Dr Mariem Saavedra-Pellitero 🔬 (@mariemsaavedra) 's Twitter Profile
Dr Mariem Saavedra-Pellitero 🔬

@mariemsaavedra

(She/her) Senior Lecturer at @portsmouthuni ¦ Coccolithophore micropaleontologist with interest in Palaeoclimate and Paleoceanography

ID: 1131299675548585984

calendar_today22-05-2019 20:43:55

1,1K Tweet

562 Followers

536 Following

Hisham (@h_eecham) 's Twitter Profile Photo

Desmids are single-celled freshwater algae with remarkable shapes and ornamentations. This species, Micrasterias rotata, is one of the larger ones and mainly lives in acidic bogs, making it rare. This time-lapse shows a Micrasterias undergoing cell division. Desmids belong to

Dr Mariem Saavedra-Pellitero 🔬 (@mariemsaavedra) 's Twitter Profile Photo

Yesterday, I had a incredibly great time talking in the Pint of Science UK at the Barley Mow Pub (pintofscience.co.uk/event/cleaning…). Thanks to everybody who attended, and to the organisers for inviting us to share our passion for #coccolithophores!! 🌊🔬 University of Portsmouth

José Manuel Gasca (@gascapauer) 's Twitter Profile Photo

Aguante Argentina✊🇦🇷 Apoyo a la ciencia y al pueblo argentino... "La situación de la ciencia y técnica argentinas es muy crítica..." Comparto carta difundida por la Asociación Paleontológica Argentina (en el texto-fotos)

Aguante Argentina✊🇦🇷
Apoyo a la ciencia y al pueblo argentino...
"La situación de la ciencia y técnica argentinas es muy crítica..." Comparto carta difundida por la Asociación Paleontológica Argentina (en el texto-fotos)
GEOTRACES (@geotraces) 's Twitter Profile Photo

New Job Opportunity! Postdoctoral Research Opportunity in Arctic Trace Metal Biogeochemistry, LEMAR/IUEM, Brest, France geotraces.org/postdoc-2025-l… #sciencejobs #Postdoc #biogeochemistry

New Job Opportunity!
Postdoctoral Research Opportunity in Arctic Trace Metal Biogeochemistry, LEMAR/IUEM, Brest, France
geotraces.org/postdoc-2025-l…
#sciencejobs #Postdoc #biogeochemistry
Megan Jacobs (@meganjpalaeo) 's Twitter Profile Photo

Very excited to announce my new book (which I've been working quietly on for the last few years) is available for pre orders! All information and how to order is through this link- crowdfunder.co.uk/p/iowfossilbook

Very excited to announce my new book (which I've been working quietly on for the last few years) is available for pre orders! 

All information and how to order is through this link- 
crowdfunder.co.uk/p/iowfossilbook
IRNASA-CSIC (@irnasa_csic) 's Twitter Profile Photo

🇬🇧🔀 Our researcher Blanca Ausín (Passage ERC) is visiting University of Portsmouth, invited by Dr Dr Mariem Saavedra-Pellitero 🔬 to collaborate on an ongoing project. She’s just delivered a seminar and they’re now analyzing samples under the electron microscope. Exciting cross‑institutional work! 👏👏

🇬🇧🔀 Our researcher Blanca Ausín (<a href="/PassageERC/">Passage ERC</a>) is visiting <a href="/portsmouthuni/">University of Portsmouth</a>, invited by Dr <a href="/MariemSaavedra/">Dr Mariem Saavedra-Pellitero 🔬</a> to collaborate on an ongoing project. She’s just delivered a seminar and they’re now analyzing samples under the electron microscope. Exciting cross‑institutional work! 👏👏
Passage ERC (@passageerc) 's Twitter Profile Photo

See these tiny balls? They're different species of coccolithophores, calcifying algae 30x smaller than a grain of sand! 🔬 They play a MASSIVE role in the carbon cycle 🧵👇 📸SEM image by Joe Dunlop @PortsmouthUni w/ Dr Mariem Saavedra-Pellitero 🔬

See these tiny balls? They're different species of coccolithophores, calcifying algae 30x smaller than a grain of sand! 🔬
They play a MASSIVE role in the carbon cycle 🧵👇
📸SEM image by Joe Dunlop @PortsmouthUni w/ <a href="/MariemSaavedra/">Dr Mariem Saavedra-Pellitero 🔬</a>
Passage ERC (@passageerc) 's Twitter Profile Photo

¿Ves estas bolitas? Son cocolitóforos, ¡algas con concha 30 veces más pequeñas que un grano de arena! Pero no subestimes su tamaño… juegan un GRAN papel en el clima 🧵👇 📷 Foto de SEM tomada por Joe Dunlop @PortsmouthUni y Dr Mariem Saavedra-Pellitero 🔬

¿Ves estas bolitas? Son cocolitóforos, ¡algas con concha 30 veces más pequeñas que un grano de arena!
Pero no subestimes su tamaño… juegan un GRAN papel en el clima 🧵👇
📷 Foto de SEM tomada por Joe Dunlop @PortsmouthUni y
<a href="/MariemSaavedra/">Dr Mariem Saavedra-Pellitero 🔬</a>
Sonia Camina (@soniacamina) 's Twitter Profile Photo

Lyme Regis Fossil Festival with the one and only #Spinosaurus, our golden star at the University of Portsmouth #Palaeofun #UoPalaeo

Lyme Regis Fossil Festival with the one and only #Spinosaurus, our golden star at the University of Portsmouth #Palaeofun #UoPalaeo
ESTA (@esta_uk) 's Twitter Profile Photo

