Sign in

Laura Cooper

@transitionalform.bsky.social
788 followers 475 following 122 posts

Postdoc investigating the plants of the past at the University of Edinburgh, plants can be rocks too!

PostsRepliesMedia
Reposted by Laura Cooper
Alison Fisk @alisonfisk.bsky.social · 30/09/2026
Fabulous fragment of an ancient Egyptian wall relief with three bears and an oil jar. The paint has survived some 4,500 years! Limestone relief from the Pyramid Temple of Sahure, Old Kingdom, 5th Dynasty, c. 2496-2483 BC. Neues Museum, Berlin 📷 by me #ReliefWednesday #Archaeology
My photo shows a circa 4,500-year-old limestone relief with some well-preserved paint in places, from the funerary temple of Sahure at Abusir, measuring 39 × 35 × 8.5 cm. It shows three bears (partial view only) and a tall one-handled pottery vessel, across two registers. The upper register at left, shows the two leds and hindquarters of a bear, and at right, a bear’s lowered head, chest, and foreleg, painted mid-brown. The lower register at left shows a tall, dark-reddish-brown pottery vessel with a long neck and single handle, and at right, the lowered head, neck, shoulder, and top of foreleg of a dark-brown bear. The bears wear collars tethered by ropes to looped fixtures in the ground. The fragment comes from a wall scene depicting tributes from the Levant. Bears were not native to Egypt. The bears represented are Syrian brown bears  (Ursus arctos syriacus), which were quite common in Levantine mountain regions in antiquity. They were kept as exotic animals in enclosures by Egyptian kings, and also hunted.
16797158
Reposted by Laura Cooper
Natalia (娜塔莉) @wrycritic.bsky.social · 30/09/2026
Please. If you see evidence of workplace harassment. Badmouthing of own junior staff, unreasonable expectations, removal or omission from authorship, hostile language, evidence of overworking or distress. Don't walk by. Academic safety nets can't rely on whisper networks set by marginalised people.
Sad tiny chief
116148
Reposted by Laura Cooper
Carl Zimmer @carlzimmer.com · 27/09/2026
Four days ago, a scientist was surprised by the news that Anthropic discovered new virus genes for making DNA. He says he’s been studying them for years—and feeding his data to Anthropic’s AI as part of his own research. Coincidence? Here’s my story. nyti.ms/3VSWayc
nyti.ms
Did Anthropic’s A.I. Really Make a Scientific Discovery on Its Own? (Gift Article)
An expert at the University of Copenhagen said his team had been sharing its research with the company’s A.I. model, Claude, and that its new finding matched their work.
892117873
Reposted by Laura Cooper
Robin Hayward 🌳 🏳️‍⚧️ @canopyrobin.com · 25/09/2026
We're publishing new guidance to support trans people who do fieldwork (any work outside the office)! Now we need your help to get them seen so please share! inclusivefieldwork.leeds.ac.uk/trans/
a cartoon of three fieldworkers. One has a small trans flag. The logos of the university of leeds, research england, and canopy robin are shown, as well as the URL: InclusiveFieldwork (dot) Leeds (dot) AC (dot) UK (slash) trans
15598449
Reposted by Laura Cooper
Robert Boessenecker, Dr. of Whaleontology ™️ @coastalpaleo.bsky.social · 25/09/2026
#fossilfriday An example of why the ANSP and its collections must be saved. Atlantochelys mortoni, a giant protostegid sea turtle - named in 1849 by Agassiz based on the proximal humerus fragment. In 2012, someone found a large distal humerus that FIT ONTO THE SAME BONE in ANSP collections. 1/ 🦖🧪
The reunited humerus of the gigantic sea turtle Atlantochelys, on display in a museum: you can clearly see the break that happened sometime prior to the 19th century.
