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Tia Marrone

@macaronsncheese.bsky.social
319 followers 1K following 70 posts

Grad student and aspiring paleontologist, or as I like to call it a nerd with too many opinions on fossil sand dollars (I'm told I do a great impression of one). I don't post much these days. Also like reading and making pixel art. She/they bi and Catholic

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Reposted by Tia Marrone
Rebecca Wang 王思寧 @rebeccawang.bsky.social · 27/08/2026
Post 3 of Aug 2026 #Invertefest : Some inverts on display at Christopher Marley’s Exquisite Creatures exhibit in Seattle, taken earlier this summer! Would highly recommend you give it a visit if you are in the area! 😄
Me standing in front of a colorful wall of pinned insectsAn example of the many many beautiful exhibits that combine Art and the natural world togetherA trio shadowboxes featuring monochrome brittle stars arranged in aesthetically pleasing circular patternsColorful sea urchins displayed in a colorful mosaic - all of them are naturally colored!
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Simon Kővesi @kovesi.bsky.social · 03/08/2026
Four baselines for academic conference attendance: 1) keep to your allocated speaking time. 2) everyone is clever; stand out by being warm & kind. 3) be interested in everyone equally - from postgrad to Prof to conference administrator to catering & hotel staff. 4) in Q&A, ask an actual question.
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Admirable Women @admirablewomen.bsky.social · 26/07/2026
Chemist & X-ray crystallographer Rosalind Franklin's meticulous research was instrumental in uncovering DNA's molecular structure. Most famous for her role in the DNA double helix discovery, her work also revolutionized our understanding of viruses & coal. She was born #OTD in 1920. #WomenInSTEM 🧵
A classic, black-and-white studio portrait of a young Dr. Rosalind Franklin (1920–1958), the pioneering British chemist and X-ray crystallographer whose data was foundational to uncovering the double-helix structure of DNA. Captured from the chest up, Franklin sits in a three-quarter pose, her body angled slightly toward the left while her gaze directly meets the viewer. She possesses a calm, intelligent, and subtly enigmatic expression, with her dark hair neatly parted on the side and styled back away from her face. She wears a dark, long-sleeved button-down blouse with structured shoulders, a sharp collar, and fabric buttons down the front placket. The background is a soft, minimalist studio gradient of neutral grays that creates a gentle vignette effect, casting a soft light on the right side of her face. The composition is clean, formal, and balanced, evoking a mood of quiet determination, dignity, and brilliant intellectual poise characteristic of the early 20th-century scientific vanguard.
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Tom Near @tjnear.bsky.social · 16/07/2026
New primate species. Congratulations to my YPM colleague Prof. Eric Sargis and coauthors. news.yale.edu/2026/07/15/m...
news.yale.edu
Meet ‘Likweli’: A new monkey species discovered in the Congo Basin
Yale researchers have helped to describe a new species of Colobus monkey living high in the forest canopies of the Democratic Republic of Congo.
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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 02/07/2026
My essay defending funding of basic science, even research projects that sound silly when presented out of context by anti-intellectual demagogues, won an international writing award! And now American Scientist magazine has made it open access and free to read. Check it out here:
americanscientist.org
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Emma Mitchell @silverpebble2.bsky.social · 16/05/2026
Younger daughter & I found these fossilised crinoid rock stars (segments of the ‘stem’ of Jurassic feather stars/sea lilies, related to starfish & sea urchins) in the gravel on the edge of a lake nr Peterborough UK. She used them to make an ammonite:
A spiral of crinoid ossicles from the Jurassic arranged in a spiral according to size on a white glazed plate
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Chris Mah @echinoblog.bsky.social · 25/04/2026
The jaw of a sea urchin, called Aristotle's Lantern, extracted from one of the prepped specimens. Originally thought to have been called such because Aristotle named it as a lantern..but there are other opinions.. echinoblog.blogspot.com/2008/11/true...
white tulip like object composed of skeletal plates-the jaw of a sea urchinwhite tulip like object composed of skeletal plates-the jaw of a sea urchin
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Chris Mah @echinoblog.bsky.social · 25/04/2026
SEA URCHIN TESTS! Cleared skeletons.. spines removed
round sea urchin skeletons with spines removed showing different colors and textures
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Alt National Park Service @altnps.bsky.social · 22/04/2026
Happy Earth Day! 🌎
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Literally Miguel 🇻🇪 @literallymiguel.bsky.social · 09/04/2026
i jumped and squeaked and peed a little
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Chris Mah @echinoblog.bsky.social · 04/04/2026
#Easter makes me think of EGGS! which makes me think of SEA URCHINS! Here's some Cidaris rugosa skeleton (= test) #echinoday
cleared sea urchin skeleton (spines removed) on a blue background with teeth stickin upSide view of sea urchin test with knobs where spines used to be
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Tia Marrone @macaronsncheese.bsky.social · 30/03/2026
It's finally available! scholarworks.calstate.edu/concern/thes...
