Look up · dinosaur 763 of 1,425
early long-neck
Macrocollum
Say it like this: “MAK-row-COLL-um”
Macrocollum itaquii
Macrocollum ate plants and walked on two legs. It lived in the Late Triassic. Bones have been found in Brazil.
- When
- Late Triassic (Norian) · roughly 227.3 to 205.7 million years ago
- Named in
- 2018 · Müller, R. T.; Langer, M. C.; Dias-da-Silva, S.
- Hip height
- 0.8 m · 3 ft
- Length
- 3.1 m · 10 ft
- Weight
- 90 kg · 198 lb
- Found in
- Brazil · Caturrita
- Food and walking
- Herbivore · Two legs
- Kind
- early long-neck · Sauropodomorph
- Family branch
- Unaysauridae
The story in short
The genus Macrocollum dates to 2018, the year R. T. Müller and colleagues described it. The name means “long neck.”
Fossils referred to Macrocollum date to the Late Triassic (Norian), roughly 227.3 to 205.7 million years ago. Finds come from Brazil, including the Caturrita Formation. It was a herbivore and walked on two legs.
Published estimates put Macrocollum at a length near 3.1 m, hips about 0.8 m high, and a body mass around 90 kg.
On the family tree it sits in Unaysauridae, among the early long-necked dinosaurs.
Close relatives
Jaklapallisaurus
Jaklapallisaurus asymmetricus
Late Triassic (Norian) · roughly 227.3 to 205.7 million years ago
Musango
Musango matusadonaensis
Late Triassic (Norian) · roughly 227.3 to 205.7 million years ago
Unaysaurus
Unaysaurus tolentinoi
Late Triassic (Norian) · roughly 227.3 to 205.7 million years ago