18437
Reposted by Laura Cooper
Alexis Rastier 🌿 @alexisrastier.bsky.social · 18/08/2026
Here is our new paper: Global proliferation of opportunistic pleuromeian lycopsids following the disappearance of the end-Triassic forests. Peng J, Slater S. M, McLoughlin S, Rastier A, Vajda V: doi.org/10.1038/s445... #Paleobotany #lycopsids #Jurassic
doi.org
Global proliferation of opportunistic pleuromeian lycopsids following the disappearance of the end-Triassic forests - npj Palaeoecosystems
npj Palaeoecosystems - Global proliferation of opportunistic pleuromeian lycopsids following the disappearance of the end-Triassic forests
1228
Reposted by Laura Cooper
Jacquelyn Gill @jacquelyngill.bsky.social · 01/08/2026
Another paper from our NASA-funded project on ferns has dropped! UWyoming MS student Fern (really!) Holian, developed a new schema for classifying fossil ferns, which are understudied. 🧪🌿☄️
bsapubs.onlinelibrary.wiley.com
Application of a novel schema for describing fossil fern foliage and investigating taxonomic and morphological change across the Cretaceous–Paleogene boundary in western North America
Premise The Chicxulub asteroid impact at the Cretaceous–Paleogene (K–Pg) boundary triggered a mass extinction 66 million years ago. Ferns thrived in the aftermath of the extinction, evidenced by the.....
312332
Reposted by Laura Cooper
Dr. Peter Paul Rubens @peterpaulrubens.bsky.social · 15/09/2026
Boom! A simply brilliant study of a pomegranate from Jacques le Moyne des Morgues. I mean, color, composition, wow. Today is his day.
212720
Laura Cooper @transitionalform.bsky.social · 11/09/2026
Strange things found looking up fossil localities this week.
A screenshot from Wikipedia of Megaliths in Kazakhstan A screenshot of a google review of the Kuznetsk Alatau reading "While ventricular may not be the correct word, neither should citrus fruit be given nose trimmers. Those are my thoughts. But please do visit and judge  for yourself"A screenshot of a google review reading "Samantha was attacked by a polar bear, but i dont really care. but they didn't let me bring my tractor. 2 star"
030
Laura Cooper @transitionalform.bsky.social · 11/09/2026
The paper a lot of our lab (@sannie-zishanfu.bsky.social @sandyheth.bsky.social @anajusagasti.bsky.social) contributed to on the indepedent origins of the endodermis with Tom Beeckman and Xilian Yang is out now in @currentbiology.bsky.social www.sciencedirect.com/science/arti...
sciencedirect.com
Independent origins of endodermis in lycopsids and euphyllophyte roots
The endodermis is a vital barrier tissue in plants, but its origin, evolution, and homologies across land plants remain ambiguous. Here, we implement …
0229
Reposted by Laura Cooper
Dr Alessio Veneziano @aveneziano.bsky.social · 11/09/2026
Creativity is a high-risk high-reward feature of #science. No creativity = stagnant research! The miserable state of today's academia makes individual creativity a risk instead of an asset for a scientific career. You should read this article, carefully 🧪 doi.org/10.1038/s415...
doi.org
How contemporary academic structures constrain scientific creativity and hold back early-career researchers - Nature Human Behaviour
In this Perspective, Haubrock et al. argue that today’s scientific structures constrain creativity and that strategic conformity is a rational response. They discuss how this holds back early-career r...
092
Laura Cooper @transitionalform.bsky.social · 11/09/2026
Hi, apologies for missing your messages earlier. Do you know the age of the deposits you are looking at? Also, based on your previous posts I see that you are in Ohio, are you aware of the previous records of Prototaxites from Cleveland? I can send you the paper if not.
120
Laura Cooper @transitionalform.bsky.social · 07/09/2026
No problem, let me know if there's anything I can help with!