scholarworks.calstate.edu
Morphometric Assessment of the Cenozoic Echinoid Genus Astrodapsis
The extinct echinarachniid sand dollar genus, Astrodapsis Conrad, 1856, endemic to marine deposits from the late Miocene to earliest Pliocene of California (Hall 1962) and Baja California Sur (Squi...
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Mark Chilcott @markchilcott.bsky.social · 09/03/2026
Monday! #calvinandhobbes #digitalart ##digitalpainting
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ascalaphid @ascalaphid.com · 01/03/2026
may i offer you some shrews in these trying times
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Chris Mah @echinoblog.bsky.social · 14/02/2026
Spatangus purpureus! A heart urchin that almost looks pink! #valentinesday www.inaturalist.org/observations...
inaturalist.org
Purple Heart Urchin (Spatangus purpureus)
Purple Heart Urchin from Louro on October 12, 2025 at 01:34 PM by Xaime Beiro
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Chris Mah @echinoblog.bsky.social · 14/02/2026
An attractive test (skeleton) of a heart urchin, Brissus unicolor! #Valentinesday www.inaturalist.org/observations...
inaturalist.org
Groove Burrowing Urchin (Brissus unicolor)
Groove Burrowing Urchin from Las Palmas, ES-CN, ES on November 30, 2025 at 03:15 PM by Dennis Rabeling
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Chris Mah @echinoblog.bsky.social · 14/02/2026
ooo! A nice heart urchin plowing through the sediment! Echinocardium from France! #valentinesday www.inaturalist.org/observations...
inaturalist.org
Mediterranean Heart Urchin (Echinocardium mediterraneum)
Mediterranean Heart Urchin from Gard, Languedoc-Roussillon, FR on December 14, 2021 at 08:31 PM by Thomas Menut
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Gabriel Ugueto @serpenillus.bsky.social · 10/02/2026
Very quick rough sketch of the newly described spiky Hadrosauroid dinosaur Haolong dongi I had to at least rough sketch this beauty! #paleoart #sciart #dinosaurs
Rough sketch of Haolong climbing a rock
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Natalia (娜塔莉) @wrycritic.bsky.social · 09/02/2026
When starting this thread, I had maybe 5 key figures in mind, but a quick dig let me down a dark rabbithole that keeps going. There were many paleontologists that inspired/or were Nazis (this didn't harm their future careers), that led to murders of paleontologists. But it's not a widely known topic
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Chris Mah @echinoblog.bsky.social · 09/02/2026
CRAZY diversity of sea stars fr NEW CALEDONIA! I describe 28 NEW SPECIES,3 NEW GENERA! #echinoday #goniasteridae #openaccess. My thanks to colleagues at the @MNHN.fr in Paris! for my many visits in order to complete this research! Will share some of my favorites herein! mapress.com/mt/article/v...
mapress.com
New genera, species and occurrences of Goniasteridae (Valvatida, Asteroidea) from New Caledonia | Megataxa
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Louie Zong @everydaylouie.bsky.social · 05/02/2026
touch tank
a stylized 3d render of a bunch of cats at an aquarium touch tank.
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Chris Mah @echinoblog.bsky.social · 20/01/2026
A spiny friend called Calliaster spinosus! Most likely not seen since Hubert Lyman Clark described it in 1916! #coralseafrontiers thanks to @oceancensus.bsky.social @drtimohara.bsky.social
sea star with large pointy spines on disk and along lateral edge
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Chris Mah @echinoblog.bsky.social · 16/01/2026
Cleared skeleton of a so-called Cactus Urchin1 Dermechinus horridus! with its bizarre high-aspect test! Possibly an adaptation to filter feeding! #echinoday
pineapple shaped orange colored skeleton of a cactus urchin with white spots where spines have been removed.pineapple shaped orange colored skeleton of a cactus urchin with white spots where spines have been removed.
