1. Map showing structure contours on the top of the upper Jurassic Morrison Formation, Powder River Basin, Wyoming and Montana Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
2. The Middle Jurassic (mainly Bathonian) of Cardigan Bay and its palaeogeographical significance Author/Creator: Pennie Publication/Creation: London : H.M. Stationery Off, 1976 Resource Type: Book Access & Availability: Loading