09128 - Top Beautiful 3.30 Inch Perisphinctes virguloides Late Jurassic Ammonite - Madagascar Homalopteon Olivines have oxidized edges and

Olivines have oxidized edges and mostly transformed to iddingsite

Sanidopyge

Recommended: Iron

a cephalon of the same genus and an unidentified asaphid

It is difficult to find better specimens than this one

09128 - Top Beautiful 3.30 Inch Perisphinctes virguloides Late Jurassic Ammonite - Madagascar Homalopteon Olivines have oxidized edges andPerisphinctes sp, (ammonite) Cephalopoda Ammonoidea Perisphinctidae Perisphinctes is an extinct genus of ammonite cephalopod. They lived during the Middle Late Jurassic Epochs and serve as an biostratigraphic index fossil for that time period. This species of Perisphinctes comes from the classic locality of the Upper Jurassic (Oxfordian stage) of Madagascar.