Prof. Dr. Antonio Carlos Sequeira says:
"I am a Professor of the museum and I have the collection about pre-historic animals,
my friend Sergio Alex Kugland de Azevedo asked me to present some posters about the
paleovertebrates in philately in the X Brazilian Symposium of Paleontology of Vertebrates.
So, I presented these 4 posters: The Paleozoic, The Mesozoic, The Mesozoic and the World of Dinosaurs
and The Cenozoic."