Protohadros
Protohadros was an early duck-billed dinosaur that lived about 95 million years ago. It had a special downward-curved snout for munching on low-growing plants. This dinosaur is one of the oldest hadrosaurs ever found!21
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Protohadros is the oldest definite hadrosaurid, or duck-billed dinosaur, known to science.2
Its name means 'first hadrosaur' because it lived so early in hadrosaur evolution.1
This dinosaur had a downward-pointing muzzle, which scientists think helped it eat plants close to the ground.2
Protohadros had a mix of primitive and advanced skull features, showing a step in the evolution of chewing ability.2
Its fossils were found in the Woodbine Formation of Texas, which was a delta environment during the Cretaceous.2
The only known species is Protohadros byrdi, named after the person who discovered it.1

Protohadros: gehien egindako galderak
?How big was Protohadros?
It was a medium sized dinosaur, about 6 to 8 metres (20 to 26 feet) long.31
?What did Protohadros eat?
It was an herbivore that ate low-growing plants, probably in floodplains or deltas. It may have also eaten aquatic plants.32
Dino adituentzat
- Izen zientifikoa
- Protohadros
- Izendatzailea:
- Head 19984
- Taldea
- Landarejale mokodunak
- Familia / klada
- Hadrosauroidea4
- Sailkapena
- Ornithischia > Ornithopoda > Iguanodontia4
- Arroken adina
- 100 eta 94 milioi urte artean (Cenomanian)4
- Arroka-formazioak
- Lewisville4
- Herrialdeak
- AEB4
- Fosil-erregistroak
- 4 The Paleobiology Database datu-basean4
- Aurkikuntza
- Protohadros was named by paleontologist J. J. Head in 1998, based on a partial skull and some bones from the Woodbine Formation in Texas.42
- Oraindik eztabaidagai
- Scientists debate whether hadrosaurs first evolved in North America or Asia, and Protohadros is a key piece of that puzzle.2
Datuak nondik datozen
- Protohadros | Natural History Museum (nhm.ac.uk)
- A new species of basal hadrosaurid (Dinosauria, Ornithischia) from the Cenomanian of Texas: Journal of Vertebrate Paleontology: Vol 18, No 4 (tandfonline.com)
- Protohadros (en.wikipedia.org)
- Protohadros in The Paleobiology Database (CC BY 4.0): adina, tokiak, arroka-formazioak, sailkapena.
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