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NeoceratopsianFossil, Ornithischian Dinosaur
Dr. Amy Balanoff - Columbia University
Dr. Mark A. Norell, Dr. Gerald Grellet-Tinner, and Dr. Matthew R. Lewin
Neoceratopsian
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skull
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Institute of Geology, Ulaan Baatar, Mongolia (IGM 100/2010)

Image processing: Dr. Amy Balanoff
Publication Date: 28 Mar 2008

ITIS TNS Google MSN

The imagery on this page was the basis for a paper entitled Digital Preparation of a Probable Neoceratopsian Preserved Within an Egg, with Comments on Microstructural Anatomy of Ornithischian Eggshells, by A.M. Balanoff, M.A. Norell, G. Grellet-Tinner, and M.R. Lewin (Naturwissenschaften 95:493-500). The abstract is as follows:

       We describe the first known embryo of a neoceratopsian dinosaur, perhaps the most ubiquitous        Laurasian group of Cretaceous dinosaurs, which is preserved completely labeled elementsenclosed within an egg. This        specimen was collected from Late Cretaceous beds of southern Mongolia,        which commonly preserve fossils of the neoceratopsian, Yamaceratops        dorngobiensis. The small egg was scanned using high-resolution X-ray        computed tomography (HRCT) and digitally prepared from the matrix. The        preserved and imaged elements support a diagnosis of the embryo to        Neoceratopsia, and allow preliminary observations of ontogenetic        transformations within this group. The addition of an embryo also adds another important data point        to the already impressive postnatal ontogenetic series that are available for this clade.

About the Species

This specimen was made available to the University of Texas High-Resolution X-ray CT Facility for scanning by Dr. Matthew Lewin of the UCSF Medical Center. Funding was provided by Dr. Lewin.

Egg and scan

About this Specimen

This specimen was scanned by Matthew Colbert on 3 February 2004 along the 'coronal' (long) axis for a total of 1296 slices. Each 1024 x 1024 pixel slice is 0.036 mm thick, with an interslice spacing of 0.036 mm and a field of reconstruction of 32 mm.

About the
Scan

Literature

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Literature
& Links
spin with fade

Click on the thumbnail to the left for a yaw rotation animation (5.9 mb) of the egg rotating as the matrix fades.

isolated hindlimb

Click on the thumbnail to the left for a roll rotation animation (1.4 mb) of the isolated hindlimb elements.

isolated hindlimb

Click on the thumbnail to the left for a yaw rotation animation (2.3 mb) of the isolated hindlimb elements.

Additional
Imagery

To cite this page: Dr. Amy Balanoff, Dr. Mark A. Norell, Dr. Gerald Grellet-Tinner, and Dr. Matthew R. Lewin, 2008, "Neoceratopsian" (On-line), Digital Morphology. Accessed November 25, 2014 at http://digimorph.org/specimens/neoceratopsian_egg/.

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