Eolambia
Eolambia was a plant-eating dinosaur that lived in what is now Utah, USA, about 96 million years ago. It had a beak and lots of teeth for chewing tough plants. It was an early cousin of the duck-billed dinosaurs.15
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Fun facts
Eolambia is known from hundreds of bones, including both adults and babies, so scientists have a good picture of its skeleton.1
The first Eolambia fossil was found by Carole and Ramal Jones in 1993, and the species name honors Carole.1
Young Eolambia were hunted by big crocodile-like reptiles that lived in the lakes, but adults were too big for them.1
Grown-up Eolambia, at least eight or nine years old, were hunted by large meat-eating dinosaurs like Siats.1
Eolambia lived in a floodplain with lakes that changed water levels over about 21,000-year cycles.1
The name Eolambia was suggested by paleoartist Michael Skrepnick, replacing an earlier informal name.1
Most asked questions about Eolambia
?How big was Eolambia?
About 6 metres (20 feet) long. That is about as long as a large van.1
?What does the name Eolambia mean?
It means 'dawn lambeosaurine', because scientists first thought it was an early member of the lambeosaurine group.1
?Was Eolambia a hadrosaur?
No, it is a hadrosauroid, an early cousin of the true duck-billed dinosaurs (hadrosaurs).1
?How old could Eolambia get?
Scientists estimate it lived at least 8 to 9 years, based on a subadult specimen.4
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Myth buster
Myth: Eolambia was a duck-billed dinosaur like later hadrosaurs.
Truth: Eolambia was an early relative of hadrosaurs, but it was not a true hadrosaurid. Scientists place it outside the hadrosaurid family.2
For dino experts
- Scientific name
- Eolambia
- Named by
- Kirkland 19985
- Group
- Beaked plant-eaters
- Family / clade
- Hadrosauroidea5
- Classification
- Ornithischia > Ornithopoda > Iguanodontia5
- Age of the rocks
- 121 to 94 million years (Aptian / Cenomanian)5
- Rock formations
- Cedar Mountain5
- Countries
- USA5
- Fossil records
- 12 in the Paleobiology Database5
- Discovery
- The first Eolambia fossils were found in 1993 by Carole and Ramal Jones in Utah. Paleontologist James Kirkland named it Eolambia caroljonesa in 1998.1
- Still debated
- Scientists debate exactly where Eolambia sits on the family tree, with some originally thinking it was a lambeosaurine hadrosaurid, but later studies place it as a more basal hadrosauroid.2
Where the facts come from
- Eolambia (en.wikipedia.org)
- Osteology of the Basal Hadrosauroid Eolambia caroljonesa (Dinosauria: Ornithopoda) from the Cedar Mountain Formation of Utah | PLOS One (journals.plos.org)
- Eolambia caroljonesa | Dinosaur Database by DinoAnimals.com (dinoanimals.com)
- Anatomy, taphonomy, and phylogenetic implications of a new specimen of Eolambia caroljonesa (Dinosauria: Ornithopoda) from the Cedar Mountain Formation, Utah, USA (pmc.ncbi.nlm.nih.gov)
- Eolambia in The Paleobiology Database (CC BY 4.0): age, places, rock formations, classification.
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