Darriwilian to Sandbian Graptolites from Northwest China provides information on the exquisite, mostly-pyritic graptolites of middle to late Ordovician from North China and Tarim, China. These locations have developed the most complete successions of strata and fossil records of the time in the world. It provides the first systematic account of the renowned graptolite faunas with over 100 species belonging to 45 genera and 15 families preserved in black shale and limestone, with plentiful elaborate figures, camera-lucida illustrations and color photos of graptolites.

The book presents many aspects of the graptolites during the critical transition from middle to late Ordovician, including new morphologies, classification of latest convention, diversity change and evolutions, and based on which a refined biostratigraphy divisions and correlation with other major regions or continents. The book is useful for paleontologists, stratigraphic specialists, petroleum geologists, and graduate students of various fields in geology.
Presents the first monograph of the middle to late Ordovician graptolites from Northwest ChinaOffers four color figures and photos throughoutIncorporates knowledge and opinions from many top influential Ordovician graptolite and conodont paleontologists