021
Laura Cooper @transitionalform.bsky.social · 03/09/2026
Thanks to @scishow.bsky.social for their new video covering our research on Prototaxites, really great work here! www.youtube.com/watch?v=7gFg...
youtube.com
Those Ancient Giant Fungi Weren’t Fungi After All
YouTube video by SciShow
22214
Reposted by Laura Cooper
Tom Astle @tjalamont.bsky.social · 25/07/2026
Our queen of the night cactus had a dozen flowers open on the same night this week. It was quite a show, worth staying up to see, plus the scent of so many flowers at once was incredible.
A close up phone pic of two large, white epiphytic cactus flowers blooming at night. The one in the foreground is resting lightly on the ground. A picture of a green epiphytic cactus plant against a wooden fence at night. Six large white flowers are blooming on the plant.
614621
Reposted by Laura Cooper
Natalia (娜塔莉) @wrycritic.bsky.social · 26/07/2026
Astounding traditional Chinese artworks of the Cretaceous invertebrates from the Jehol (远古小精灵系列), featured at the Nanjing Paleontological Museum. Glad to see creative representation of insects in palaeontology.
12 artworks of Cretaceous insets Ephemeropsis mayfliesKalligramma reconstruction
519165
Laura Cooper @transitionalform.bsky.social · 22/07/2026
It might if we consider it as a separate "kingdom" of life (higher level eukaryotic lineage) that is now extinct...
170
Reposted by Laura Cooper
New Phytologist @newphyt.bsky.social · 21/07/2026
Partial mycoheterotrophy: a common strategy in arbuscular mycorrhizal plants? Merckx et al. nph.onlinelibrary.wiley.com/doi/10.1111/...
Proposed autotrophy to mycoheterotrophy continuum among mycorrhizal plants, based on Johnson et al. (1997).
064
Reposted by Laura Cooper
Hope Jahren @realhopejahren.bsky.social · 17/07/2026
Do you, or someone you know, study carbon isotopes? If so, you need this paper: ⚛️🌱☁️ "A century of research on carbon isotope discrimination during photosynthesis: from early breakthroughs to future goals" (by me and @schubertba.bsky.social) #TansleyReview #PublishedArticle #OpenAccess
doi.org
A century of research on carbon isotope discrimination during photosynthesis: from early breakthroughs to future goals
Advanced plant growth chambers quantified the dependency of carbon isotope fractionation on CO2 level, making possible the reconstruction of atmospheric CO2 across 500 million years of earth history ...
0134
Reposted by Laura Cooper
Helen Barrett @helenbarrett.bsky.social · 16/07/2026
Unveiled this evening: the 170-year-old, grade ii*-listed, wildly inaccurate Crystal Palace dinosaurs, now restored to their original colours and off the Historic England at-risk register.
Enormous model lizards in Crystal Palace Park Enormous model lizards in Crystal Palace Park
455763
Laura Cooper @transitionalform.bsky.social · 16/07/2026
:0
020
Reposted by Laura Cooper
travis-park.bsky.social @travis-park.bsky.social · 16/07/2026
If you want an up-to-date summary of whale and dolphin evolution, have a read of my new review paper in @natrevbiodiv.nature.com! I’ve tried to cover as much research as possible in this, so apologies if I’ve missed you! doi.org/10.1038/s443...
doi.org
The evolution and diversification of Cetacea - Nature Reviews Biodiversity
Cetaceans are a highly diverse and enigmatic group of animals with a well-documented evolutionary history. This Review describes the macroevolutionary and palaeobiological history of Cetacea, from the...
05023
Reposted by Laura Cooper
the beggars out of here getter @milesklee.bsky.social · 13/07/2026
My privilege to share some lovely stories from the science community about what Sam Neill's timeless performance as Dr. Alan Grant in Jurassic Park meant to them—and why it will continue to inspire kids to chase their own discoveries for years to come.
wired.com
Sam Neill Inspired a Generation of Scientists
The actor, who died at age 78 on Monday, embodied a passionate approach to research and positive masculinity in his role as paleontologist Alan Grant in the 1993 blockbuster Jurassic Park.
