Jen,Here’s a 3D preserved Kope graptolite free of matrix. It’s probably the same species as yours which used to be known as Climacograptus typicalis. That has changed to some other genus but I don’t recall what the new name is. Scale bar is 5 mm Jack
Jack, you are thinking of Geniculograptus typicalis. Here’s a close-up photo of another 3D specimen from our website. http://www.drydredgers.org/fieldtrips/trip200410/large/grapto3.jpg
Yup! That’s it. With all the different species of graptolites in the Cincinnatian, this is the only one I ever seem to find.