"Prehistoric animals of Parana region"
Gibbons: UPU: Category: pR
|Stamps in set
||1o Porte Carta Comercial (1,95r) - Vespersaurus paranaensis
1o Porte Carta Comercial (1,95r) - Caiuajara debruskii
(width x height)
||Two mini sheets of 12 stamps each
On December 12, 2019 Brazilian Post issued a set of two personalized
stamps "Prehistoric animals of Parana region", that printed in
two mini-sheets of 12 stamps
each with increased image on the top. Both stamps designed by young
Brazilian paleoartist Luciano Vidal. One of the stamps depicting
paranaensis , another one shows pterosaur Caiuajara
debruskii whose fossils were found in Paraná region.
small, carnivorous dinosaur with short arms and a biped - whose body
weight is supported on the central toe. This is Vespersaurus
(on the left) , an unprecedented specimen in
the world, found in the
Cruzeiro do Oeste region, a municipality of 21 thousand inhabitants in
the Northwest of Paraná. The discovery of the fossil was announced at a
news conference in June this year (2019), as a result of research done
State University of Maringá (UEM), University of São Paulo (USP) and
the Paleontological Museum of Cruzeiro do Oeste. The study on the first
dinosaur “100% Paraná” was published in the scientific journal
The name came from the junction of vesper (west, in
Latin; homage to the city in which it was found) and saurus (lizard,
also in Latin).
The new dinosaur, which would have lived 90 million years ago, in the
Cretaceous period, was found in the same paleontological site where
numerous individuals of the pterosaur
(on the right) had already
been discovered .
Among the main anatomical characteristics that made them deserve a new
classification, differentiating them from the known species of
pterosaur, is the fact that they have the “beak”, that is, the final
part of the mandible, more inclined downwards than the others.
In addition, the animals have concavities in the roof of the mouth and
in the lower arch, the latter being more pronounced, and whose
usefulness the researchers have not yet discovered. Researchers
estimate that the animal lived in the Upper Cretaceous period, some 80
million years ago.
The importance of this discovery, in addition to being a new species,
lies in the accumulation of fossils at the site. This is the first
accumulation of pterosaurs found in the country, and the third
worldwide. The first occurred in Argentina, in the 1990s, and the
second in China, in 2014. Among the three, Paraná accumulation is the
one with the highest number of individuals identified so far.
A possible explanation for this concentration is the fact that the
Cruzeiro do Oeste region was a desert at the time when these animals
inhabited the place. For this reason, pterosaurs probably concentrated
around some type of oasis, which would explain the conditions in which
the bones were found (dismantled and mixed).
Veja Luciano Vidal
|Artwork of Luciano Vidal (paleoartist and the stamps designer)