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Geobulletin
alpha
News from the Geoblogosphere
by Stratigraphy.net
New from Snet:
Lithologs
, a new tool to create lithological/sedimentological logs online..
Blog post recommendation
Mortoniceras sp. ammonite from the Duck Creek formation of Texas
Before I started on my adventure in Oklahoma I landed in Dallas and drove north to a site that a good friend had suggested I visit. It was a creek that exposed the Duck Creek formation (Cretaceous, Albian stage) in a couple of spots. Having never collected in Texas before, but seeing plenty of field reports from those who had, I knew the Duck Creek formation should produce some nice fossils. I was not wrong. I found four specimens of the ammonite
Mortoniceras sp.
washed out in the creek bed.
Mortoniceras
can be identified by the prominent ribbing along the shell and strong rostrum. There are a couple of species of
Mortoniceras
and I'm not good enough to tell them apart so I will keep these labelled as
Mortoniceras sp.
Specimen #1
Specimen #2
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