Genus
Valid Extinct

Macrocollum

Müller et al. 2018

Macrocollum is a genus of unaysaurid sauropodomorph dinosaur that lived during the Late Triassic period in what is now Brazil. It is one of the oldest dinosaurs known.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
2
Group
Dinosaures
Terrestrial
Macrocollum
click to enlarge
Digital drawing of the known skeletal remains of Macrocollum itaquii. Known elements represented in white and unknown in gray. © Maurissauro · CC BY-SA 4.0 · Wikimedia
PBDB ↗ Wikipedia ↗
Classification
Dinosauria Unranked clade
›
Saurischia Unranked clade
›
Sauropodomorpha Unranked clade
›
Unaysauridae Unranked clade
›
Macrocollum Genus
Measurements
Length
3,4 m ⓘ
Macrocollum itaquii
Mass
95 kg ⓘ
Macrocollum itaquii
Fossil sites 2 geolocated sites
Distribution
Top countries
🇧🇷 Brazil
2
Geological formations
Caturrita
2
Temporal distribution
Norian (227.3–205.7 Ma)
2
Species (1)
Macrocollum itaquii 227 Ma
Images 1
Bibliography
Original description
R. T. Müller, M. C. Langer, and S. Dias-da-Silva. 2018. An exceptionally preserved association of complete dinosaur skeletons reveals the oldest long-necked sauropodomorphs. Biology Letters 14:20180633:1-5 DOI ↗
Bibliography (2)
F. Prestes de Bem and R. T. Müller. 2023. First record of Macrocollum itaquii (Dinosauria: Sauropodomorpha) outside the type locality and its biostratigraphic significance. Historical Biology DOI ↗
R. T. Müller, M. C. Langer, and S. Dias-da-Silva. 2018. An exceptionally preserved association of complete dinosaur skeletons reveals the oldest long-necked sauropodomorphs. Biology Letters 14:20180633:1-5 DOI ↗