232764798
Reposted by Laura Cooper
Botany One @botany.one · 13/07/2026
Paleo Week: Ancient Secrets of the Fibonacci Spiral www.botany.one/ancient-secr... Longer cones and a clockwise spiral lead to tighter seed packing in a Jurassic conifer #Botany #PlantScience
botany.one
Paleo Week: Ancient Secrets of the Fibonacci Spiral
Longer cones and a clockwise spiral lead to tighter seed packing in a Jurassic conifer
0229
Reposted by Laura Cooper
Anne-Laure D 🌿 @aldpaleo.bsky.social · 13/07/2026
Friends of Fossil Forests seminar tomorrow "Opalized wood from Clover Creek, Idaho: A case study in the power of amateur-professional collaboration" 🌳🌲⛏️ July 14, 2026, 11:00 AM EDT (GMT-4). All info & RSVP to get the link: www.fossilforests.org/post/petrifi... #fossil #paleobotany #wood
Photo of a section of fossil wood from Clover Creek from the Friends of Fossil Forests website.
093
Laura Cooper @transitionalform.bsky.social · 11/07/2026
It's so funny when people ask me what I do: "So there's this unfathomable mystery of life..."
031
Reposted by Laura Cooper
beetle moses @beetlemoses.bsky.social · 10/07/2026
Two year anniversary of when I first posted this comic
Two panel comic. Panel 1: an anglerfish is washed up on the ocean shore, laying in the tide. It thinks to itself, “it’s so beautiful.” Panel 2: wide shot of the beach, rocky cliffs, and sky at sunset, with the anglerfish still laying in place. The anglerfish continues thinking to itself, “I might have never known.”
121215464411
Reposted by Laura Cooper
Current Biology @currentbiology.bsky.social · 19/06/2026
"Algae frequently get a bad press" 🤔 But reflecting further, most of the time they do good work. All about #algae in this excellent primer by John Raven and Mario Gordano www.cell.com/current-biol...
cell.com
Algae
Algae are a diverse group of organisms that collectively have important impacts, both positive and negative, on the environment and on human lives.
02210
Laura Cooper @transitionalform.bsky.social · 07/07/2026
My pre order arrived in the uk today, looking forward to it!
010
Reposted by Laura Cooper
Alison Fisk @alisonfisk.bsky.social · 04/07/2026
Something beautiful for the weekend! An extraordinary Acheulean handaxe knapped around a fossil shell c. 500,000-300,000 years ago! From West Tofts, Norfolk 📷 MAA Cambridge University collections.maa.cam.ac.uk/objects/4509... #Archaeology
The photo shows a Lower Paleolithic Acheulean biface handaxe knapped from dark grey flint with a creamy-white cortical layer, shown against a black background. The handaxe is roughly tear-drop shaped with a pointed tip and rounded bottom. There is a fossil shell centrally displayed on one face, identified as the Cretaceous bivalve mollusc Spondylus spinosus. Above the shell to the right is a small rectangular museum label. Likely made by an early neanderthal (Homo neanderthalensis) population or an alternative Middle Pleistocene hominin species (H. heidelbergensis s.l.). The toolmaker has knapped the flint in such a way as to seemingly retain the shell in a central position. The shell’s central display has often been described as an example of aesthetic intention by the toolmaker. A recent study (“The West Tofts handaxe: A remarkably average, structurally flawed, utilitarian biface” by Emily Flanders and Alastair Key) concluded it was likely ‘an average utilitarian tool’ in the eyes of its Acheulean maker, and that the aesthetic intent is assumed by the present-day beholder, and not supported by objective evidence.

Measurements 79mm x 35mm x 132mm. Weight 0.375kg. 

Collections of the Museum of Archaeology and Anthropology, University of Cambridge.
