Rightly or wrongly, dinosaurs are
poster children for the CretaceousTertiary
(K-T) extinction. The rate and
cause of their extinction, however,
has been contentious, at least in part
because of their rarity. Nonetheless,
significant data have accumulated to
indicate that the dinosaur extinction,
in North America at least, was geologically
instantaneous. The evidence
comes from field studies in geologically
disparate settings involving the
reconstruction of dinosaur stratigraphic
ranges as well as community structure
in the Late Cretaceous, and from quantitative
studies of the po
Rightly or wrongly, dinosaurs areposter children for the CretaceousTertiary(K-T) extinction. The rate andcause of their extinction, however,has been contentious, at least in partbecause of their rarity. Nonetheless,significant data have accumulated toindicate that the dinosaur extinction,in North America at least, was geologicallyinstantaneous. The evidencecomes from field studies in geologicallydisparate settings involving thereconstruction of dinosaur stratigraphicranges as well as community structurein the Late Cretaceous, and from quantitativestudies of the po
การแปล กรุณารอสักครู่..