#paleobiology — Public Fediverse posts

📖 Further reading: The study underlines the need to re-examine the #paleoecology of these fascinating #arthropods and that additional discoveries like Polonolimulus may led to further revisions in our understanding of the #habitat and early #diversification of this group. Full paper can be found here in #OpenAccess for everyone to read: https://doi.org/10.7717/peerj.20950 #fossils #paleobiology #paleontology #evolution

Prototaxites

"About 400 million years ago—long before the first giant dinosaurs—a massive and strange organism up to 8 meters long loomed over the Lilliputian plants, mushrooms, and bugs that carpeted the land"

Not a fungus. Not a lichen. Not a plant ...

An unknown branch of multicellular life that went extinct

https://www.science.org/content/article/bizarre-400-million-year-old-fossil-was-unknown-life-form

#fossils #Prototaxites #newFormOfLife #evolutionaryBiology #Edinburgh #Scotland #paleobiology #RhynieChert

Preprint released just in time for #fossilfriday: Unique fingerprint of marine ectotherm body size change during hyperthermal crises https://doi.org/10.1101/2025.07.25.666730 #paleontology #paleobiology #ecology #Evolution #ClimateWarming

Stage (stratigraphy) (Geology terminology ⛰️)

In chronostratigraphy, a stage is a succession of rock strata laid down in a single age on the geologic timescale, which usually represents millions of years of deposition. A given stage of rock and the corresponding age of time will by convention have the same name, and the same boundaries. Rock series are divided...

https://en.wikipedia.org/wiki/Stage_(stratigraphy)

#Stage #UnitsOfTime #Paleobiology #Geochronology #GeologicalAges #Paleogeography

Stage (stratigraphy) (Geology terminology ⛰️)

In chronostratigraphy, a stage is a succession of rock strata laid down in a single age on the geologic timescale, which usually represents millions of years of deposition. A given stage of rock and the corresponding age of time will by convention have the same name, and the same boundaries. Rock series are divided...

https://en.wikipedia.org/wiki/Stage_(stratigraphy)

#Stage #UnitsOfTime #Paleobiology #Geochronology #GeologicalAges #Paleogeography

Chronozone (Geology terminology ⛰️)

A chronozone or chron is a unit in chronostratigraphy, defined by events such as geomagnetic reversals, or based on the presence of specific fossils. According to the International Commission on Stratigraphy, the term "chronozone" refers to the rocks formed during a particular time period, while "chron" refers to that time period. ...

https://en.wikipedia.org/wiki/Chronozone

#Chronozone #UnitsOfTime #Paleobiology #Stratigraphy #Geochronology #Paleogeography

Just in time for
#FossilFriday: Fossil constraints on the origin and evolution of #Platyhelminthes are surprisingly concordant with modern molecular #phylogenies:

https://doi.org/10.1590/S1984-4689.v41.e24002

#flatworms

#paleobiology

#paleontology

#fossils

#paleoparasitology

#helminths

#flatworms

Mammalian Ancestors Shed Light on The Great Dying - As we move through the Sixth Extinction, it can be beneficial to examine what caus... - https://hackaday.com/2024/11/22/mammalian-ancestors-shed-light-on-the-great-dying/ #paleoclimatology #extinctionevent #carbondioxide #climatechange #paleobiology #paleontology #volcanology #science #climate #volcano #pangea #co2

#AnthroSky #anthropology #paleobiology www.livescience.com/archaeology/...

Ancient human ancestor Lucy wa...

Do you want to know how the structure of the rock record affects your reconstructions of #biodiversity, #evolution rates or trait evolution? The groundwork for doing this has been laid down in the field of #StratigraphicPaleobiology but until now no software tools have been available to researchers in #paleobiology and #geoscience to evaluate distortion of their #FossilRecord.

