Trend Results : Cretaceous

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South Valley Park

A hogback of Cretaceous sandstone forms the eastern edge of the Colorado Front Range, rising sharply from the Piedmont. Just west of this hogback is the Morrison Valley, underlaid with Jurassic shale; at its western edge is the Lyons Formation (Permian in age), a yellow-gray ridge of sandstone. Show More Summary

Cretaceous “Big Mouths”

Cretaceous Fish with Gigantic Mouths The oceans of the Cretaceous had some very strange inhabitants, sadly the fossil record only hints at the remarkable diversity of vertebrates, particularly fish.  That’s why when scientists announce the discovery of not one but two new species of Cretaceous plankton-feeding fish, such stories tend to make extensive ripples in […]

Dakotaraptor is a Chimera: Part of Maastrichtian Cretaceous Dromaeosaurid is a Piece of a Turtle

The furculae of the dromaeosaurid dinosaur Dakotaraptor steini are trionychid turtle entoplastraAuthors:Arbour et alAbstract:Dakotaraptor steini is a recently described dromaeosaurid dinosaur from the Upper Cretaceous (Maastrichtian) Hell Creek Formation of South Dakota. Show More Summary

Fossil discovery: Extraordinary 'big-mouthed' fish from Cretaceous Period

CHICAGO -- An international team of scientists have discovered two new plankton-eating fossil fish species of the genus called Rhinconichthys (Rink-O-nik-thees) from the oceans of the Cretaceous Period, about 92 million years ago, when dinosaurs roamed the planet. read more

Fossil discovery: Extraordinary 'big-mouthed' fish from Cretaceous Period

Two new plankton-eating fossil fish species of the genus called Rhinconichthys have been discovered from the oceans of the Cretaceous Period, about 92 million years ago, when dinosaurs roamed the planet.

Duck-Billed Dinosaurs – Sweet Home Alabama!

Alabama Fossil Sheds Light on the Origins of Duck-Billed Dinosaurs The Duck-Billed dinosaurs, or to be more precise, the Hadrosauroidea were a super-family of plant-eating, bird-hipped dinosaurs that dominated Late Cretaceous ecosystems throughout most of the northern latitudes. Show More Summary

Nanotyrannus May Have Been Scarier Than T. Rex, And Here's Why

2 weeks agoNews : Huffington Post

If Tyrannosaurus rex was the lion of the Cretaceous dinosaur world, then the Nanotyrannus would have been the cheetah. That's according to Scott Persons, a graduate student in paleontology at the University of Alberta in Canada. He led...Show More Summary

Here's The Real Story Of Whether You Could Outrun T. Rex

2 weeks agoNews : Huffington Post

Let's say you travel back in time to the Cretaceous Period and find yourself face to face with a hungry tyrannosaur. Can you outrun the beast? If you believe the headline atop an article describing new research on a set of dinosaur footprints in present-day Wyoming, maybe so. Show More Summary

Dino courtship in the Cretaceous: Researcher Martin Lockley at the University of Colorado

3 weeks agoArts : Artdaily

Dinosaurs engaged in showy displays to attract mates 100 million years ago by clawing huge troughs in the ground with their feet, according to a study released Thursday. Scientists have long speculated that theropods -- which included mega-carnivores like T. Show More Summary

Turns Out Dinosaurs May Have Been Very Sexy Dancers

4 weeks agoHumor / odd : Geekosystem

In a paper published earlier this month in Scientific Reports, geologist Martin Lockley and his team claim that scrape marks found in the 100-million-year-old Cretaceous rock unit Dakota Sandstone are the first physical evidence of 'dinosaur foreplay' to be discovered.

Giant Cretaceous Marine Crocodile from Tunisia

Prehistoric Crocodile – Machimosaurus rex A team of international scientists including researchers from the University of Bologna (Italy), the University of Alberta (Canada) and the Office National Des Mines, Service Patrimoine Géologique...Show More Summary

Feitianius paradisi: a new Ornithothoracid Enantiornithine Bird With Elaborate Tail Ornamentation From Aptian Cretaceous China

A new Early Cretaceous enantiornithine (Aves, Ornithothoraces) from northwestern China with elaborate tail ornamentationAuthors:O'Connor et alAbstract:We provide a detailed description of a well-preserved enantiornithine specimen (GSGM-05-CM-004)...Show More Summary

Yubaartar zhongyuanensis: a Large multituberculate mammal From Late Cretaceous China

Largest known Mesozoic multituberculate from Eurasia and implications for multituberculate evolution and biologyAuthors:Xu et alAbstract:A new multituberculate, Yubaartar zhongyuanensis gen. and sp. nov., is reported from the Upper Cretaceous of Luanchuan County, Henan Province, China. Show More Summary

The Neomiodontids: Brackish-Water Bivalves of the Mesozoic

Cast from internal mould of Myrene tetoriensis, from here. During the early part of the Cretaceous, an area corresponding to the modern Sea of Japan was occupied by a massive brackish-water lake that has been called Lake Tetori, after the geological Tetori Formation that it left behind it. Show More Summary

Kosmoceratops was NOT Present in Campanian Cretaceous Alberta & Saskatchewan

A Re-Evaluation of the Chasmosaurine Ceratopsid Genus Chasmosaurus (Dinosauria: Ornithischia) from the Upper Cretaceous (Campanian) Dinosaur Park Formation of Western CanadaAuthors:Campbell et alAbstract:BackgroundThe chasmosaurine ceratopsid...Show More Summary

A Possible Ceratopsian Found in Cenomanian Cretaceous Utah

A possible juvenile ceratopsoid ilium from the Cenomanian of central Utah, U.S.A.Authors:Carpenter et alAbstract:We describe a small ilium, with fibrous texture characteristic of juvenile bone, from the lower Cenomanian of central Utah, U.S.A. Show More Summary

Ischioceratops zhuchengensis: a new Leptoceratopsid Ceraptopsian From Upper Cretaceous China

A New Leptoceratopsid (Ornithischia, Ceratopsia) with a Unique Ischium from the Upper Cretaceous of Shandong Province, ChinaAuthors:He et alAbstract:The partial skeleton of a leptoceratopsid dinosaur, Ischioceratops zhuchengensis gen. Show More Summary

Paleo Awesomeness: Physical Trace Fossil Evidence of Nonavian Theropod Display Arenas for Breeding From Cretaceous Colorado

Theropod courtship: large scale physical evidence of display arenas and avian-like scrape ceremony behaviour by Cretaceous dinosaursAuthors:Lockley et alAbstract:Relationships between non-avian theropod dinosaurs and extant and fossil birds are a major focus of current paleobiological research. Show More Summary

Liaoningopterus gui: a new Toothed Pterosaur From Aptian Cretaceous China

A new toothed pteranodontoid (Pterosauria, Pterodactyloidea) from the Jiufotang Formation (Lower Cretaceous, Aptian) of China and comments on Liaoningopterus gui Wang and Zhou, 2003Authors:Rodrigues et alAbstract:Pteranodontoids consist of a diverse and cosmopolitan clade of Cretaceous pterodactyloid pterosaurs. Show More Summary

Very Diverse Dinosaur Trackway has Ornithopod and Pterosaur Traces Amongst Lots of Theropod and Sauropods Tracks

A diverse saurischian (theropod–sauropod) dominated footprint assemblage from the Lower Cretaceous Jiaguan Formation in the Sichuan Basin, southwestern China: A new ornithischian ichnotaxon, pterosaur tracks and an unusual sauropod walking...Show More Summary

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