bones filled with air sacks. Ornithocheirus
was the earliest giant pterosaur, living 125 million years ago.
Most other large-sized genera appeared around 90 million years
ago.
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Pteranodon ingens
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Pteranodon sternbergi |
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Pteranodon longiceps
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Pteranodon from the Late Cretaceous
(Coniacian-Campanian, 89.3-70.6 million years ago) of North America
(Kansas, Alabama, Nebraska, Wyoming, and South Dakota), was one
of the largest pterosaur genera, with a wingspan of up to 9 metres
(30 ft). Pteranodon's wing shape suggests that it would
have flown rather like a modern-day albatross.
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Tapejara imperator
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Tapejara wellnhoferi |
Tapejara is a genus of Brazilian pterosaur
from the Cretaceous Period with a wingspan of up to 6 metres.
Both species bore a differently sized/shaped crest that may have
been used to signal and display for other Tapejara, much
as toucans use their bright bills to signal to one another. T.
wellnhoferi is the smallest species assigned to Tapejara
while T. imperator has a larger crest supported by a
backwards prong.
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Tupuxuara
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Tupuxuara is a genus of large, crested,
toothless pterosaur with an appearance similar to Pteranodon,
mature individuals having a swept back crest arising from the
snout, but its crest was larger and more pronounced than that
of Pteranodon. Females of the species also had large
crests, but their crests were more round. It is likely that Tupuxuara
was a fish eater, and lived near the coasts of South America.
The skull of the Tupuxuara measured a length of 900mm,
the length of the entire body was 2.5 meters, and had a wingspan
of 5.4 meters.
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