ESTA conference 12-14th September 2025 at University College London. Information available via the hyperlink. eventbrite.co.uk/e/the-58th-est…

History_of_Geology (@geology_history) 's Twitter Profile Photo

June 23, 1937, birthday of English geologist & paleoclimatologist Nicholas Shackleton. He pioneered the use of isotopes as preserved in microfossils to reconstruct past climate changes paleonerdish.wordpress.com/2013/09/02/mic…

June  23, 1937, birthday of English geologist &amp; paleoclimatologist  Nicholas Shackleton. He pioneered the use of isotopes as preserved in  microfossils to reconstruct past climate changes
paleonerdish.wordpress.com/2013/09/02/mic…
Or M. Bialik (@bialikor) 's Twitter Profile Photo

I got an #OpenPosition (fully funded) for a PhD student/postdoc in #marine #biogeochemistry. As part of the MARBEDS project, we are looking for someone to study #seafloor fluxes and their interactions with #microbial communities in #biodiversity hotspots. Contact me for details.

I got an #OpenPosition (fully funded) for a PhD student/postdoc in #marine #biogeochemistry. As part of the MARBEDS project, we are looking for someone to study #seafloor fluxes and their interactions with #microbial communities in #biodiversity hotspots.
Contact me for details.
Paleopalinologia y Paleoecologia Vegetal - IANIGLA (@palino_ianigla) 's Twitter Profile Photo

Check on these beauties!! Middle Devonian chitinozoan assemblages of northwestern Argentina and southern Bolivia sciencedirect.com/science/articl… Sonia Camina and collaborators (Claudia and Vicky from our group💪) IANIGLA - CONICET Review of Palaeobotany and Palynology #Palynology

Check on these beauties!! 
Middle Devonian chitinozoan assemblages of northwestern Argentina and southern Bolivia sciencedirect.com/science/articl… 
<a href="/SoniaCamina/">Sonia Camina</a> and collaborators (Claudia and Vicky from our group💪)
<a href="/ianigla/">IANIGLA - CONICET</a> <a href="/RPalaeoboPalyno/">Review of Palaeobotany and Palynology</a> #Palynology
Laura Devine (@devinepalaeo) 's Twitter Profile Photo

472 pages and 4 years later I can finally call myself a Doctor! 🎓🎊 SEGG, University of Portsmouth Thank you to my viva examiners Rob Sansom🐟 and Dr Mariem Saavedra-Pellitero 🔬 for making it such a positive experience, and to my supervisor Nicholas Minter and everyone who has helped and supported me along the way! 🎉🦐🌊

472 pages and 4 years later I can finally call myself a Doctor! 🎓🎊 <a href="/UOP_SEGG/">SEGG, University of Portsmouth</a>
Thank you to my viva examiners <a href="/Sansom_Rob/">Rob Sansom🐟</a> and <a href="/MariemSaavedra/">Dr Mariem Saavedra-Pellitero 🔬</a> for making it such a positive experience, and to my supervisor <a href="/nichnos/">Nicholas Minter</a> and everyone who has helped and supported me along the way!
🎉🦐🌊
The PalAss (@thepalass) 's Twitter Profile Photo

⚠️ We are delighted to announce that registration for the 69th Annual Meeting of the Palaeontological Association is now open! 🔹Join us at the University of Portsmouth from 11th to 15th December 2025 [1/2]

⚠️ We are delighted to announce that registration for the 69th Annual Meeting of the Palaeontological Association is now open!
🔹Join us at the University of Portsmouth from 11th to 15th December 2025 [1/2]
Past Global Changes (@pages_ipo) 's Twitter Profile Photo

🧫 The 4th MARDI Workshop🔬 📅 3-5 Nov 2025 📍 University of Pisa, Italy Join MARDI to explore Arctic diatom proxies, taxonomic syntheses & interlab comparisons. Breakout groups, collaboration & insights await! 🔗 Register: pastglobalchanges.org/calendar/138550 #PaleoScience #MARDI #Diatoms

🧫 The 4th MARDI Workshop🔬
📅 3-5 Nov 2025
📍 University of Pisa, Italy
Join MARDI to explore Arctic diatom proxies, taxonomic syntheses &amp; interlab comparisons. Breakout groups, collaboration &amp; insights await!
🔗 Register: pastglobalchanges.org/calendar/138550
#PaleoScience #MARDI #Diatoms
CarlSaganDotCom (@carlsagandotcom) 's Twitter Profile Photo

“One trend that bothers me is the glorification of stupidity, that the media is reassuring people it’s all right not to know anything - that in a way it’s cool.” - Carl Sagan, Pacific Rim TransTech Conference 1995

“One trend that bothers me is the glorification of stupidity, that the media is reassuring people it’s all right not to know anything - that in a way it’s cool.”

- Carl Sagan, Pacific Rim TransTech Conference 1995
Dr. Jelena Godrijan 🫧❾🦋 (@godi_talk) 's Twitter Profile Photo

Here is the talk schedule for 🪩Advances in coccolithophore research 2025 🪩 🔗 shorturl.at/bJyPl 🌊#ocean #protists with a healthy mix of on-site and on-line talks! There is still time to register on line! Until ➡️ Friday 5th Sep 2025 at 12.00 UK (BST). Join us! 🪩

Sonia Camina (@soniacamina) 's Twitter Profile Photo

Job Opportunity at University of Leeds: Lecturer in Biosphere-Geosphere Interactions jobs.leeds.ac.uk/ENVEE1836 @AlexDunhill