Chalk Sea Ecosystems project, investigating marine ecosystem response to Cretaceous climate change. Funded by NERC, based at Natural History Museum, London and UCL. Account curated by Dr James Witts, NHM (@jdwitts.bsky.social). 🔗 chalksea.co.uk
ChaSE Project
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We are at Lyme Regis #FossilFestival this weekend! Swing by the Hub to talk to our researchers and students about chalk sea #Cretaceous ecosystems and play our game 'pin the tail on the chalk fish'!
#EGU26 - check out the poster on our work presented by Dr Debs Tangunan: 'Unlocking UK Chalk macrofossil collections using calcareous nannofossil biostratigraphy: Insights into Late Cretaceous ecosystem change, resilience, and extinction' at booth X.350 in Hall 3 this morning.
#MolluscMonday is all about rudists! These unusual bivalve molluscs were very common in the Late #Cretaceous, especially in tropical settings around the Tethys Ocean. Individual or conjoined specimens occasionally appear in the UK Chalk but are often poorly dated.
Big #FossilFriday thanks to our curatorial colleagues @nhm-london.bsky.social who have been helping our project curate and register #chalk specimens! This week dealing with hundreds of cidaroid spines - these were originally attached to echinoids (sea urchins) which lived on the chalk seafloor.
Correlation of the lower and middle Turonian chalks of south-west England and north-west France - condensation towards the Cornubian and Armorican massifs by Andy Gale
In Proceedings of the Geologists' Association, vol 137, issue 1, Feb 2026: www.sciencedirect.com/science/arti...
Echinoderm and belemnite fossils in Ulster Chalk from Northern Ireland. This material is used for seating in @nhm-london.bsky.social Evolution Garden in South Kensington #fossilfriday #chalk #urbangeology
What happens after a forest dies, a coral reef bleaches, or an oyster bed collapses?
A study of 10 ecosystems reveals that they carry memory. The material remains of foundation species can shape resilience, recovery, or collapse for decades in a changing climate.
www.science.org/doi/10.1126/...
#FossilFriday at #SVP2025 today! Emma Bernard will be talking about dating the amazing @nhm-london.bsky.social chalk fish collections at 09:30 in Hall 4. Then check out posters by Twitchett/Underwood and Kaia Spence on new #chalk sharks & coelacanth size in Poster Session III, Hall 3 (4:30 - 6:30).
A great time was had at the 'Festival of Geology' today! Thanks @geolassoc.bsky.social and @geolsoc.bsky.social for having us, and to all the enthusiastic visitors who were interested in our work. Thanks especially to @spissatella.bsky.social and Tessa for sharing your knowledge and helping out.
Emma Bernard presenting her research as part of @chalksea.bsky.social that samples chalk nannofossils fossils from over 1000 Cretaceous fossil fish specimens at @nhm-london.bsky.social to significantly clarify their stratigraphic context.
Meeting Room Hall 4
#2025SVP
#SVP2025
The dead remains of habitat-forming organisms can have powerful influences on the resilience of the ecosystems they inhabit.
www.science.org
ChaSE Project
ChaSE Project
ChaSE Project
ChaSE Project
The Geologists' Association
ChaSE Project
ChaSE Project
Ruth Siddall
Ian Hall
Marc Jones
If you're in #London today then come along to the @geolassoc.bsky.social FREE 'Festival of Geology' @geolsoc.bsky.social on Piccadilly. We'll be there showcasing some #chalk fossils and talking about our work on #Cretaceous ecosystems and environmental change. Come and say hello!
