Graciela Helena Piñeiro Martínez is a

Uruguayan Uruguay (; ), officially the Oriental Republic of Uruguay ( es, República Oriental del Uruguay), is a country in South America. It shares borders with Argentina to its west and southwest and Brazil to its north and northeast; while bordering ...

biologist and

paleontologist Paleontology (), also spelled palaeontology or palæontology, is the scientific study of life that existed prior to, and sometimes including, the start of the Holocene epoch (roughly 11,700 years before present). It includes the study of fossi ...

. Her work led to the discovery of ''

Mesosaurus ''Mesosaurus'' (meaning "middle lizard") is an extinct genus of reptile from the Early Permian of southern Africa and South America. Along with it, the genera '' Brazilosaurus'' and ''Stereosternum'', it is a member of the family Mesosauridae a ...

'' fossils in Uruguay.

References

University of the Republic (Uruguay) alumni University of the Republic (Uruguay) faculty Uruguayan biologists Uruguayan paleontologists Living people Year of birth missing (living people) {{paleontologist-stub