18825241
Reposted by Laura Cooper
_AlexBowles @alexmcbowles.bsky.social · 02/07/2026
Think you know aquatic plants? 7 facts that might surprise you 👇🌊 Read more: shorturl.at/0bCm1 As highlighted in @currentbiology.bsky.social, while at @ox.ac.uk @biology.ox.ac.uk
shorturl.at
Seaweeds are not plants – and six other surprising facts about aquatic flora
The rules for plants can be different in water.
01411
Reposted by Laura Cooper
Sean McMahon @seanhmcmahon.bsky.social · 30/06/2026
🤔 Can a concept widely used in economics help us recognise alien life, from fossils on Mars to molecules in the outer solar system? A quick thread to explain a new paper from my research group : Can Pareto Optimality be Evidence of Life?, by Rodgers et al. 🧵 1/10 doi.org/10.1177/1531...
Cartoons of (a) swimming rod-shaped bacteria, which look like long beans with wriggly strings at the ends; (b) a branching network that could be a kind of plant, alga, or fungus; (c) the structure of a protein molecule.
262
Reposted by Laura Cooper
Dr Lia Betti @liabetti.bsky.social · 30/06/2026
Very, very happy that our paper is finally out! We look at how tight a fit primates experience at birth, and found really cool results. It has been a long journey from collecting the first data seven years ago! A brief thread (1/8) www.nature.com/articles/s41...
nature.com
Comparative primate analysis shows that humans are not unique in having a tight cephalopelvic fit at birth - Nature Ecology & Evolution
Analysing cephalopelvic proportions among 29 extant primate species, the authors show that a tight cephalopelvic fit is not unique to humans, with comparable or tighter fits occurring in several non-h...
311242
Reposted by Laura Cooper
Adam Rutherford @adamrutherford.bsky.social · 30/06/2026
This is cultural suicide and intellectual vandalism. In an era where humanities-illiterate tech bros have unearned god-like powers, we need historians, philosophers, ethicists, classicists more than ever. Please sign. (Reposting without 404) www.change.org/p/stop-redun...
change.org
Sign the Petition
Stop Redundancies at the University of Exeter
310844
Laura Cooper @transitionalform.bsky.social · 29/06/2026
This is the more minor aesthetic decision made in response to Lohengrin, admittedly.
000
Reposted by Laura Cooper
The Linnean Society of London @linneansociety.bsky.social · 29/06/2026
Call for Writers! 📣 Are you a student or early career researcher? Science communicator? Know someone who is? We're looking for our next round of Guest Bloggers for our journal blog The Paper Trail! Check out our vacancies page to apply, and read some of our latest posts here: buff.ly/7JVQmSx 🧪 🌍
087
Reposted by Laura Cooper
David Clark @clarkeocrinus.bsky.social · 26/06/2026
Have you ever booped a trilobite nose? Kainops raymondi from the Devonian Haragan Fm. near Clarita, Oklahoma - Black Cat Mountain. #FossilFriday
317326
Reposted by Laura Cooper
University of California Museum of Paleontology @ucmpberkeley.bsky.social · 26/06/2026
🌿Brand new research out in Science today about angiosperm reproductive strategies and how they preceded the K-Pg mass extinction, led by UCMP PhD student, Jaemin Lee, and curator, Cindy Looy!🌿 www.science.org/doi/10.1126/...
science.org
Diversification of angiosperm reproductive strategies predated the end-Cretaceous extinction
Angiosperm reproductive evolution is traditionally linked to the end-Cretaceous biotic crisis and subsequent ecological restructuring. Here, we report diverse and unexpectedly large diaspores (dispers...
