Dino card No. 1301 of 2,027

Oceanotitan

Say it: OH-see-an-oh-TIE-tan

Name means: “ocean giant”1

Ate: PlantsLong-necksLate Jurassic

Oceanotitan was a huge, long-necked sauropod that lived in what is now Portugal. It stomped through forests and floodplains about 150 million years ago, munching on plants with its peg-like teeth.4 1

Lived

152 to 149 million years ago4

Late Jurassic

Fossils found in

Praia de Valmitão, Portugal (Praia da Amoreira-Porto Novo Formation)1 4

Food

Plants2

Length

10 to 20 m2

estimated from partial skeleton

When did it live?

Triassic

Jurassic

Cretaceous

252 million years ago20114566, the asteroid

How big was it?

How long was it?

as long as 4 cars parked in a rowas long as 110 bananas end to end

How big was Oceanotitan compared to YOU?

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

cool stuff

Fun facts

Oceanotitan might be the oldest known somphospondylan, a group of sauropods that includes the huge titanosaurs.1

Its name was inspired by the song 'Oceania' by Icelandic singer Björk.1

Oceanotitan had a unique bump on its shoulder blade and a special groove on its tail bones.1

It lived during the Late Jurassic, about 152 to 149 million years ago.2

Only one skeleton of Oceanotitan has been found, including parts of the tail, hips, shoulders, and back legs.1

AI-made picture of Oceanotitan — An AI-made picture of how Oceanotitan 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 Oceanotitan

?How big was Oceanotitan?

Nobody knows for sure. Scientists have not found enough bones to estimate its total body size.3

?What did Oceanotitan eat?

It was a plant-eater. It munched on plants with its peg-like teeth.3

?Where did Oceanotitan live?

It lived in what is now Portugal, about 150 million years ago. Its fossils were found in coastal cliffs near the Atlantic Ocean.3

?Is Oceanotitan a dinosaur?

Yes, it is a dinosaur. It is a type of long-necked sauropod.3

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For dino experts

Scientific name: Oceanotitan
Named by: Mocho et al. 20194
Group: Long-necks
Family / clade: Titanosauriformes4
Classification: Sauropodomorpha > Sauropoda > Macronaria4
Age of the rocks: 152 to 149 million years (Kimmeridgian)4
Rock formations: Praia da Amoreira-Porto Novo4
Countries: Portugal4
Fossil records: 1 in the Paleobiology Database4
Discovery: Oceanotitan was named in 2019 by paleontologists Pedro Mocho, Rafael Royo-Torres, and Francisco Ortega. The fossils were found in cliffs north of Praia de Valmitão in Portugal.4 1
Still debated: Scientists are not sure whether Oceanotitan is a very early somphospondylan or a more primitive titanosauriform.1

Where the facts come from

A new macronarian sauropod from the Upper Jurassic of Portugal: Journal of Vertebrate Paleontology: Vol 39 , No 1 - Get Access (tandfonline.com)
PBDB Taxon (paleobiodb.org)
Oceanotitan (en.wikipedia.org)
Oceanotitan 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.

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