Kingdom Plantae Class Pinopsida Family Pinaceae Rank Species | Division Pinophyta Order Pinales Genus Picea | |
Similar Picea martinezii, Picea spinulosa, Picea maximowiczii, Picea retroflexa, Picea chihuahuana | ||
Picea critchfieldii, the Critchfield's spruce, is a species of spruce that became extinct in the Late Quaternary extinction event. It grew in much of eastern North America from 28,000 BP to 15,000 BP. It was a common tree in lower Mississippi River valley forests.
References
Picea critchfieldii Wikipedia(Text) CC BY-SA