Kurupi, Late CretaceousMarília Formation, Brazil · named 2021
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Kurupi

Type species Kurupi itaata

Lived
72 to 66 million years ago, Late Cretaceous
Diet
Carnivore
Group
Theropods, Abelisauridae
Found in
Brazil
Named by
Iori et al. 2021

Where its fossils were found

The evidence

Today

1 find

70 million years ago

Map: C. R. Scotese, PALEOMAP

Habitat

It lived in a semiarid landscape in what is now Brazil, with long dry spells. Aeolosaurus is among the titanosaurs recorded from the same rocks.

Field notes

About Kurupi

What it was like

Kurupi was an abelisaur, a predator with tiny arms. It is known from the hips and part of the tail, which suggest a stiff, strong tail base.

Its world

It lived about 72 to 66 million years ago, near the end of the Cretaceous, in what is now Brazil. It comes from the Marília Formation, where the titanosaur Aeolosaurus also lived.

How it was found

Iori and colleagues named Kurupi in 2021. The type species is Kurupi itaata. Its name comes from a figure of local legend.

Lived alongside

Found in the same rock formations

A rock formation can hold fossils laid down millions of years apart, so not every animal here met Kurupi.

The evidence

The science behind Kurupi

Which parts of the picture come from its own bones, and which come from its relatives.

From its own fossils

  • Part of the pelvis and several tail vertebrae establish Kurupi as an abelisaurid predator.
  • Broad projections on the tail vertebrae provided attachment areas for muscles.
  • The bones suggest a muscular, relatively stiff tail base.

Borrowed from relatives

  • Majungasaurus helps restore the missing short, deep head and most of the body.
  • The tiny arms and reduced fingers follow abelisaurid relatives such as Majungasaurus.

Still unknown

  • The shape of its skull and whether it had head ornaments.
  • Its full body proportions and the exact form of its hands and feet.
  • Its skin covering and color.

Often drawn wrong

  • The projections on its tail vertebrae belong beneath the muscles and skin, rather than sticking out as fins or spikes.
  • The horns of Carnotaurus or the head dome of Majungasaurus should not be copied onto Kurupi.

Discovery timeline

  1. 2007Close relativeSampson & Witmer
  2. 2012Close relativeBurch & Carrano
  3. 2021Named itIori et al.

Key papers

The research behind what we know of Kurupi

Close relatives

Other members of Abelisauridae

Sources: Wikidata