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Chris Mah @echinoblog.bsky.social · 09/01/2026
Only 7 more days to apply for an NMNH Research Undergrad internship/experience! naturalhistory.si.edu/research/nat...
naturalhistory.si.edu
Natural History Research Experiences
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Chris Mah @echinoblog.bsky.social · 14/12/2025
URCHIN KAIJU! THIS one is called UNI-GON! from 1966! WHAT HAPPENS when you cut funding to echinoderm monster research??? ha ha! translation of name from @mattalt.bsky.social for whom I am eternally grateful! #invertsincomics #echinoday
page from old japanese magazine showing a sea urchin magazine attacking a small town
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Siobhán McElduff @siobhanmcelduff.bsky.social · 02/12/2025
Not everything has to produce things that can be measured easily.
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Mark Witton @markwitton.bsky.social · 24/11/2025
Working on invertebrate #paleoart at the moment, knowing I'm probably making mistakes despite best efforts, consulting primary literature etc. Inverts are much like fossil plants: there are few accessible resources on their appearance so we must wing it, or go down deep rabbit holes to restore them.
Detail of a larger painting showing the trilobites Eldredgeops rana.
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mossworm.bsky.social @mossworm.bsky.social · 17/11/2025
Please, if you've ever wanted to help me financially, help PRI. They're an independent museum in Ithaca at immediate risk of foreclosure. I would be so crushed if they didn't make it.
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David Clark @clarkeocrinus.bsky.social · 14/11/2025
This is a late Cretaceous echinoid, Hardournia mortonis, from the Peedee Fm. near Holden Beach, NC. The mouth structure is preserved with 5 beak-like teeth called Aristotle's lantern. #FossilFriday
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Chris Mah @echinoblog.bsky.social · 12/11/2025
Lovely plate patterns from this isocrinid stalked crinoid- NOT a fossil but dang! sure looks like a "living fossil"!! Skeletons are calcium carbonate. #echinoday
branching patterns of segmented pieces that compose the arms on this animalBranching patterns on the cup of this crinoid
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Thomas Spooks 🎃👻💀 @thomasfuchs.at · 31/10/2025
Meme showing six logical operators illustrated with jack-o'-lantern images. 

trick OR treat 
trick AND treat 
trick XOR treat 
trick NOR treat 
trick NAND treat 
trick XNOR treat
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Riley Black 🏳️‍⚧️ 🦖 @restingdinoface.bsky.social · 23/10/2025
Less rain, and less ice, means fewer fossils to find. And more wildfires that can keep paleontologists away from field sites. How decades of western drought are changing paleontology, my latest for SIERRA. 🧪
sierraclub.org
Decades of Drought Are Changing How Paleontologists Search for Fossils
As the planet gets hotter, relics of history are receding from view
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Zoognosis with Joy! @zoognosisjoy.bsky.social · 17/10/2025
The goal of conservation should not be to return the world to primeval depopulated wilderness but to build and maintain sustainable relationships with the world.
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Tia Marrone @macaronsncheese.bsky.social · 08/10/2025
As of today, my master's thesis has officially been signed and submitted! Morphometric Assessment of the Cenozoic Echinoid Genus Astrodapsis should be available through the CSU ScholarWorks repository soon, if weird miocene sand dollars are a thing you're interested in.
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Chris Mah @echinoblog.bsky.social · 12/09/2025
Two native Hawaiian land snails rediscovered on Kaua‘i | Big Island Now #molluscmonday bigislandnow.com/2025/09/10/t...
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Chris Mah @echinoblog.bsky.social · 09/09/2025
PSEUDOCOPULATION! Archaster angulatus a commonly encountered sand star in Australia- undergoes this "stacking" behavior to presumably enhance reproductive success-if memory serves its alternating genders. this is QUITE a stack! www.inaturalist.org/observations...
inaturalist.org
Archaster angulatus
Archaster angulatus from Cockburn, WA, Australia on January 29, 2020 at 08:01 PM by henrycarrick. Observed at night in 9m of water on silty/sandy bottom nearby shallow Posidonia australis meadows...
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Dr. Damien P. Williams, dread portent down from a mountain cave @wolven.blacksky.app · 31/07/2025
They'll have to try to pry my em dashes from my bisexual— and neurodivergent— hands.
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Darren Naish @tetzoo.bsky.social · 07/09/2025
I am opposed to AI products and services because of the extra power they require... IN A CLIMATE CRISIS. I am opposed to AI results - texts and illustrations - because they've been created unethically, via theft and non-consensual use of the work of others. Share if you agree.
