Since Disaster Dave is too chickenshit to define "macroevolution"
(knowing he will be nailed as soon as he does), I'll define it for him:
tinyurl.com/8bm23
"Evolution on a species level and extinction and at higher taxonomic
classifications (appearance and disappearance of genuses, families,
orders,
etc.)."
everythingbio.com/textbooks/search.php?searchFor=macroevolution
"In other words, macroevolution (the large morphological changes seen
between species, classes, and phyla) could be explained by the
mechanisms of
microevolution, the "differential adaptive values of genotypes or
deviations
from random mating or both these factors acting together"
dictionary.reference.com/search?q=macroevolution
"Large-scale evolution occurring over geologic time that results in the
formation of new taxonomic groups."
Three separate definitions define so-called macroevolution to be the
same as microevolution, but over a longer time period - a period of
time long enough to split a species and eventually generate higher
taxonomic groups.
Here's information regarding some 530 instances of observed speciation:
http://www.talkorigins.org/faqs/speciation.html
Budikka
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