Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
The Rensselaer's of this lorn zone appear to me
be eraser plicated. Also see if they are smaller below in
the older beds.
Bivalves appear to be the most persistent forms of the
Upper Dalhousie beds and many of the species may go through
most of these beds.