TY  - SER
AU  - Costa,S.A.R.F.
AU  - Richter,M.
AU  - Toledo,P.M.de
AU  - Moraes-Santos,H.M.
TI  - Shark teeth from pirabas formation (Lower Miocene), northeastern Amazonia, Brazil
KW  - CAÇÃO
KW  - DENTE
KW  - ANATOMIA ANIMAL
KW  - TAXONOMIA
ER  -