New Ceratopsian Dinosaur Species Discovered in Japan

Sasayamagnomus saegusai, a tiny early-branching neoceratopsian, offers insights into dinosaur migration patterns.

The dinosaur, measuring 0.8 meters and weighing 10 kg, lived during the Early Cretaceous period.
It lacked the large horns and frills typical of later ceratopsians like Triceratops.
Fossils were found in the Ohyamashimo Formation in Hyogo Prefecture by an amateur geologist.
Analysis suggests a close relationship with North American and Chinese primitive ceratopsians.
The discovery supports theories of dinosaur migration via the Bering Land Bridge during global warming events.