02213
Reposted by Laura Cooper
Itai Yanai @itaiyanai.bsky.social · 24/06/2026
🔥 Published today, and just in time for summer conferences, here are your guidelines for presenting badly www.nature.com/articles/s41... rdcu.be/fqa92
13533199
Reposted by Laura Cooper
Steve Brusatte @stevebrusatte.bsky.social · 24/06/2026
Scientific American is 180 years old. The most eminent science magazine for the general public. And today, sold off as scrap to stop the staff from unionizing. Many top editors I've worked with for a decade on several articles have been fired. What a disgrace @sciam.bsky.social
6530151288
Reposted by Laura Cooper
Sandy Hetherington @sandyheth.bsky.social · 23/06/2026
Congratulation @transitionalform.bsky.social @instmolplantsci.bsky.social for publishing the next chapter of your thesis @currentbiology.bsky.social ! Great work showing that the two fundamental vascular tissues - xylem and phloem evolved asynchronously. Read Laura's thread for more details 👇👇
0228
Laura Cooper @transitionalform.bsky.social · 23/06/2026
Because the Rhynie chert plants include plants with xylem but without true phloem, this suggests that xylem and phloem did not have a common origin within the land plants, but rather both tissues evolved gradually and independently, occurring in their modern form in at different times. 10.
Schematic showing the gradual evolution of phloem and xylem from food conducting cells and water conducting cells, respectively, with the phloem evolving sepately in the euphyllophytes and extant lycophytes.
0226
Laura Cooper @transitionalform.bsky.social · 23/06/2026
This suggests that in the Rhynie chert plants, there was a tissue specialised in sugar conduction, but was distinct, and likely not as specialised and effective, as the phloem of extant vascular plants. 9/
172
Laura Cooper @transitionalform.bsky.social · 23/06/2026
But we found that the FCCs of Asteroxylon did have (submicron!) sieve pores, which in extant plants is involved in the movement of sugars through the phloem, suggesting this tissue did have a sugar conduction specialisation. This is the earliest example of sieve pores in the fossil record. 8/
Sieve pores imaged using CLSM and SEM in Asteroxylon mackiei
162
Laura Cooper @transitionalform.bsky.social · 23/06/2026
These FCCs had some, but not all, of the features of phloem of extant vascular plants. The Rhynie chert plants didn't have a distinction between FCCs and cortical cells, or a boundary between these tissues, and the FCCs are very large in diameter compared to phloem cells. 7/
Cladogram showing that the Rhynie chert plants lacked a pericycle, and had a grading of tissue between FCCs and cortex.
162
Laura Cooper @transitionalform.bsky.social · 23/06/2026
The Rhynie chert plants had a tissue called FCCs (food conducting cells) around the central strand of xylem (or water conducting cells), in the position that phloem is in extant plants. 6/
Asteroxylon mackiei in a thin section from the University of Manchester
152
Laura Cooper @transitionalform.bsky.social · 23/06/2026
I also compared these plants with the extant lycophytes, the earliest diverging group of living vascular plants, and the group to which one of the Rhynie chert species (Asteroxylon mackiei) belongs. Illustration by @palaeojules.bsky.social 5/
Lycopodium annotinum, illustrated by Julianne Kiely.
152
Laura Cooper @transitionalform.bsky.social · 23/06/2026
I imaged the Rhynie chert plants using confocal laser scanning microscopy and scanning electron microscopy, two very high resolution imaging techniques that can be used to identify sub-micron features in these fossil plants. 4/
A CLSM image of Rhynia from the Rhynie chert, thin section from the University of Manchester.
172
Laura Cooper @transitionalform.bsky.social · 23/06/2026
The plant species preserved here include non-vascular plants that are close relatives of vascular plants, and plants that belong in modern groups, so they can be used to investigate the early evolution of major traits of vascular plants like phloem. 3/
153
Laura Cooper @transitionalform.bsky.social · 23/06/2026
To understand these sort of fundamental questions in plant evolution, we can examine the exceptionally preserved plants of the Rhynie chert, a 407 million year old fossil deposit where some of the earliest land plants are preserved through the activity of a hot spring. Art by Victor Leshyk. 2/
The Rhynie chert ecosystem by Victor Leshyk
153