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tentang Ancient,signals,ancient,universe,Big Bang,cosmological phenomenon
,oscillon,sinyal k Giant flying reptile
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flying reptile,tootless,ompong,reptil terbang,reptil terbang raksasa memerintah Transylvania kuno, Azhdarchidae, Hatzegopteryx
reptil terbang raksasa memerintah Transylvania kuno
Tanggal:
10 Februari 2017
Sumber:
University of Portsmouth
Ringkasan:
pterosaurus raksasa - reptil terbang ompong dengan lebar sayap 10 meter
yang - mungkin telah menjadi predator dominan di Rumania kuno, dari
penelitian baru. Makhluk itu memiliki leher lebih pendek dan lebih kuat
dengan otot lebih besar dari species leher anggun panjang lainnya .
.............................
Penelitian baru menunjukkan bahwa pterosaurus raksasa - reptil terbang
ompong dengan lebar sayap 10 meter yang - mungkin telah menjadi predator
dominan di Rumania kuno.
Palaeontolog memeriksa vertebra leher raksasa tidak biasa dan percaya itu
adalah karnivora yang tangguh dan predator utama yang meneror dinosaurus
dan hewan prasejarah lainnya dari era-Cretaceous Transylvania.
Ini memberikan bukti pertama dari hewan predator besar di wilayah pada waktu itu.
Dr Mark Witton, dari University of Portsmouth dan Dr Darren Naish dari
University of Southampton, keduanya di Inggris, memeriksa beberapa
sisa-sisa fosil makhluk, yang dikenal sebagai Hatzegopteryx, yang termasuk
kelompok reptil terbang Azhdarchidae.
label
Giant flying reptile ,reptile,reptil,ancient,kuno,purba
,Transylvania,pterosaurpterosaurus
,Romania,toothless flying reptile,tootless,ompong,reptil terbang,reptil terbang
raksasa memerintah Transylvania kuno, Azhdarchidae, Hatzegopteryx
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Giant flying reptile ruled ancient Transylvania
Date:
February
10, 2017
Source:
University
of Portsmouth
Summary:
A giant pterosaur – a toothless flying reptile with a 10 metre
wingspan – may have been the dominant predator in ancient Romania, suggests new
research. The creature has a considerably shorter and stronger neck with larger
muscles than the long graceful necks of others in its species.
.............................
New research suggests that a giant
pterosaur -- a toothless flying reptile with a 10 metre wingspan -- may have
been the dominant predator in ancient Romania.
Palaeontologists examined the creature's
unusual gigantic neck vertebra and believe it was a formidable carnivore and
major predator that terrorised dinosaurs and other prehistoric animals of
Cretaceous-age Transylvania. It provides the first evidence of large predatory
animals in the region at that time.
Dr Mark Witton, from the University of
Portsmouth and Dr Darren Naish from University of Southampton, both in the UK,
examined several fossilised remains of the creature, known as Hatzegopteryx,
which belongs to the flying reptile group Azhdarchidae.
Usually this species' tubular neck bones
give them extremely long necks, over 2.5 metres in length in the largest
species. However, the researchers suggest Hatzegopteryx had a considerably
shorter and stronger neck, and with larger muscle masses. Other remains of
Hatzegopteryx include a jaw joint indicative of a half-metre wide skull and
reinforced limb bones. Dr Witton suggests that the proportions and structural
reinforcement of all these elements are unlike those of any other azhdarchid
species and would have made Hatzegopteryx a powerful and dominant predator.
He said: "The difference in
structural properties between giant azhdarchid neck bones is remarkable --
they're in different biomechanical leagues, with Hatzegopteryx many times
stronger than anything else on record. This, along with our calculations of
neck length and muscle mass, suggests giant azhdarchids may have been radically
different in appearance and behaviour.
"The large, reinforced skeleton and
muscle power would have made it a formidable predator of other animals when
stalking ancient prairies and woodlands. It may have even been capable of
attacking animals too large or vigorous for other flying reptiles, even the
other giants."
Dr Witton said that Hatzegopteryx lived
in a peculiar island ecosystem where many of the dinosaurs were dwarfed or
belonged to relict lineages extinct in the rest of the Cretaceous world.
"Ancient Transylvania was a strange place for a number of reasons,
including the fact that we've yet to find evidence of large predatory animals
that lived alongside Hatzegopteryx, such as giant carnivorous dinosaurs. This
is despite centuries of sampling."
The study thus potentially provides an
answer to a mystery about life in Late Cretaceous Romania.
"Perhaps without large predators to
challenge them, this island provided an opportunity for giant pterosaurs --
already formidable animals -- to become the dominant predators," said Dr
Witton.
"The finer details of ecology and
lifestyle for Hatzegopteryx remain unknown because we're still working from
scraps of its skeleton, but the emerging picture of its lifestyle are
fascinating. In some respects our unexpected findings highlight how little we
actually know about these animals. We've had these scrappy remains for years,
but we need to ask the right questions, and perform the right tests, to realise
their significance. Future giant pterosaur research and discoveries almost
certainly have many more surprises for us."
The research was published in PeerJ.
Story Source:
Journal Reference:
1. Darren Naish, Mark P. Witton. Neck
biomechanics indicate that giant Transylvanian azhdarchid pterosaurs were
short-necked arch predators. PeerJ, 2017; 5: e2908 DOI:10.7717/peerj.2908