Sellosaurus Facts
Pronunciation: SELL-oh-SORE-us
Name meaning: Saddle Lizard
| Diet | Herbivore |
| Height | 1.5m |
| Length | 4m |
| Weight | 300 kg |
| Speed | 15 km/h |
| Environment | Land |
| Era | Triassic |
| Period | Triassic |
| Type | Sauropod |
| Location | Germany |
Although originally described as a separate genus, Sellosaurus is now understood to represent juvenile specimens of Plateosaurus gracilis, making it an important part of understanding early sauropod development. This early sauropod lived during the Late Triassic period, between 227 and 201 million years ago, in what is now Germany.
Sellosaurus specimens show the characteristic features of juvenile plateosaurs, with relatively longer limbs compared to body size and less robust bone structure than adult Plateosaurus. These dinosaurs inhabited the warm, semi-arid landscapes of Late Triassic Europe, living alongside other early dinosaurs and various archosaurs in an ecosystem quite different from today's world.
As herbivores, these early sauropods fed on ferns, cycads, and conifers that dominated the Triassic landscape. Their teeth were leaf-shaped and suitable for stripping plant material, though they likely swallowed stones to help grind food in their stomachs. The specimens that were once called Sellosaurus demonstrate how these dinosaurs grew from relatively small juveniles into the larger adults we know as Plateosaurus.
The reclassification of Sellosaurus has helped palaeontologists better understand the growth patterns and development of early sauropods, showing how dramatically these dinosaurs changed as they matured from youngsters into fully-grown adults.
What made Sellosaurus distinctive?
Sellosaurus specimens showed the typical juvenile plateosaur features including proportionally longer legs, a more lightly built skull, and less robust vertebrae compared to adult Plateosaurus. The neck was moderately long and the tail made up about half the total body length.
Behaviour
Based on the juvenile nature of Sellosaurus specimens, these young dinosaurs likely stayed close to adults for protection and may have fed on softer plant materials than their fully-grown relatives. They were probably capable of both bipedal and quadrupedal locomotion, switching between the two as needed.
Discovery
Sellosaurus was first described by Friedrich von Huene in 1908. The original fossils were discovered at Löwenstein Formation, Baden-Württemberg, Germany.
Sellosaurus FAQ
What did Sellosaurus eat?
Sellosaurus was a herbivore that fed on Late
Triassic plants including ferns, cycads, and early conifers. As juveniles, they likely preferred softer plant materials that were easier to process than the tougher vegetation eaten by adults.
How big was Sellosaurus?
Sellosaurus reached about 1.5 metres in height and 4 metres in length, weighing approximately 300 kilograms. However, these measurements represent juvenile specimens, which were much smaller than the fully-grown adults.
When did Sellosaurus live?
Sellosaurus lived during the Late
Triassic period, approximately 227 to 201 million years ago. This was a time when dinosaurs were just beginning to diversify and become dominant land animals.
Where was Sellosaurus found?
Sellosaurus fossils were discovered in Germany, specifically in the Löwenstein Formation of Baden-Württemberg. This region has been particularly rich in Late
Triassic dinosaur fossils.
How do you pronounce Sellosaurus?
Sellosaurus is pronounced 'SELL-oh-SORE-us', with emphasis on the first syllable. The name flows quite naturally when spoken aloud.
What does Sellosaurus mean?
Sellosaurus means 'saddle lizard' in Latin, referring to the saddle-shaped vertebrae found in the original specimens. This feature is actually common among early sauropod dinosaurs.
How fast could Sellosaurus run?
Sellosaurus could probably reach speeds of around 15 km/h when running. As juveniles, they were likely more agile and faster relative to their size than the much larger adults.
What type of dinosaur was Sellosaurus?
Sellosaurus was an early sauropod dinosaur, specifically representing juvenile specimens of what we now call Plateosaurus gracilis from the family Plateosauridae. These were among the first large plant-eating dinosaurs.
Was Sellosaurus related to birds?
Sellosaurus was not directly related to birds. As a sauropod, it belonged to a different major group of dinosaurs than the theropods from which birds evolved, though all dinosaurs share common ancestors.
How many Sellosaurus fossils have been found?
Several Sellosaurus specimens were found in the early 1900s, though the exact number is unclear as they are now recognised as juvenile Plateosaurus remains rather than a separate species. The specimens were important for understanding early sauropod development.
