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Contributed by Yale Peabody Museum of Natural History.
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Transcription
Friday July 29. Port au Choix.
Rained all night and this morning. Packed all the Cambrio
foss into me large box and a barrel. or Old Portau Choix.
In the afternoon collected from the Lead of the bay Northward
to Bustard Cove. In this distance of about 3 1/2 miles saw about
30 to 35 feet of the lower four of zone 10 or K, firstly are of I
or zone 9 and some of zone 8 or St.
From the Lead of Port au Choix bay out without for about 1/2 mile
one sees along the shore and in the low cliffs just back of the shore
about 30 to 35 feet of a light grey to dark grey or brown bluish some-
what magnesian, once or less mottled silicestone or larry beds. x
These li. are full of gastropods that may be seen best on weathered
surfaces where the shells are slightly siliceous. It is next to impossible
to get good material. He got or saw fragments of a large Postelus,
Amphimorinpanensis, Wasmuo? large Bathyrnus fawl, Maclurea
posilly atlantica, a smaller Maclurea, large Tarachrema, other
gastropods, a large near Striphomena, Leptaena near incrassata
a small Camarella or Anagyzza, Rhynchotremia (one), Streptel-
asma frond loose, and maybe from the top of zone 9 or I) and
Eurytomites. Also small Endrenus or Camescens.
These beds look to me like the Oringon Chage, the lower
beds just above the sandstone there. Well see the higher beds
tomorrow in going around the north side of the bay and out south-
ward toward Point Rich.
In the cliffs near the northeast end of the bay maybe seen
the contact between zones 9 (I) and 10 (K). The contact is a
sharp one as the beds of 9 are not nodular while those of 10