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Plateosaurus

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Plateosaurus was a significant genus of early dinosaur. It belonged to a group called plateosaurids. These animals were basal sauropodomorphs. This means they were early relatives of the giant, long-necked sauropods.

Plateosaurus Scale
Plateosaurus Scale

Plateosaurus lived during the Late Triassic epoch. This was approximately 214 to 204 million years ago. Most of these dinosaurs lived in what is now Central and Northern Europe. They are very important to science because we have found many fossils.

Plateosaurus cent europ localities2
Plateosaurus cent europ localities2

These fossils help us understand how early dinosaurs lived and grew.

The body of Plateosaurus was built for a specific way of life. It was a biped, which means it walked on two legs. It had powerful hind limbs to support its weight. Its arms were short but very muscular.

Plateosaurus arm and hand
Plateosaurus arm and hand

The hands had three fingers with large claws. Scientists think these claws helped with feeding or defense. The dinosaur had a small skull on a long, flexible neck.

Plateosaurus skull (1)
Plateosaurus skull (1)

It used sharp but plump teeth to crush plants. This tells us it was a herbivore, or an animal that eats plants. One unusual trait was its developmental plasticity. This means the animals did not all grow to the same size. Fully grown adults varied greatly in length and weight.

Scientists currently recognize three valid species of Plateosaurus. These are Plateosaurus trossingensis, P. longiceps, and P. gracilis.

Plateosaurus quenstedti
Plateosaurus quenstedti

The species P. trossingensis is the type species. Previously, P. engelhardti was considered the type species. However, the ICZN ruled that P. engelhardti was undiagnostic. This means it was too similar to other dinosaurs to be unique. There is still no broad consensus on the taxonomy of all plateosaurids. Taxonomy is the science of naming and classifying organisms. Many other names have been used in the past as synonyms. Synonyms are extra names that actually belong to the same animal.

The history of discovering Plateosaurus is quite long. Johann Friedrich Engelhardt found the first bones in 1834. These were vertebrae and leg bones found at Heroldsberg, Germany.

Plateosaurus engelhardti
Plateosaurus engelhardti

Hermann von Meyer described the new genus three years later. Even though it was found early, it was not in Richard Owen's original list of dinosaurs. Owen named the group Dinosauria in 1842. At that time, Plateosaurus was too poorly known to be identified as a dinosaur. Today, it is one of the most well-known dinosaurs in science. Over 100 skeletons have been found by researchers.

Many different locations have provided important fossil evidence. Most finds are in Germany, Switzerland, and France.

Plateosaurus MSF23
Plateosaurus MSF23

In Saxony-Anhalt, Germany, excavations found between 39 and 50 skeletons. These were found in a clay pit between 1910 and 1930. Sadly, much of the material in Berlin was destroyed during World War II. Another major site is Trossingen in Germany. Between 1911 and 1932, researchers found 35 complete or partial skeletons there. The abundance of fossils in Swabia earned it the nickname Schwäbischer Lindwurm. This translates to Swabian lindworm or Swabian dragon.

Plateosaurus SMNS F33
Plateosaurus SMNS F33

Even a North Sea oil drill found a limb bone fragment in 1997.

Plateosaurus fossils tell us about the life and death of these animals. Most individuals lived for at least 12 to 20 years. We do not know their maximum life span. Scientists also study taphonomy to understand how they became fossils. Taphonomy is the study of how organisms decay and become embedded in rock.

Plateosaurus MSF23
Plateosaurus MSF23

Researchers also look at biomechanics to see how the skeletons worked. This helps us understand their posture and how they moved. For a long time, Plateosaurus was misunderstood by the public. Since 1980, new studies in palaeobiology have changed our views. Palaeobiology is the study of the life circumstances of ancient animals.

Understanding Plateosaurus connects us to the wider history of life. It shows how the first large herbivores began to evolve. By studying its bone microstructure, scientists learn about growth. It also helps us map how dinosaurs spread across Europe. The fossils found in different formations, like the Trossingen Formation, show where they lived. Even the discovery of an 'Issi' genus in Greenland relates to this group. Every new bone helps complete the puzzle of the Triassic period. We are learning more about how these 'broad lizards' shaped the world.

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🖼️ Images & Media (16)
File:Plateosaurus cent europ localities2.png
Plateosaurus cent europ localities2.png
File:Plateosaurus SMNS F33.jpg
Plateosaurus SMNS F33.jpg
File:Geological magazine (1914) (14764329552).jpg
Geological magazine (1914) (14764329552).jpg
File:Sellosaurus (1).jpg
Sellosaurus (1).jpg
File:Plateosaurus quenstedti.jpg
Plateosaurus quenstedti.jpg
File:Plateosaurus engelhardti.png
Plateosaurus engelhardti.png
File:Plateosaurus skull (1).jpg
Plateosaurus skull (1).jpg
File:Plateosaurus Scale.svg
Plateosaurus Scale.svg
File:Plateosaurus engelhardti.JPG
Plateosaurus engelhardti.JPG
File:Sellosaurus.jpg
Sellosaurus.jpg
File:Trossingen formation NT.jpg
Trossingen formation NT.jpg
File:Plateosaurus arm and hand.jpg
Plateosaurus arm and hand.jpg

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