Lazarus taxa

we use fossil species to provide information of sedimentation rates and time. We like fossils that demonstrate wide geographic areas and brief time periods of their existence. So extending the ranges and times of Burgess -like fossils help us understand the points where continents joined before the last breakup.
A Lazarus Species is one that actually is living today . like the Coelocanth. I wouldnt really call a Burgess Fossil that happens to occur in the early Ordovician as "Lazarutian". Id more call it an "index fossil " of the Cambro=Ordovician period and see whether theres not a connection in C/O resource "plays"

All these findings have applications in the real world

Thanks. Youtubes are often not spot on, but sometimes they can open up a discussion that sorts out a topic for us.

truly. I am going to get more on the Hallucinogenia-like fossil that was originally named from the Burgess and found again at the other site. The sediments look interesting from an organics basis.

Alligators , while not true "Lazarus critters" , have extremely long fossil records and they are still among us. Theyve changed very little since the Cretaceous when they apeared out of the crocodile clade

We find such (like Diplocynodons ) here a lot in the Messel pit

these are all "Lagerstatten" where the sediments are usually so fine that minute structures of organisms are preserved (often soft tissues too)