An arctometatarsalian organism is one in which the proximal part of the middle metatarsal is pinched between the surrounding metatarsals. The trait appears...

a long lower leg, indicating a good running capacity. The foot is "arctometatarsal", with a 'pinched' upper third metatarsal. The second metatarsal is...

well as the axis and third vertebra, are fused into a single bone. arctometatarsal In the arctometatarsalian condition (from Latin arctus – "compressed")...

lived in a mesic habitat, one that was half-dry. As its foot was not arctometatarsal and the animal thus was not a specialised running form, the describing...

trochanter; the fourth trochanter was well-developed. The foot was not arctometatarsal. An enlarged second foot claw was lacking. The describers assigned...

reproduction Dinosaur egg Dinosaur senses Dinosaur vision Antorbital fenestra Arctometatarsal Armour (anatomy) Claw Club (anatomy) Coracoid tubercle Crop (anatomy)...

metatarsus of the holotype to Oviraptor sp. and reconstructed it with an arctometatarsal—a condition where the upper end of the third metatarsal is narrowed...