Sarabosaurus
Sarabosaurus was a small, ancient marine lizard that swam in a warm sea that once covered the middle of North America. It lived about 94 million years ago, during the time of the dinosaurs, and is the oldest mosasaur ever found in that region.12
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Datos curiosos
Sarabosaurus is the oldest mosasaur known from the Western Interior Seaway, dating to about 93.7 million years ago.1
The only known specimen was a mature adult, only 3 to 4 years old when it died.1
Its name comes from the Arabic word 'sarab' meaning desert mirage, because the sea it lived in has long since vanished.1
Sarabosaurus had a unique blood supply to its brain, different from most lizards, similar to how whales evolved.2
The species name 'dahli' honors Steve Dahl, a volunteer who helped collect fossils at the monument.1
Scientists used micro-CT scanning to study the braincase and map the blood vessels of Sarabosaurus.2
Sarabosaurus was about 3 metres (9.8 feet) long, small compared to later giant mosasaurs.1

Para expertos en dinos
- Nome científico
- Sarabosaurus
- Bautizado por
- Polcyn et al. 20233
- Grupo
- Mosasauros
- Familia / clado
- Mosasauridae3
- Clasificación
- Mosasauroidea3
- Idade das rochas
- de 94 a 90 millóns de anos (Turonian)3
- Formacións rochosas
- Tropic Shale3
- Países
- EUA3
- Rexistros fósiles
- 1 na Paleobiology Database3
- Descubrimento
- The fossil was discovered in March 2012 by volunteer Scott Richardson in the gray shale of Utah. It was named in 2023 by Michael Polcyn and colleagues, with the species named after volunteer Steve Dahl.12
- Aínda en debate
- Scientists are still debating exactly how Sarabosaurus is related to other early mosasaurs, especially its position in the family tree.1
De onde veñen os datos
- Sarabosaurus (en.wikipedia.org)
- 94-million-year-old fossil provides clues to ancient reptile ... (blm.gov)
- Sarabosaurus in The Paleobiology Database (CC BY 4.0): idade, lugares, formacións rochosas, clasificación.
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