Upper Aalenian Facies Block.

From the murchisonae Zone in the Wutach Valley. This block measures 28x18x6cm. and consists of one large Ludwigia haugi which was broken during deposition, 7 Ancolioceras opalinoides ammonites of various sizes (3 are on the back) and lots of shell substance from various bivalves including an Entolium demissum and a Trigonia sp. (again on the reverse side). More photos can be seen here: http://www.thefossil...e-2#entry676893