External features of embryonic and early postembryonic shells of a Carboniferous goniatite Vidrioceras from KansasAuthors: Kazushige Tanabe | Cyprian Kulicki | Neil H Landman | Royal H MapesPublished in Paleontological Research, in 2001, in volume 5, pages 13-19Created: 2013-02-27, modified: 2013-02-27