Jaime A. Villafaña

4 Questions 8 Answers 0 Followers

Questions related from Jaime A. Villafaña

Does anyone know an actual species of myliobatis with this dental plate?.

Does anyone know a actual species of myliobatis with a similar dental plate?. The plates are hexagonal with a high crown, 5 to 6 central rows in the upper tooth plate and 15 central rows in the...

23 September 2015 7,433 7 View

Can anyone help me with the identification of these crustacean?

This record is from Chile (Neogene)

04 June 2015 6,017 7 View

Does someone know the fossil record of the genus Pliotrema?

Recently, I reviewed a serrated tooth like Pristiophorus, this tooth has an approximate age of Late Miocene-early Pliocene Chile. Can this specimen be found in this location?

01 August 2014 3,397 3 View

Any researcher working on Neogene fossil fishes from Japan?

Dear all, I am starting a study on diversification patterns of Neogene fishes (chondrichthyes+bony fishes) from Japan. The main objective is to estimate richness, and rates of origination and...

01 January 1970 9,963 0 View