fosceal2 Posted July 29, 2009 Share Posted July 29, 2009 This creek borders the field where my big Beloved rock was found.The rocks along here are very interesting but most are too big for me and the kids to move. any ideas on the large flat looking shell? Thank you Fosceal Link to comment Share on other sites More sharing options...
MOROPUS Posted July 29, 2009 Share Posted July 29, 2009 What I see in the pics are brachiopod fossils (nothing to do with clams, worm family, although they look like). The layer is from paleozoic (Devonian?) era, and in the first pics, I can Id them as Spirifer species, but not much more... Nice outcrop! Look out for Trilos, Ammonoids and / or sea lilies! Just a matter of time! Hit more time in that place! Link to comment Share on other sites More sharing options...
grandpa Posted July 29, 2009 Share Posted July 29, 2009 I'll start. It's a braciopod. Looks like Derbia genus. What age is the exposure? Link to comment Share on other sites More sharing options...
Shamalama Posted July 29, 2009 Share Posted July 29, 2009 Definitely Brachiopods, the majority look like a Spiriferd of some sort from the Devonian. Those are internal molds of the shells (the external shell as since dissolved). The beaks are the key in figuring out an internal mold from an external shell. They look like a Mucrospirifer or Mediospirifer that I find in the Devonian rocks up here in PA. -Dave __________________________________________________ Geologists on the whole are inconsistent drivers. When a roadcut presents itself, they tend to lurch and weave. To them, the roadcut is a portal, a fragment of a regional story, a proscenium arch that leads their imaginations into the earth and through the surrounding terrain. - John McPheeIf I'm going to drive safely, I can't do geology. - John McPheeCheck out my Blog for more fossils I've found: http://viewsofthemahantango.blogspot.com/ Link to comment Share on other sites More sharing options...
fosceal2 Posted July 30, 2009 Author Share Posted July 30, 2009 Please expound on Derbia genus? Cannot locate any info Thank You Fosceal Link to comment Share on other sites More sharing options...
MOROPUS Posted July 30, 2009 Share Posted July 30, 2009 I think Shamalama is in the right path with the Mucrospirifer and the other one. Link to comment Share on other sites More sharing options...
Crinoid Queen Posted July 30, 2009 Share Posted July 30, 2009 Definitely Brachiopods, the majority look like a Spiriferd of some sort from the Devonian. Those are internal molds of the shells (the external shell as since dissolved). The beaks are the key in figuring out an internal mold from an external shell. They look like a Mucrospirifer or Mediospirifer that I find in the Devonian rocks up here in PA. I agree. Link to comment Share on other sites More sharing options...
fosceal2 Posted August 2, 2009 Author Share Posted August 2, 2009 Ok Brachiopods. So the one outlined in hot pink- is a brachiopod spirifer? Mucrospirifer or mediaspirifer? Thank you, Fosceal Link to comment Share on other sites More sharing options...
Shamalama Posted August 2, 2009 Share Posted August 2, 2009 That one is a brachiopod but I can't say for sure what genus. It could be something from the Strophomenata seeing that is has a wide hinge line and flat profile. -Dave __________________________________________________ Geologists on the whole are inconsistent drivers. When a roadcut presents itself, they tend to lurch and weave. To them, the roadcut is a portal, a fragment of a regional story, a proscenium arch that leads their imaginations into the earth and through the surrounding terrain. - John McPheeIf I'm going to drive safely, I can't do geology. - John McPheeCheck out my Blog for more fossils I've found: http://viewsofthemahantango.blogspot.com/ Link to comment Share on other sites More sharing options...
fosceal2 Posted August 2, 2009 Author Share Posted August 2, 2009 Thank you Shamalama Link to comment Share on other sites More sharing options...
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