Wife Inspection @ Bossa Nova Civic Club - 18 Mar feat. CMD+JAZMINE, microfossil

#SESH #CMDJAZMINE #microfossil

https://sesh.sx/e/1714369

Today under the microscope aged ~155.000.000 years old: The foraminifera Epistomina ornata (I think) from the Kimmeridgian, Dorset coast, UK. See more at https://foraminifera.eu/single.php?no=1025377&aktion=suche

#foraminifera #microfossil #micropalaeontology #Jurassic #microscopy

Dr Erica Barlow picked up a rock by chance 10 years ago. It might hold the oldest form of complex life on Earth https://news.unsw.edu.au/en/erica-picked-up-a-rock-10-years-ago-it-might-hold-the-oldest-form-of-complex-life-on-earth

Distinctive #microfossil supports early #Paleoproterozoic rise in complex cellular organisation https://onlinelibrary.wiley.com/doi/10.1111/gbi.12576

"the age estimate coincides with the #GreatOxidationEvent... The sharp rise of oxygen has been linked to the development of complex life on Earth, but we haven’t had the fossil record to demonstrate this – until now."

Many people think the history of the Earth is hard to decipher. The geological record jumbles everything up. We set out to fact-check this in my ERC Starting Grant MindTheGap. Focusing on the mode of evolution, because that is something that we can only glean from long records, longer than anything accessible to observation or experimentation today.

Thanks to collaboration with Peter Burgess we used forward models to simulate formation of carbonate rocks and see how completeness and stratigraphic resolution affect the reconstructions. Guess what! The geological record is 👌🏻 With a bit of understanding of #sedimentology and #physics we can test is with computer experiments and it turns out even very patchy rock strata will let us reconstruct the correct mode of evolution. This opens a lot of possibilities, especially for the #microfossil community: your data is priceless to understand #microevolution.

Check out the results at https://lnkd.in/eeiSuRwP

Also a big shoutout to an excellent review process at PCI Paleo, the thoughtful editors and reviewers, and to the lead author Niklas Hohmann for #code #reproducibility effort that meets the most stringent standards. Check out our software at https://lnkd.in/eJkwhhuh

#evolution #paleontology #paleobiology #UtrechtUniversity

#Plankton evidence reveals a seasonally ice-free ocean during the Last Interglacial https://phys.org/news/2023-08-plankton-evidence-reveals-seasonally-ice-free.html #protists #forams

A seasonally ice-free Arctic Ocean during the Last #Interglacial: Flor Vermassen et al. https://www.nature.com/articles/s41561-023-01227-x

"A subpolar species associated with #Atlantic water expanded far into the #Arctic Ocean during the #LastInterglacial, analysis of #microfossil content of #SedimentCores reveals. This implies that summers in the #Arctic were ice free during this period."

Applications are now open for the Leanne Armand Travel Award. The award honours the late Prof. Leanne Armand, and aims to facilitate Australia-based ECRs and MCRs to become microfossil experts. Applications are due COB September 15, more details at the link below.

https://aqua.org.au/sample-page/the-leanne-armand-travel-award/

#AusQuaternary #palaeontology #microfossil #diatom #palaeoclimate #ECR #MCR #PhDChat