Microdontosaurus Facts
Note: Although historically classified as a dinosaur, Microdontosaurus is no longer considered one based on current scientific understanding. It remains a fascinating prehistoric creature.
Pronunciation: MY-kro-DON-toe-SORE-us
Name meaning: Small-toothed lizard
| Diet | Piscivore |
| Height | 1.5m |
| Length | 4m |
| Weight | 500 kg |
| Speed | 30 km/h |
| Environment | Water |
| Era | Jurassic |
| Period | Early Jurassic |
| Type | Other |
| Location | Unknown |
Although once thought to be a dinosaur, Microdontosaurus is now understood to be a marine reptile that lived in the oceans during the Early to Middle Jurassic period, approximately 201 to 137 million years ago. This fascinating creature was actually an ichthyosaur - a group of dolphin-like reptiles that ruled the ancient seas long before dinosaurs walked the Earth.
As its name suggests, Microdontosaurus possessed relatively small teeth compared to other ichthyosaurs of its time. These modest dental features hint at a specialised feeding strategy, likely targeting smaller fish and marine invertebrates in the warm, shallow seas of the Jurassic period. Its streamlined body shape and powerful tail would have made it an efficient swimmer, perfectly adapted for life in the water.
It's worth noting that Microdontosaurus remains an informal name that was never properly published in scientific literature, making it what paleontologists call a 'nomen nudum' or 'naked name'. This means that whilst the name has appeared in various sources, it lacks the formal scientific description required for official recognition. Despite this taxonomic uncertainty, the creature it represents - a member of the ophthalmosaurid family of ichthyosaurs - provides valuable insight into the incredible diversity of marine reptiles that thrived alongside the dinosaurs.
What made Microdontosaurus distinctive?
Microdontosaurus was characterised by its relatively small, pointed teeth that gave it its name. Like other ichthyosaurs, it had a dolphin-like body with four paddle-shaped flippers and large eyes adapted for hunting in marine environments.
Behaviour
As a marine predator, Microdontosaurus would have spent its entire life in the ocean, hunting fish and small marine creatures. It likely gave birth to live young in the water, as evidenced by fossil specimens of related ichthyosaurs found with babies.
Microdontosaurus FAQ
What did Microdontosaurus eat?
Microdontosaurus was a piscivore, meaning it primarily ate fish. Its small teeth suggest it targeted smaller fish and marine invertebrates rather than large prey, making it a specialist feeder in the Jurassic marine ecosystem.
How big was Microdontosaurus?
Microdontosaurus was estimated to be around 4 metres long and 1.5 metres tall, weighing approximately 500 kilograms. This made it a medium-sized ichthyosaur, smaller than some of the giants of its family but still a formidable marine predator.
When did Microdontosaurus live?
Microdontosaurus lived during the Early to
Middle Jurassic period, approximately 201 to 137 million years ago. This was a time when the oceans were warm and teeming with marine life.
Where was Microdontosaurus found?
The exact discovery location of Microdontosaurus fossils is unknown, as this creature was never formally described in scientific literature. The name remains an informal designation in paleontological records.
How do you pronounce Microdontosaurus?
Microdontosaurus is pronounced 'MY-kro-DON-toe-SORE-us', with emphasis on the second and fourth syllables. The name breaks down into 'micro' (small), 'donto' (tooth), and 'saurus' (lizard).
What does Microdontosaurus mean?
Microdontosaurus means 'small-toothed lizard' in Latin and Greek. The name refers to its relatively modest dental features compared to other ichthyosaurs, though it wasn't actually a lizard but a marine reptile.
How fast could Microdontosaurus run?
Microdontosaurus couldn't run as it was a fully aquatic creature. However, it could swim at estimated speeds of up to 30 km/h, using its powerful tail and streamlined body to pursue fish through the Jurassic seas.
What type of dinosaur was Microdontosaurus?
Microdontosaurus was not actually a dinosaur at all. It was an ichthyosaur - a type of marine reptile that lived in the oceans. Whilst it lived during the same time period as dinosaurs, it was a completely different group of reptiles adapted for aquatic life.
Was Microdontosaurus related to birds?
No, Microdontosaurus was not related to birds. As an ichthyosaur, it belonged to a completely different branch of the reptile family tree. Birds evolved from theropod dinosaurs, whilst ichthyosaurs were marine reptiles that evolved separately.
How many Microdontosaurus fossils have been found?
The exact number of Microdontosaurus fossils is unclear, as this name was never formally published in scientific literature. It remains an informal designation, so any specimens would likely be reclassified under other ichthyosaur species names.
