Picea critchfieldii Jackson & Weng, 1999
Taxonomy & Nomenclature
Conservation Status
Extinct
Last record: Late Pleistocene
Distribution
North America
Biology & Ecology
Hypodigm
Media
References
Original scientific description:
Jackson, Stephen T. and Weng, Chengyu. (1999). Late Quaternary extinction of a tree species in eastern North America. Proc. Natl. Acad. Sci. USA. 96(24): 13847-13852.
Other references:
Holmes, Branden. (2021). What's Lost and What Remains: The Sixth Extinction in 100 Accounts (eBook). Self published.
Mander, L. et al. (2014). Identifying the pollen of an extinct spruce species in the Late Quaternary sediments of the Tunica Hills region, south-eastern United States. J. Quaternary Sci. 29(7): 711-721. [Abstract]
http://www.torreyaguardians.org/pro-draft-martin-edits.pdf
http://vanishingflora.proboards.com/thread/3083/picea-critchfieldii