Dr Leila D'Souza
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lcd17.bsky.social
Dr Leila D'Souza
@lcd17.bsky.social
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Curator | Fossil Invertebrates | Annelida, Bryozoa, Porifera, Trace Fossils & 'Problematica' | Natural History Museum London
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Reposted by Dr Leila D'Souza
chalksea.bsky.social
#FossilFriday. In 1950, 10-year-old Stephen found a fossil #sponge on the beach at Seaford, East Sussex & donated it @nhm-london.bsky.social. 75 years later, Stephen visited us to see the specimen! Thanks to all the #ChalkHeroes who donated their finds over the years and make our research possible.
A man holding up an ornately written certificate A flint nodule containing a fossil sponge in a white box. Two labels identify it as Plinthosella from the upper chalk, Seaford Sussex
August 1, 2025 at 9:55 AM
Reposted by Dr Leila D'Souza
paleoadiel.bsky.social
‼️Research Alert‼️ Incredible mistakes by predatory gastropods: holes made from the inner side of a bivalve shell. 🙃 😃 First two instances from the fossil record. It's very rare though! Open access paper with Greg Dietl: doi.org/10.1017/jpa.... #FossilFriday #paleontology #fossil @almnh.bsky.social
January 9, 2025 at 10:23 PM
Reposted by Dr Leila D'Souza
chalksea.bsky.social
Sponges are very common in the #Cretaceous Chalk of the 🇬🇧 and their fossilised skeletons were probably important for silica cycling & formation of #flint nodules. This week we've been databasing and selecting 100 specimens for re-dating, helped by our regular volunteer Neil Ireland. #FossilFriday ⚒️🧪
A fossil sponge in white chalk matrix. A series of boxes containing fossil sponges - most preserved inside flint nodules. A man (Neil Ireland) is picking boxes out of a large wooden drawer. A close-up of a flint nodule containing the detailed impression of a fossil sponge.
January 17, 2025 at 9:49 AM