Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
wards from the transition beds to the
more typical Utica.
The most abundant fossil is undoubtedly
Basiliscus canadensis, sparingly in the lime-
stone but wonderfully prolific but always
fragmentary in the Coell shales. But we
entire full form specimen in the limestone.
The next most abundant fossil is al-
monella testudinaris multisecta, and
a highly convex Rafinesquina. The latter
in the shale is always flat. Ojectambulus
gracilis is also common in the lowermost
limestone but some granites. One may say
that all the brachiopods vanish with the
limestone. Platystrophia also occurs but
they look more as if a large Jygrospira.
Then there is very rarely a Hepatella
and probably like the Kentucky Taunton form.
Lingula Strongensis is common in the
local shales. Leftorulus may also occur
here and if so my material will show it.
In the shales of other triadites Trionchus
feeli is fairly common and here we does
not see a trace of T. spinosus or chance-