Columbia subject headings:
Paleontology--Brazil--Araripe Basin.
Paleontology--Cretaceous.
Harvard subject headings:
Fossils--Brazil--Araripe Basin--Atlases.
Paleontology--Brazil--Araripe Basin--Atlases.
Paleontology--Cretaceous--Atlases.
Princeton subject headings:
Fossils--Brazil--Araripe Basin.
Paleontology--Brazil--Araripe Basin.
Paleontology--Cretaceous.