Ken Lacovara
👤 PersonAppearances Over Time
Podcast Appearances
a bone bed that is from the exact moment of the asteroid impact. In fact, it's the only place in the world where you can see a complete death assemblage of many, many species that are victims of that event with the fallout from the asteroid.
but just from the ash, just from the material that falls from the sky. To date, the fossil occurrences in that layer have been very, very meager. There's some fish scales in Belgium. There's a pile of paddlefish and a dinosaur leg in North Dakota. That's about it. This site here that you're looking at has an entire collapsed ecosystem at that moment.
but just from the ash, just from the material that falls from the sky. To date, the fossil occurrences in that layer have been very, very meager. There's some fish scales in Belgium. There's a pile of paddlefish and a dinosaur leg in North Dakota. That's about it. This site here that you're looking at has an entire collapsed ecosystem at that moment.
but just from the ash, just from the material that falls from the sky. To date, the fossil occurrences in that layer have been very, very meager. There's some fish scales in Belgium. There's a pile of paddlefish and a dinosaur leg in North Dakota. That's about it. This site here that you're looking at has an entire collapsed ecosystem at that moment.
We've recovered over 100,000 fossils representing over 100 species, and they are interbedded with the fallout from that impact that happened off the coast of Mexico. So we have little glass spherules that rain down from the sky, little grains of what we call shocked quartz, and we have a spike in the level of the metal iridium, which is very, very rare in the crust of the earth, but very
We've recovered over 100,000 fossils representing over 100 species, and they are interbedded with the fallout from that impact that happened off the coast of Mexico. So we have little glass spherules that rain down from the sky, little grains of what we call shocked quartz, and we have a spike in the level of the metal iridium, which is very, very rare in the crust of the earth, but very
We've recovered over 100,000 fossils representing over 100 species, and they are interbedded with the fallout from that impact that happened off the coast of Mexico. So we have little glass spherules that rain down from the sky, little grains of what we call shocked quartz, and we have a spike in the level of the metal iridium, which is very, very rare in the crust of the earth, but very
much more abundant in asteroids. And so this makes this the best window on the planet into that pivotal, calamitous moment that wiped out the dinosaurs and really made the modern world as we know it.
much more abundant in asteroids. And so this makes this the best window on the planet into that pivotal, calamitous moment that wiped out the dinosaurs and really made the modern world as we know it.
much more abundant in asteroids. And so this makes this the best window on the planet into that pivotal, calamitous moment that wiped out the dinosaurs and really made the modern world as we know it.
Well, I mean, it was everywhere. We happen to have those deposits preserved here and then... We had a quarry here because of the mining operation since the first one of those that have been found.
Well, I mean, it was everywhere. We happen to have those deposits preserved here and then... We had a quarry here because of the mining operation since the first one of those that have been found.
Well, I mean, it was everywhere. We happen to have those deposits preserved here and then... We had a quarry here because of the mining operation since the first one of those that have been found.
Oh, there must be. You could probably go under the Lowe's and find these same deposits or the Chick-fil-A.
Oh, there must be. You could probably go under the Lowe's and find these same deposits or the Chick-fil-A.
Oh, there must be. You could probably go under the Lowe's and find these same deposits or the Chick-fil-A.
Well, I kind of do, but, you know. It's taken us 14 years to excavate only 250 square meters. And these fossils are very important to science. And so we excavate these for ourselves, but for future scientists as well.
Well, I kind of do, but, you know. It's taken us 14 years to excavate only 250 square meters. And these fossils are very important to science. And so we excavate these for ourselves, but for future scientists as well.
Well, I kind of do, but, you know. It's taken us 14 years to excavate only 250 square meters. And these fossils are very important to science. And so we excavate these for ourselves, but for future scientists as well.
And so we have to document everything very carefully, curate the material very carefully, make sure it's preserved forever so that scientists 200 years from now can study these same fossils.