Trend Results : Cretaceous


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Sodden Six: 1928

San Francisco, 1928. "Hudson Super Six Sedan at Golden Gate Park." Latest entrant in the Shorpy Cavalcade of Cretaceous Conveyances. 5x7 glass negative by Christopher Helin. View full size.

No Apparent Spike of Carbon dioxide Across Cretaceous-Paleogene Boundary

Global trends of pCO2 across the Cretaceous–Paleogene boundary supported by the first Southern Hemisphere stomatal proxy-based pCO2 reconstruction Authors: Steinthorsdottir et al Abstract: Reliable reconstructions of atmospheric carbon...Show More Summary

Beta-keratin discovery in bird feather fossil may help identify paleo colo

A team of international scientists led by researchers from the Chinese Academy of Sciences reported recently the oldest fossil evidence of beta-keratin from feathers of a 130 million-year-old basal bird from the famous Early Cretaceous Jehol Biota.

Triassic chrysophyte cyst fossils discovered in the Ordos Basin, China

Algae with siliceous structures are proposed to have originated following the Permian-Triassic extinction or even earlier, but there have been no robust fossil records to indicate their existence before the Jurassic–Cretaceous Periods. Show More Summary

Prehistoric Bird with “Bling”

Study Suggests Early Cretaceous Bird Had Flashy Feathers Fossils from the Jiufotang Formation of Liaoning Province (China), have provided scientists with an extensive data set that records life in the Early Cretaceous.  The highly fossiliferous...Show More Summary

Researchers uncover details behind dinosaur-era birds' feathers

(Wiley) Scientists have recently discovered a new bohaiornithid bird specimen from the Early Cretaceous Period of China with remarkably preserved feathers. Bohaiornithid birds belonged to enantiornithes, a group of avian dinosaurs that lived millions of years ago.

Apex Predator from Late Cretaceous Antarctica

Largest Mosasaur from Antarctica Described – Kaikaifilu hervei A team of international researchers writing in the journal “Cretaceous Research”, have published details of the largest Mosasaur to be identified from Upper Cretaceous strata in Antarctica. Show More Summary

'Mud Dragon' Dinosaur Died an Awful Death at Tail-End of Cretaceous

This dinosaur’s bad luck turned out to be a boon for paleontologists.

Rapid Recovery of Patagonian Plant-Insect Associations

Research Suggests Southern Hemisphere a Relatively Safe Haven after End Cretaceous Impact Event Life in much of the southern hemisphere seems to have recovered more quickly than ecosystems further north after the catastrophic Yucatan Peninsula impact event that marked the end of the Cretaceous.  Furthermore, the southern parts of our planet may have provided a […]

Quantifying the volcanic emissions which triggered Oceanic Anoxic Event 1a and their effect on ocean acidification

The Cretaceous Oceanic Anoxic Event 1a (Early Aptian) is thought to be causally related to the eruption of the Ontong–Java Plateau large igneous province. This study uses osmium isotope records to quantify the magnitude of the respective CO2 emissions up to the onset of Ocean Anoxic Event 1a, and model the associated changes in carbonate […]

New Species of Long-Necked Dinosaur Uncovered in Australia

2 months agoTechnology / Gadgets : Gizmodo

Introducing Savannasaurus, a gigantic long-neck dinosaur that lived during the Cretaceous period some 100 million years ago. Its discovery sheds new light on sauropod evolution as well as how these impressive beasts managed to conquer the globe. Read more...

How the Cretaceous coastline of North America affects US presidential elections

2 months agoHumor / odd : Kottke.org

That’s a portion of the 2012 US Presidential election map of the southern states broken down by county: blue ones went Barack Obama’s way and counties in red voted for Mitt Romney. But let’s go back to the Cretaceous Period, which lasted from 145 million years ago to 65 million years ago. Show More Summary

Temperature and salinity of the Late Cretaceous Western Interior Seaway

The Western Interior Seaway (WIS) was a shallow and expansive body of water that covered the central United States during the Late Cretaceous. Attempts to reconstruct temperatures in the seaway using the oxygen isotopic composition of...Show More Summary

The cause of Late Cretaceous cooling: A multimodel-proxy comparison

Proxy temperature reconstructions indicate a dramatic cooling from the Cenomanian to Maastrichtian. However, the spatial extent of and mechanisms responsible for this cooling remain uncertain, given simultaneous climatic influences of tectonic and greenhouse gas changes through the Late Cretaceous. Show More Summary

Families Find Fossils of a Cretaceous “Swordfish”

Australopachycormus hurleyi – Rare Fossils Found The fearsome marine reptiles that once inhabited the Western Interior Seaway of North America led to this shallow, Cretaceous-age, inland sea being described as “Hell’s Aquarium”, but at the same time much of the land we know now as Australia was covered by an equally dangerous marine environment.  Amongst […]

Unique skin impressions of last European dinosaurs discovered in Barcelona

A geological research conducted in the village of Vallcebre, near Barcelona, to study the origins of rock sediments from the Late Cretaceous period (approx. 66 million years ago) has revealed an extraordinary artefact.

Ancient Bird Voice Box Sheds Light on the Voices of Dinosaurs

The Oldest Bird Voice Box – Honking in Antarctica The identification of the vocalisation organ in the fossilised remains of a Late Cretaceous bird has provided scientists with an insight into the sounds you might have heard had you visited Antarctica around 66 million years ago.  This bird voice box (called the syrinx), is the […]

Ancient Ducks Honked and Quacked Just Like They Do Today

If you were walking around Antarctica toward the end of the Cretaceous 66 million years ago, you may have heard a very familiar sound: the riotous honking of ducks. That's the conclusion of an analysis of the oldest bird vocal organ ever discovered. Show More Summary

Oldest fossil of bird's voicebox gives new hint at soundscape of the Cretaceous

66m-year-old syrinx of Vegavis iaai suggests that creature could honk and quack and confirms some modern bird groups lived alongside the dinosaurs The oldest evidence of a bird’s voice box has been found among the fossilised remains of a duck-like creature that lived more than 66 million years ago. Show More Summary

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