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Faced with fish floating belly Dinosaurs


#Cosmoread: Muppet faced with a lean body fish more than 6 feet long, about 92 million years ago in Earth’s oceans down ancient plankton gulped, a new study suggests.
Researchers huge fish, which lived during the Cretaceous period, when dinosaurs roamed the world two new species identified. But like many of his contemporaries, the fish after about 66 million years ago an asteroid hit the Yucatan Peninsula went extinct.
Until now, scientists have only the fish, which genus Rhinichthys (Rink Oh Neek-tees) belongs to a species was identified. The new study builds on that count, and suggests that these fish were in the world, researchers Side.
“Based on our studies, we now have one scoop each represented by three different regions of the world Rhinichthys three different species,” said study co-researcher Kenshu Shimada, DePaul University in Chicago, a paleobiologist, said in a statement. “It just shows how little we are still living through the history of the Earth’s biodiversity is to know about. It is really mind-boggling.”
Shimada before his master, Teruya Uyeno, curator emeritus of Japan’s National Science Museum and the nature of the office almost 30 years ago suffered a Rhinconichthys fossil. Later, in 2010, Shimada and colleagues in England and Rhinconichthys, which they named R. Taylor open.
“We back so that the genus was so varied and so was not distributed globally,” Shimada said.
In 2012, the researchers detected a new piece in southern Colorado, where it was found in rugged Purgatoire River Valley designated R purgatoirensis, Shimada said. The excavation of ancient skulls from more than 150 hours to remove the surrounding rocks have taken, he said.
In the new study, the researchers dubbed Colorado specimen and Hokkaido, Japan, which they called Shimada uyenoi R in honor of the patron of fish fossil analyzed. The new analysis of ancient marine life and learn more about helping, researchers Side.
Rhinconichthys pachycormids called a family, to live on earth is part of the largest known bony fish. Fish species in this family do not have any living descendants, but they were great during the day. For example, Rhinconichthys a slim body for all of the known species, and at least 6.5 feet (2 meters) long, its huge 1.5-foot-long (0.5 m) measured including the head.
Also, Rhinconichthys’ long head like a big jaw kept open a Muppet’s mouth gaped, Shimada said. A couple of bones, hyomandibulae, a large, oar-shaped lever that helped swing the jaws protrude and open, with the help of fish to fill his mouth with delicious plankton formation, he said.
“These pachycormids during the age of the dinosaurs really cornered the market on industrial-scale consumption of plankton,” Shimada said. “Fish is a highly expandable diameter mouth that probably takes a large amount of water using their gills to filter feed plankton device a ‘tube’ is about 1 ft [0.3 m] had looked like.”
This “planktivorous” diet, known as suspension feeding, still used by marine vertebrates, blue whales, manta rays and whale sharks. Thanks to Rhinconichthys findings, the researchers used this method during the Mesozoic animals that, when dinosaurs were alive.
“We just barely what is likely to be a complex ecosystem that existed in the oceans during the age of dinosaurs was scratched the surface,” Shimada said.