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RE: Propanoplosaurus, nodosaur hatchling natural mold from Maryland
> -----Original Message-----
> From: owner-DINOSAUR@usc.edu [mailto:owner-DINOSAUR@usc.edu]
> On Behalf Of Jaime Headden
> A hatchling holotype ...
What's more, a hatchling MOLD holotype: no bones about it...
Specimen has been on display at the Smithsonian in their local dinosaurs case
for a year or two.
Thomas R. Holtz, Jr.
Email: email@example.com Phone: 301-405-4084
Office: Centreville 1216
Senior Lecturer, Vertebrate Paleontology
Dept. of Geology, University of Maryland
Faculty Director, Science & Global Change Program, College Park Scholars
Mailing Address: Thomas R. Holtz, Jr.
Department of Geology
Building 237, Room 1117
University of Maryland
College Park, MD 20742 USA
> > Date: Thu, 8 Sep 2011 15:25:12 +0000
> > From: firstname.lastname@example.org
> > To: email@example.com
> > Subject: Propanoplosaurus, nodosaur hatchling natural mold from
> > Maryland
> > From: Ben Creisler
> > firstname.lastname@example.org
> > In the new issue of Journal of Paleontology:
> > Ray Stanford, David B. Weishampel and Valerie B. Deleon
> > (2011)
> > The First Hatchling Dinosaur Reported from the Eastern
> United States:
> > Propanoplosaurus marylandicus (Dinosauria:
> > Ankylosauria) from the Early Cretaceous of Maryland, U.S.A.
> > Journal of Paleontology 85(5):916-924.
> > http://www.bioone.org/doi/abs/10.1666/10-113.1
> > Abstract
> > Abundant and diverse dinosaur footprints have been
> discovered recently
> > on bedding surfaces of the Lower Cretaceous Patuxent Formation of
> > Maryland and Virginia.
> > Found along with those ichnofossils is a fossil preserved
> partially as
> > natural casts and partially as natural molds of a baby nodosaurid
> > ankylosaur so small as to justify interpreting it as a hatchling.
> > Despite the rather unusual type of preservation, the find
> is properly
> > termed a body fossil and not an ichnite, per se, because it records
> > not the action of an organism, but the body form and bone structure
> > (including partial articulation) of a dinosaur. We here name it
> > Propanoplosaurus marylandicus and provide a description of its
> > diagnostic characteristics. Although actual skeletal
> remains referable
> > to P. marylandicus have not been found in the Patuxent Formation,
> > other nodosaurids recognized from skeletal remains are
> known from both
> > the Lower and Upper Cretaceous strata of the Western
> Interior of North
> > America and Europe. P. marylandicus represents the only diagnostic
> > nodosaurid from the Early Cretaceous of the eastern U.S.A.,
> > information on growth patterns among nodosaurids, and is the first
> > direct evidence of a dinosaur hatchling and, deductively,
> nesting, on
> > the entire eastern seaboard