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Westrop, S.R., Landing, E., Ludvigsten, R., 1981. Upper Cambrian and Lower Ordovician Biostratigraphy, Jasper National Park, Alberta, The Cambrian System in the southern Canadian Rocky Mountains, Alberta and British Columbia. Guidebook for Field Trip 2. Second International Symposium on the Cambrian System. Golden, Colorado, Golden, Colorado.
Westrop, S.R., Landing, E., Ludvigsten, R., 1981. Upper Cambrian and Lower Ordovician Biostratigraphy, Jasper National Park, Alberta, The Cambrian System in the southern Canadian Rocky Mountains, Alberta and British Columbia. Guidebook for Field Trip 2. Golden, Colorado.
Landing, E., Westrop, S.R., VanAller Hernick, L., 2003. Uppermost Cambrian Lower Ordovician Faunas and Laurentian Platform Sequence Stratigraphy, Eastern New York and Vermont. Journal of Paleontology 77, 78-98. doi:10.1666/0022-3360(2003)077<0078:UCLOFA>2.0.CO;2
Landing, E., Westrop, S.R., 1996. Upper Lower Cambrian Depositional Sequence in Avalonian New Brunswick. Canadian Journal of Earth Sciences 33, 404-417. doi:10.1139/e96-030
Adrain, J.M., Westrop, S.R., Karin, T.S., Landing, E., 2014. Trilobite Biostratigraphy of the Stairsian Stage (upper Tremadocian) of the Ibexian Series, Lower Ordovician, Western United States. Memoirs of the Associaiton of Australasian Palaeontologists 45, 167–214.
Landing, E., Adrian, J.M., Westrop, S.R., Kroger, B., 2012. Tribes Hill-Rochdale Formations in East Laurentia: Proxies for Early Ordovician (Tremadocian) Eustasy on a Tropical Passive Margin (New York and West Vermont). Geological Magazine 149, 93-123. doi:10.1017/S0016756811000598
Adrain, J.M., Westrop, S.R., Landing, E., Fortey, R.A., 2001. Systematics of the Ordovician Trilobites Ischyrotoma and Dimeropygiella, With Species from the Type Ibexian Area, Western USA. Journal of Paleontology 75, 947-971. doi:10.1666/0022-3360(2001)075<0947:SOTOTI>2.0.CO;2
Landing, E., Westrop, S.R., Bowring, S.A., 2013. Reconstructing the Avalonia Palaeocontinent in the Cambrian: A 519 Ma Caliche in South Wales and Transcontinental Middle Terreneuvian Sandstones. Geology Magazine 150, 1022-1046. doi:10.1017/S0016756813000228
Davidek, K.E., Landing, E., Bowring, S.A., Westrop, S.R., Rushton, A.W.A., Fortey, R.A., Adrian, J.M., 1998. New Uppermost Cambrian U-Pb Date from Avalonian Wales and Age of the Cambrian-Ordovician Boundary. Geological Magazine 135, 305-309.
Kim, D.K., Westrop, S.R., Landing, E., 2002. Middle Cambrian (Acadian Series) Conocorhyphid and Paradoxidid Trilobites from the Upper Chamberlain's Brook Formation, Newfoundland and New Brunswick. Journal of Paleontology 76, 822-842. doi:10.1666/0022-3360(2002)076<0822:MCASCA>2.0.CO;2
Westrop, S.R., Knox, L.A., Landing, E., 1993. Lower Ordovician (Ibexian) Trilobites from the Tribes Hill Formation, Central Mohawk Valley, New York State. Canadian Journal of Earth Sciences 30, 1618-1633.
Landing, E., Westrop, S.R., 2006. Lower Ordovician Faunas, Stratigraphy, and Sea-level History of the Middle Beekmantown Group, Northeastern New York. Journal of Paleontology 80, 958-980. doi:10.1666/0022-3360(2006)80[958:LOFSAS]2.0.CO;2
Westrop, S.R., Landing, E., 2000. Lower Cambrian (Branchian) Trilobites and Biostratigraphy of the Hanford Brook Formation, Southern New Brunswick. Journal of Paleontology 74, 858-878. doi:10.1666/0022-3360(2000)074<0858:LCBTAB>2.0.CO;2
Westrop, S.R., Landing, E., 2011. Lower Cambrian (Branchian) Eodiscoid Trilobites from the Lower Brigus Formation, Avalon Peninsula, Newfoundland, Canada. Memoirs of the Association of Australasian Palaeontologists 42, 209-262.
Landing, E., Westrop, S.R., Kroger, B., English, A.M., 2011. Left Behind--Delayed Extinction and a Relict Trilobite Fauna in the Cambrian--Ordovician Boundary Succession (East Laurentian Platform, New York). Geological Magazine 148, 529-557. doi:10.1017/S0016756810000919
Landing, E., Westrop, S.R., Adrian, J.M., 2011. The Lawsonian Stage - the Eoconodontus Notchpeakensis FAD and HERB Carbon Isotope Excursion Define a Globally Correlatable Terminal Cambrian Stage. Bulletin of Geosciences 86, 621-640. doi:10.3140/bull.geosci.1251
Landing, E., Westrop, S.R., 2015. Late Cambrian (middle Furongian) Shallow-Marine Dysoxic Mudstone with Calcrete and Brachiopod–Olenid–Lotagnostus Faunas in Avalonian Cape Breton Island, Nova Scotia. Geological Magazine 152, 973-992. doi:10.1017/S001675681400079X
Landing, E., Westrop, S.R., Kim, D.H., 2003. First Middle Ordovician Biota from Southern New Brunswick: Stratigraphic and Tectonic Implications for the Evolution of the Avalon Continent. Canadian Journal of Earth Sciences 40, 715-730. doi:10.1139/e03-009
Landing, E., Bowring, S.A., Davidek, K.L., Westrop, S.R., Geyer, G., Heldmaier, W., 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
Westrop, S.R., Tremblay, J.V., Landing, E., 1995. Declining Importance of Trilobites in Ordovician Nearshore Paleocommunities; Dilution or Displacement?. Palaios 10, 75-79.