New bird-like dinosaur discovery


This video says about itself:

Synchrotron sheds light on the amphibious lifestyle of a new raptorial dinosaur

6 December 2017

An exceptionally well-preserved dinosaur skeleton from Mongolia unites an unexpected combination of features that defines a new group of semi-aquatic predators related to Velociraptor. Detailed 3D synchrotron analysis allowed an international team of researchers to present the bizarre 75 million-year-old predator, named Halszkaraptor escuilliei, in Nature.

From Nature:

Synchrotron scanning reveals amphibious ecomorphology in a new clade of bird-like dinosaurs

06 December 2017

Abstract

Maniraptora includes birds and their closest relatives among theropod dinosaurs1,2,3,4,5.

During the Cretaceous period, several maniraptoran lineages diverged from the ancestral coelurosaurian bauplan and evolved novel ecomorphologies, including active flight2, gigantism3, cursoriality4 and herbivory5. Propagation X-ray phase-contrast synchrotron microtomography of a well-preserved maniraptoran from Mongolia, still partially embedded in the rock matrix, revealed a mosaic of features, most of them absent among non-avian maniraptorans but shared by reptilian and avian groups with aquatic or semiaquatic ecologies6,7,8,9,10,11,12,13,14. This new theropod, Halszkaraptor escuilliei gen. et sp. nov., is related to other enigmatic Late Cretaceous maniraptorans from Mongolia15,16 in a novel clade at the root of Dromaeosauridae17. This lineage adds an amphibious ecomorphology to those evolved by maniraptorans: it acquired a predatory mode that relied mainly on neck hyperelongation for food procurement, it coupled the obligatory bipedalism of theropods with forelimb proportions that may support a swimming function, and it developed postural adaptations convergent with short-tailed birds.

See also here.

9 thoughts on “New bird-like dinosaur discovery

  1. Pingback: Small dinosaur discovered in Australia | Dear Kitty. Some blog

  2. Pingback: New dinosaur species with ‘hummingbird’ colours | Dear Kitty. Some blog

  3. Pingback: Oldest Archaeopteryx bird, new research | Dear Kitty. Some blog

  4. Pingback: Cretaceous dinosaur, mammal discovery in Maryland, USA | Dear Kitty. Some blog

  5. Pingback: From dinosaur mouth to bird beak, new research | Dear Kitty. Some blog

  6. Pingback: Colourful dinosaur and bird eggs, new study | Dear Kitty. Some blog

  7. Pingback: Megaraptor carnivorous dinosaur, video | Dear Kitty. Some blog

  8. Pingback: New dinosaur species discovery in Brazil | Dear Kitty. Some blog

  9. Pingback: Allosaurs, related dinosaurs, size comparison | Dear Kitty. Some blog

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.