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#KT macro and micro plant extinction, shocked quartz & Ir anomaly, Great Plains @leafdoctor et al 1989 http://t.co/I2rlMlyeDd #KTImpactRecap
#KT macro and micro plant extinction, shocked quartz & Ir anomaly, Great Plains @leafdoctor et al 1989 http://t.co/I2rlMlyeDd #KTImpactRecap
#KT macro and micro plant extinction, shocked quartz & Ir anomaly, Great Plains @leafdoctor et al 1989 http://t.co/I2rlMlyeDd #KTImpactRecap
#KT macro and micro plant extinction, shocked quartz & Ir anomaly, Great Plains @leafdoctor et al 1989 http://t.co/I2rlMlyeDd #KTImpactRecap