Description

Notes: Handwritten label accompanying specimens reads "Layer of half decomposed pumice occurring beneath the layer with nodular concretions. Devils riding school Ascension". Another handwritten label reads "Layer of half decomposed pumice occurring immediately beneath the layer containing the nodular concretions Devils riding school Ascension". To see Oxford University Museum of Natural History's database go to http://www.oum.ox.ac.uk/collect/lifecoll2.htm