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Published Papers and Abstracts
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Published Papers and Abstracts

2004:  SZAJNA, M.J.,   HARTLINE, B.W.,   and  SIMPSON, E.L.,   PRELIMINARY REPORT ON DINOSAUR TRACKS AND ASSOCIATED FAUNA FROM THE LATE TRIASSIC LOCKATONG FORMATION NEAR COLLEGEVILLE, PENNSYLVANIA.         Geological Society of America, Abstracts with Programs,  36  (2) : 96.

2004:  NASE, A.M.,  RHOADS, C.L.,  ROSENBERGER, J.E.,  SZAJNA, M.J.,  HARTLINE, B.W.,  and  SIMPSON, E.L.  DEPOSITIONAL SETTING AND TAPHONOMY OF PHYTOSAUR- BEARING BEDS, TRIASSIC LOCKATONG FORMATION NEAR COLLEGEVILLE, PENNSYLVANIA.       Geological Society of America, Abstracts with Programs,  36  (2) : 96.

2003:  M.J. Szajna  and  B.W. Hartline. A new vertebrate footprint locality from the Late Triassic Passaic Formation near Birdsboro, Pennsylvania.  In  P.M. LeTourneau  &  P.E. Olsen (eds.).  The Great Rift Valleys of Pangea in Eastern North America,  Volume 2:  Sedimentology, Stratigraphy, and  Paleontology.  Columbia University Press, New York  264-272 
 

2003:  Olsen, P.E.,  H.-D. Sues,  E.C. Rainforth,  D.V. Kent,  C. Koeberl,  H. Huber,  A. Montanari,  S.J. Fowell,  M.J. Szajna and  B.W. Hartline. Response to comment on "Ascent of dinosaurs linked to Ir anomaly and "fern spike" at Triassic- Jurassic boundary".  Science 301:  169.

2002:  P.E. Olsen,1  D.V. Kent,  H.-D. Sues,  C. Koeberl,  H. Huber,  A. Montanari,  E.C. Rainforth,  S.J. Fowell,  M.J. Szajna,  B.W. Hartline. Ascent of dinosaurs linked to Iridium anomaly at the Triassic- Jurassic boundary.  Science,  296,  1305 - 1307.

1998:  Olsen, P.E.,  H.-D. Sues,  E.C. Rainforth,  B. Hartline and M. Szajna.1998.  New tetrapod bone assemblage near Triassic- Jurassic boundry, southeastern PA.  (Late Rhaetian, Newark Basin).  In D.L. Wolberg, K. Gittis, S. Miller,  L. Carey and A. Raynore (eds.),  The Dinofest Symposium Abstracts,  1998,  addendum.

1996:  Michael J. Szajna  and  ShayMaria M. Silvestri.  A new occurrence of the ichnogenus Brachychirotherium:  implications for the Triassic- Jurassic mass extinction event.  In the Continental Jurassic edited by M. Morales:  New Mexico Museum of Natural History and Science Bulletin No. 4.

1993:  ShayMaria M. Silvestri and  Michael J. Szajna.  Biostratigraphy of vertebrate footprints in the Late Triassic section of the Newark Basin, Pennsylvania: reassessment of stratigraphic ranges.  In the Nonmarine Triassic edited by S.G. Lucas and M. Morales: New Mexico Museum of Natural History and Science Bulletin No.3,  p. 439-445.