Whaleback, Part Deux: Les Fossils
Last week, I put up some pictures of the folded strata at "the Whaleback" outside of Shamokin, Pennsylvania. Today, I'll augment those with some images of the fossils found at that site and at another outcrop of the Llewellyn Formation near St. Clair, Pennsylvania. Here's a fern impression to start with:
Here's a Sigillaria trunk showing clear "leaf" bract scars (these are the points of attachment for leafs to the trunk):
Close-up of the bract scars:
Stripey bark, also of a Sigillaria (apparently):
Close-up of the bract scars:
Stripey bark, also of a Sigillaria (apparently):
A big old Sigillaria trunk crossed by several of the hematite nodules as noted in the first post:
One more impression of the trunk's "bark" texture:
One more impression of the trunk's "bark" texture:
There were also sphenopsids and I picked up a two-foot length of Sigillaria root (dubbed "Stigmaria" in spite of being part of the same organism). Those samples are all in the lab at school, so I guess I'll shoot a few photos of them and put them up here as a third and final part of this Whaleback series.
Labels: appalachians, fossils, pennsylvania
1 Comments:
Let me guess. You eventually got sick of leaving your hammer on the outcrop.
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