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new paper about old dinosaur

A new dinosaur paper, recommended for all ankylosaur workers:

Pereda-Suberbiola, J.  1994.  Polacanthus (Ornithischia, Ankylosauria), a
transatlantic armoured dinosaur from the Early Cretaceous of Europe and
North America.  Palaeontographica Abteilung A 232: 133-159 + 5 plates.

For those who aren't up on this thryreophoran contraversy, there has been a
debate for a couple of decades whether or not Polacanthus Owen 1865 is the
same beast as Hylaeosaurus Mantell 1832.  [Hylaeosaurus, by the way, is the
often-forgotten third of Owen's original three dinosaurs, the others being
Megalosaurus and Iguanodon.]  Pereda-Suberbiola, like Kirkland and Blows,
believe that these are two different sorts of ankylosaurs; Coombs and
Maryanska do not.  In a related topic, the first three have argued that the
North American Hoplitosaurus marshi is really a species of Polacanthus.

This papers features some great anatomical plates and a modern
reconstruction of Polacanthus foxi.

Thomas R. Holtz, Jr.                                   
Vertebrate Paleontologist in Exile                  Phone:      703-648-5280
U.S. Geological Survey                                FAX:      703-648-5420
Branch of Paleontology & Stratigraphy
MS 970 National Center
Reston, VA  22092