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Dr Suresh Singh @palaeosingh.bsky.social · 05/09/2025
Given recent interest in the ankylosaur, Spicomellus & its extreme armour, I thought l'd share this photo of an #aetosaur spike for this #FossilFriday. Highlights how wonderfully weird #Triassic reptiles pioneered many striking traits once thought limited to dinosaurs. #Paleontology #Science 🧵 1/
An aetosaur osteoderm (armour plate) fossil with a large spike sticking out from the centre. Specimen from the collections of the New Mexico Museum of Natural History & Science in Albuquerque, New Mexico, USA.
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Maija Karala @maijakarala.bsky.social · 04/09/2025
#SciArtSeptember 4 - Riverbank Many mammals across the world have evolved an otter-like body shape and lifestyle. Perhaps the oddest and one of the most obscure is the West African giant otter shrew (Potamogale velox). Not an otter, not a shrew, but a distant cousin of elephants!
Ink-like digital illustration of an otter-like animal standing on a riverbank. The animal - a giant otter shrew - is coloured, while the background is lineart.
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Mike Drucker @mikedrucker.bsky.social · 01/09/2025
It’s a little weird to demand people vote for a candidate as a necessary lesser evil three years before you even know if they’re going to be the candidate
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Nick Mason @nick-mason.bsky.social · 21/08/2025
Does anyone have a recommendation for a good review / synthesis of the evolution of DNA sequencing technologies over the last 40-50 years? Looking for something to read as a lab group with folks who are newer to the field. TIA
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Eden Hoffer @edenhoffer.bsky.social · 16/08/2025
Dr. Alissa Centivany at @westernu.ca does great work on this problem/the Right to Repair! informationmatters.org/2025/05/the-...
informationmatters.org
The Great Canadian Breakdown: What will it take to get a “Right to Repair” in Canada? - Information Matters
Fixing things in Canada has never been more difficult. Smartphones, laptops, refrigerators, washing machines, smart speakers, virtual assistants, cars, bicycles, wheelchairs, pacemakers, ventilators, ...
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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 13/08/2025
Daily briefing: Political officials could control US federal science grants www.nature.com/articles/d41... This is insane and counterproductive and not a thing that happens in free and prosperous societies
nature.com
Daily briefing: Political officials could control US federal science grants
An executive order from US President Donald Trump could mean that political appointees will vet grant applications for ‘anti-American’ research. Plus, eight ‘genetic signals’ of ME/chronic fatigue…
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Chris Mah @echinoblog.bsky.social · 12/08/2025
A stunning orange purple variant of Macrophiothrix nereidina from Japan via @Crinoidea_hk
star shaped animals, dark orange-red disk and arms with blue patterns and light orange spines
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Chris Mah @echinoblog.bsky.social · 12/08/2025
Whoa. This one is crazy! Macrophiothrix nereidina! www.inaturalist.org/observations...
inaturalist.org
Macrophiothrix nereidina
Macrophiothrix nereidina from Baturinggit, Kubu, Karangasem Regency, Bali, Indonesia on October 28, 2019 by uwkwaj
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Dr. Solomon David @solomonrdavid.bsky.social · 04/08/2025
"Part of what we're doing here today is working with citizen scientist anglers who know how to catch these fish, and get samples that will contribute to our data to better understand these populations, their ecology, life history.” www.mankatofreepress.com/sports/local... @garlab.bsky.social
mankatofreepress.com
Heilman: Bowfin fishing, research leads to new discoveries
Well, the native fish folks are at it again, stirring the pot and doing weird stuff in public. They’re relentless like that—but in a good way.
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Chris Mah @echinoblog.bsky.social · 03/08/2025
Sea cucumber crime! www.canada.ca/en/fisheries...
canada.ca
British Columbia harvester fined over a million dollars and receives a six-year jail sentence for illegal fishing and sale of sea cucumber - Canada.ca
Fisheries and Oceans Canada (DFO) is committed to the enforcement of the Fisheries Act and is working with partners to strengthen surveillance, monitoring, and prosecution of serious fisheries violati...
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Colton the fish sp💀💀ker🐟🪴🏕️🐝 @fishsqueezer.bsky.social · 26/07/2025
Thanks, I feel inspired: While trees rake carbon from the sky and lignify it 'til they die, eventually that heat's released by fire or rot or gnawing beast. But if you've got the clime to suit, and want to see less top, more root while storing carbon out the ass you cannot beat a prairie grass.
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Chris Mah @echinoblog.bsky.social · 25/07/2025
An active predator in the area- many urchins broken open, fed upon but this one had its jaw-the Aristotle's lantern still in place-nicely prepped! #NAEC2025 Juneau Alaska #echinoday
white jaw like structure amidst red interior of skeleton, green spineswhite jaw like structure amidst red interior of skeleton, green spines
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