biostratigrapher التعريفات والمعاني == English == === Etymology === From biostratigraphy + -er. === Noun === biostratigrapher (plural biostratigraphers) An expert in biostratigraphy. شارك هذه المقالة: Facebook Twitter WhatsApp LinkedIn كلمات ذات صلة biostratigraphers biostratigraphic biostratigraphie biostratigraphy biostratigraphique biostratigraphisch biostratigraphical biostratigraphically biostratigraphiques