Jackson, Stephen T.; Webb, Robert S.; Anderson, Katharine H.; Overpeck, Jonathan T.; Webb III, Thompson; Williams, John W.; Hansen, Barbara C.S. (February 2000). "Vegetation and environment in Eastern North America during the Last Glacial Maximum". Quaternary Science Reviews. 19 (6): 489–508. Bibcode:2000QSRv...19..489J. doi:10.1016/s0277-3791(99)00093-1. ISSN0277-3791.
MANDER, L.; RODRIGUEZ, J.; MUELLER, P. G.; JACKSON, S. T.; PUNYASENA, S. W. (October 2014). "Identifying the pollen of an extinct spruce species in the Late Quaternary sediments of the Tunica Hills region, south-eastern United States". Journal of Quaternary Science. 29 (7): 711–721. Bibcode:2014JQS....29..711M. doi:10.1002/jqs.2745. ISSN0267-8179.
Birks, H. J. B.; Peglar, Sylvia M. (1980-10-01). "Identification of Picea pollen of Late Quaternary age in eastern North America: a numerical approach". Canadian Journal of Botany. 58 (19): 2043–2058. doi:10.1139/b80-237. ISSN0008-4026.
Koch, Paul L.; Barnosky, Anthony D. (December 2006). "Late Quaternary Extinctions: State of the Debate". Annual Review of Ecology, Evolution, and Systematics. 37 (1): 215–250. doi:10.1146/annurev.ecolsys.34.011802.132415. ISSN1543-592X.
Jackson, Stephen T.; Webb, Robert S.; Anderson, Katharine H.; Overpeck, Jonathan T.; Webb III, Thompson; Williams, John W.; Hansen, Barbara C.S. (February 2000). "Vegetation and environment in Eastern North America during the Last Glacial Maximum". Quaternary Science Reviews. 19 (6): 489–508. Bibcode:2000QSRv...19..489J. doi:10.1016/s0277-3791(99)00093-1. ISSN0277-3791.
MANDER, L.; RODRIGUEZ, J.; MUELLER, P. G.; JACKSON, S. T.; PUNYASENA, S. W. (October 2014). "Identifying the pollen of an extinct spruce species in the Late Quaternary sediments of the Tunica Hills region, south-eastern United States". Journal of Quaternary Science. 29 (7): 711–721. Bibcode:2014JQS....29..711M. doi:10.1002/jqs.2745. ISSN0267-8179.
Jackson, Stephen T.; Webb, Robert S.; Anderson, Katharine H.; Overpeck, Jonathan T.; Webb III, Thompson; Williams, John W.; Hansen, Barbara C.S. (February 2000). "Vegetation and environment in Eastern North America during the Last Glacial Maximum". Quaternary Science Reviews. 19 (6): 489–508. Bibcode:2000QSRv...19..489J. doi:10.1016/s0277-3791(99)00093-1. ISSN0277-3791.
MANDER, L.; RODRIGUEZ, J.; MUELLER, P. G.; JACKSON, S. T.; PUNYASENA, S. W. (October 2014). "Identifying the pollen of an extinct spruce species in the Late Quaternary sediments of the Tunica Hills region, south-eastern United States". Journal of Quaternary Science. 29 (7): 711–721. Bibcode:2014JQS....29..711M. doi:10.1002/jqs.2745. ISSN0267-8179.
Birks, H. J. B.; Peglar, Sylvia M. (1980-10-01). "Identification of Picea pollen of Late Quaternary age in eastern North America: a numerical approach". Canadian Journal of Botany. 58 (19): 2043–2058. doi:10.1139/b80-237. ISSN0008-4026.
Koch, Paul L.; Barnosky, Anthony D. (December 2006). "Late Quaternary Extinctions: State of the Debate". Annual Review of Ecology, Evolution, and Systematics. 37 (1): 215–250. doi:10.1146/annurev.ecolsys.34.011802.132415. ISSN1543-592X.