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4UdM4i54nIE • New Fossil Discovery Offers Glimpse into the Day the Dinosaurs Died | NOVA | PBS
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Language: en
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basically get a snapshot at the time
that all these critters were dying I
think of this is that the
paleontological discovery of the century
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essentially what you're looking at is a
cross-section of what was alive at the
time and you're looking at a
moment-by-moment record of conditions
right after impact
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massive earthquake immense landslides
and tsunamis were tidal waves that
radiated across the Gulf of Mexico Basin
and for those of us in the United States
incursions of flood waters upon us
economy
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DePalma pride out the region of the
gills and there was a collection of
tektites stuck in the gills right there
on the spot and from then on I was
totally convinced that he had something
fantastic in the area what we see is
these ejecta be these ejecta mural
caught in the gills of the fish so that
shows that most of these fish were alive
right up until the time that they were
buried in the month they were entombed
relatively instantaneously that's why
they're so well preserved and
three-dimensionally preserve and that's
how we know that this was a very rapid
event
this right and the research actually
directly applies to what we've got going
on today because this impact is one of
our only testbed to see how the world
ecology responds the major natural
hazards an extinction level event lots
of lots of open questions to answer all
the beautiful observations we have we're
now just at the beginning