Podcast 294 - The Motherload

Palaeo After Dark

The gang discusses two papers that look at two Lagerstätten (fossil localities of exceptional preservation). The first Lagerstätte is a unique complex early Triassic community found near the equator, and the second Lagerstätte is a collection of exceptional trace fossils from the Pennsylvanian. Meanwhile, James is convinced in the existence of a town that doesn’t exist, Amanda takes an unexpected break, and Curt once again needs to be redacted.

Up-Goer Fiver: (Curt Edition)

The friends talk about two papers that look at times when there was a lot of things in the rocks that we do not get in the rocks during most times, and these times can let us know that there were a lot more things were living at this time. The first paper talks about rocks during a time when usually there is not a lot going on because it was just after a time that most things died. Most rocks at this time do not show a lot of things living. These rocks are cool because they are just after the time almost everything died and they show the things that we know lived through that, and that they are all together in a way that looks like the groups of animals we see in rocks way later. The second paper looks at changes in rocks that are because animals move through or on the ground and that gets in the rocks. This area has a lot of these rocks with the bits of animals moving which lets us know a lot about what things were doing on land a long time ago.

References:

Dai, Xu, et al. "A Mesozoic fossil lagerstätte from 250.8 million years ago shows a modern-type marine ecosystem." Science 379.6632 (2023): 567-572.

Knecht, Richard J., et al. "Early Pennsylvanian Lagerstätte reveals a diverse ecosystem on a subhumid, alluvial fan." Nature Communications 15.1 (2024): 7876.