Archive for January, 2012

Unusual ‘Tulip’ Creature Discovered: Lived in the Ocean More Than 500 Million Years Ago

A bizarre creature that lived in the ocean more than 500-million years ago has emerged from the famous Middle Cambrian Burgess Shale in the Canadian Rockies.     Officially named Siphusauctum gregarium, fossils reveal a tulip-shaped creature that is about the length of a dinner knife (approximately 20 centimetres) and has a unique filter feeding system. […]

Existence of high energy paleo environment in the east coast of Indian sub-Continent

World fossil society’s founder Riffin T Sajeev and  his brother Russel T.Sajeev proposed that,The Rastellum (Arcostrea) genus in cavery basin geological area may have originated in late Jurassic with adaptive modifications like high toothed commissure. The reason for such adaptation is the existence of high energy environment with heavy sedimentation. Hence the possibility of various […]

Ancient Dinosaur Nursery: Oldest Nesting Site Yet Found

A new study led by University of Toronto Mississauga paleontologist Robert Reisz, with co-author, Professor David Evans of ecology and evolutionary biology and the Royal Ontario Museum, along with a group of international researchers, describes clutches of eggs, many with embryos, as well as tiny dinosaur footprints, providing the oldest known evidence that the hatchlings […]

One of the first dinosaurs to take to the air had wings with at least one black feather, according to a new study.

To determine the color of the winged dinosaur Archaeopteryx, scientists used a scanning electron microscope to analyze a fossilized feather from one of the raven-size creatures. The fossil was discovered in a limestone deposit in Germany in 1861. The team was surprised to discover that the microscopic structure of the ancient wing feather was identical to that […]

This specimen of rastellum (arcostrea) Sp. obtained from the late cretaceous bed from India. Stock photograph from World fossil society.

Birdlike Dinosaur Fossil May Shake Up the Avian Family Tree

In the 150 years since its discovery in Germany, Archaeopteryx has perched high on the avian family tree as the earliest and most primitive bird, somewhere near the evolutionary moment when some dinosaurs gave rise to birds. But recent fossil finds cast doubt on this interpretation: Archaeopteryx may be only a birdlike dinosaur rather than […]

Tree Resin Captures Evolution of Feathers On Dinosaurs and Birds

Secrets from the age of the dinosaurs are usually revealed by fossilized bones, but a University of Alberta research team has turned up a treasure trove of Cretaceous feathers trapped in tree resin. The resin turned to resilient amber, preserving some 80 million-year-old protofeathers, possibly from non-avian dinosaurs, as well as plumage that is very […]

Could Siberian Volcanism Have Caused the Earth’s Largest Extinction Event?

Around 250 million years ago, at the end of the Permian geologic period, there was a mass extinction so severe that it remains the most traumatic known species die-off in Earth’s history. Although the cause of this event is a mystery, it has been speculated that the eruption of a large swath of volcanic rock […]

‘Head-First’ Diversity Shown to Drive Vertebrate Evolution

The history of evolution is periodically marked by explosions in biodiversity, as groups of species try out a wide range of shapes and sizes. With a new analysis of two such adaptive radiations in the fossil record, researchers have discovered that these diversifications proceeded head-first. By analyzing the physical features of fossil fish that diversified […]

Rastellum species from cretaceous formation in India.

This specimen of rastellum (arcostrea) Sp. obtained from the late cretaceous bed from India. Stock photograph from World fossil society.