, 1995. Upper Placentian-Branchian Series of Mainland Nova Scotia (Middle-Upper Lower Cambrian): faunas, Paleoenvironments, and Stratigraphic Revision. Journal of Paleontology 69, 475-495.
, 1995. Precambrian-Cambrian Boundary Global Stratotype Ratified and a New Perspective of Cambrian Time: Comment and Reply. Geology 23, 285-286.
, 1995. Declining Importance of Trilobites in Ordovician Nearshore Paleocommunities; Dilution or Displacement?. Palaios 10, 75-79.
, 1994. New Constraint on the Division of Cambrian Time. Geology 22, 496-498. doi:10.1130/0091-7613(1994)022<0496:NCOTDO>2.3.CO;2
, 1994. Precambrian-Cambrian Boundary Global Stratotype Ratified and a New Perspective of Cambrian Time. Geology 22, 179-182. doi:10.1130/0091-7613(1994)022<0179:PCBGSR>2.3.CO;2
, 1994. Pseudopanderodus; Junior Synonym of Panderodus (Conodonta). Journal of Paleontology 68, 1165.
, 1996. Upper Lower Cambrian Depositional Sequence in Avalonian New Brunswick. Canadian Journal of Earth Sciences 33, 404-417. doi:10.1139/e96-030
, 1998. Avalon 1997 - The Cambrian Standard. Third International Field Conference of the Cambrian Chronostratigraphy Working Group and I.G.C.P. Project 366 (Ecological Aspects of the Cambrian Radiation).. New York State Museum BulletinThe University of the State of New York, Albany, New York.
, 1998. Cambrian Subdivisions and Correlations: Introduction. Canadian Journal of Earth Sciences 35, 321, 322. doi:10.1139/e98-013
, 1998. Duration of the Early Cambrian: U-Pb Ages of Volcanic Ashes from Avalon and Gondwana. Canadian Journal of Earth Science 35, 329-338. doi:10.1139/e97-107