Discovered the world of dinosaurs missing in Texas city

Researchers have recently unearthed 95 million-year-old dinosaurs, sharks, other prehistoric monsters and their excrements in Arlington - one of Texas' largest cities.

These fossils have added details to the Texas scene in the Cretaceous period, which lasted between 146 and 66 million years ago.

The result is that medium sized theropods have never been known - they are a group of bipedal dinosaurs including Tyrannosaurus rex. This site also contains the most complete skeleton to date of a Protohadros - one of the oldest extant duckbill dinosaurs.

Crocodile, sea turtles and parts of ancient plants, including a 6-foot (183 cm) log, were also found.

The Arlington Archosaur area (Archosaur means 'dominant lizards') was first discovered in 2003, but excavations began only in the spring of 2008. Paleontologists They published details of their findings during a meeting of the Central Southern Geographic Society held in Dallas.

Texas 95 million years BC

Today the fossil site has also become an urban area, according to paleontologist Derek Main of the University of Texas in Arlington. He said: 'It is surrounded by highways, there are Starbucks cafes down the street too. You can sip coffee if you want. '

But what remains is the time when most of Texas was submerged under the sea, covered by large seas separating North America, but intersecting the Gulf of Mexico and the Arctic Ocean.

(Photo: nationalgeographic.com)

At that time, Arlington was only on the low coastal plain.Here, marshes gradually shift to shallow seas - a place similar to the Mississippi River Delta today.

Stool is the focal point

In addition to bones, Texas' dinosaur fossil excavation site is also one of the most diverse in North America.

Main said: 'Most animals we find fossils, we also see their excrement'.

Inside stool stones, the team found everything from chewed bones, plants, shells or shells, and even coral pieces. According to Main, this is the focal point for nutrition and behavior of prehistoric animals.

Paleontologists are anxious to wait for additional information from this unusual location.

Aaron Pan, scientific manager at the Fort Worth Museum of Natural History and Nature, said: 'In general, dinosaur fossils in the early Cretaceous period were rare'.

The reason for fossils at the Arlington site is more advantageous because of the area's previous swamp environment , this environment is very convenient to preserve the remains of dinosaurs.

Another rare feature of Arlington is the emergence of both terrestrial and underwater animals due to the long history of the coastal plain. Most Texas fossil sites originate from the early Cretaceous period, which rarely has marine life because most states are underwater.

Pan said: 'It is unusual for us to have a mixture of animals together'.