Dino card No. 1166 of 2,027

Menucocelsior

Say it: meh-NOO-koh-SEL-see-or

Name means: “the taller one from Salitral Ojo del Agua”1

Ate: PlantsLong-necksLate Cretaceous

Menucocelsior was a medium-sized, long-necked dinosaur that lived in what is now Argentina. It shared its home with many other titanosaurs, each eating different plants so they didn't have to fight for food.1 2

Lived

72 to 66 million years ago3

Late Cretaceous

Fossils found in

Salitral Ojo del Agua area, Río Negro province, northern Patagonia, Argentina1 2

Food

Plants3

Length

8 m1

estimate

When did it live?

Triassic

Jurassic

Cretaceous

252 million years ago20114566, the asteroid

How big was it?

How long was it?

as long as 8 dogs nose to tailas long as 44 bananas end to end

How big was Menucocelsior compared to YOU?

Just maths in your browser. Nothing is saved or sent anywhere.

cool stuff

Fun facts

Menucocelsior is known from only a partial tail and some leg bones, including a right humerus and left fibula.1

It was a member of the Eutitanosauria group, but not a colossosaur, saltasaurine, or aeolosaurin.1

Menucocelsior lived about 72 to 66 million years ago, during the Maastrichtian stage of the Late Cretaceous.3

Its name comes from the Mapudungun word 'menuco' (watering hole) and Latin 'celsior' (higher), referring to the Salitral Ojo del Agua site.1

The species name 'arriagadai' honors Beto Arriagada, the owner of the ranch where the fossils were found.1

This dinosaur lived alongside other titanosaurs like Rocasaurus, and their different body shapes likely let them share the same area without competing too much.1 2

AI-made picture of Menucocelsior — An AI-made picture of how Menucocelsior might have looked, made by a computer from what scientists know. It is a guess: the real animal may have looked different, and nobody knows its true colours.

you asked

Most asked questions about Menucocelsior

?How big was Menucocelsior?

Menucocelsior was about 8 metres (26 feet) long, based on fossil material.1

?What did Menucocelsior eat?

It was a herbivore, as indicated by its classification as a sauropod dinosaur.3

?When did Menucocelsior live?

It lived during the Maastrichtian stage of the Late Cretaceous, about 72 to 66 million years ago.1

Ask Rex about Menucocelsior

Rex only answers questions about this page. 10 questions a month.

Rex is an AI and can make mistakes. He runs on servers in the EU and questions are never saved. Never type your name or other personal things.

For dino experts

Scientific name: Menucocelsior
Named by: Aranciaga Rolando et al. 20223
Group: Long-necks
Family / clade: Eutitanosauria3
Classification: Sauropodomorpha > Sauropoda > Titanosauria > Macronaria3
Age of the rocks: 72 to 66 million years (Maastrichtian)3
Rock formations: Allen3
Countries: Argentina3
Fossil records: 2 in the Paleobiology Database3
Discovery: Menucocelsior was named in 2022 by Aranciaga Rolando and colleagues based on a partial skeleton found in the Allen Formation of Argentina.3 1
Still debated: Scientists are not sure exactly which group of eutitanosaurs Menucocelsior belongs to, as its bones do not match any known subgroup.1

Where the facts come from

Menucocelsior (en.wikipedia.org)
The sauropod record of Salitral Ojo del Agua: An Upper Cretaceous (Allen Formation) fossiliferous locality from northern Patagonia, Argentina (ri.conicet.gov.ar)
Menucocelsior in The Paleobiology Database (CC BY 4.0): age, places, rock formations, classification.

Every fact on this page has a number that points to its source. If we got something wrong, sorry, we are dino fans, not a science journal. Tell us at [email protected] and we will fix it.

Rex is hungry! Dino Wiki is a dad's project for his dino-loving son, free with no ads. Grown-ups can feed Rex a snack to help keep it online.Feed Rex