Join the webinar on Building modeling pipelines for stratigraphic paleobiology in #RSoftware by my PhD student @Niklas_Hohmann in the Paleoverse lecture series hhttps://palaeoverse.org/lectures this Thursday at 4 PM UTC to learn how to use the new package StratPal developed in my European Research Council (ERC) project #MindTheGap

You can find the package with extensive documentation here: https://mindthegap-erc.github.io/StratPal/
More on the project: https://mindthegap-erc.github.io/

If you are interested in working with us on #StratigraphicPaleobiology, structure of the fossil record, and development of #OpenSource research software, please get in touch!

Chronozone (Paleogeography 🦕)

A chronozone or chron is a unit in chronostratigraphy, defined by events such as geomagnetic reversals, or based on the presence of specific fossils. According to the International Commission on Stratigraphy, the term "chronozone" refers to the rocks formed during a particular time period, while "chron" refers to that time period. Altho...

https://en.wikipedia.org/wiki/Chronozone

#Chronozone #UnitsOfTime #Paleobiology #Stratigraphy #Geochronology #Paleogeography

A sorta exclusive for #TetZooCon 2024... we have Dave the Hone talking about his brand-new book DINOSAUR BEHAVIOUR, and - hopefully - we'll have copies present at the meeting ahead of the actual publication date. Woohoo! It features art by @serpenillus (who, sadly, isn't able to attend....) #dinosaurs #palaeobiology #paleobiology

A sorta exclusive for #TetZooCon 2024... we have Dave the Hone talking about his brand-new book DINOSAUR BEHAVIOUR, and - hopefully - we'll have copies present at the meeting ahead of the actual publication date. Woohoo! It features art by @serpenillus (who, sadly, isn't able to attend....) #dinosaurs #palaeobiology #paleobiology

A sorta exclusive for #TetZooCon 2024... we have Dave the Hone talking about his brand-new book DINOSAUR BEHAVIOUR, and - hopefully - we'll have copies present at the meeting ahead of the actual publication date. Woohoo! It features art by @serpenillus (who, sadly, isn't able to attend....) #dinosaurs #palaeobiology #paleobiology

A sorta exclusive for #TetZooCon 2024... we have Dave the Hone talking about his brand-new book DINOSAUR BEHAVIOUR, and - hopefully - we'll have copies present at the meeting ahead of the actual publication date. Woohoo! It features art by @serpenillus (who, sadly, isn't able to attend....) #dinosaurs #palaeobiology #paleobiology

A sorta exclusive for #TetZooCon 2024... we have Dave the Hone talking about his brand-new book DINOSAUR BEHAVIOUR, and - hopefully - we'll have copies present at the meeting ahead of the actual publication date. Woohoo! It features art by @serpenillus (who, sadly, isn't able to attend....) #dinosaurs #palaeobiology #paleobiology

Many people think the history of the Earth is hard to decipher. The geological record jumbles everything up. We set out to fact-check this in my ERC Starting Grant MindTheGap. Focusing on the mode of evolution, because that is something that we can only glean from long records, longer than anything accessible to observation or experimentation today.

Thanks to collaboration with Peter Burgess we used forward models to simulate formation of carbonate rocks and see how completeness and stratigraphic resolution affect the reconstructions. Guess what! The geological record is 👌🏻 With a bit of understanding of #sedimentology and #physics we can test is with computer experiments and it turns out even very patchy rock strata will let us reconstruct the correct mode of evolution. This opens a lot of possibilities, especially for the #microfossil community: your data is priceless to understand #microevolution.

Check out the results at https://lnkd.in/eeiSuRwP

Also a big shoutout to an excellent review process at PCI Paleo, the thoughtful editors and reviewers, and to the lead author Niklas Hohmann for #code #reproducibility effort that meets the most stringent standards. Check out our software at https://lnkd.in/eJkwhhuh

#evolution #paleontology #paleobiology #UtrechtUniversity

It's very satisfying to see the crown article of my first PhD student Bryan Shirley published! Skeleton is usually all that remains from an animal in the fossil record, so in order to find out how the animal functioned when alive, we have to squeeze out clues from the skeletal tissues, for example using advanced #ElectronMicroscopy 🔬. We were told that vertebrate tissues are too chemically unstable to study this way, but with the help of experts in microscopy, we were able to make rapid measurements of crystallography in the oldest #vertebrate hashtag#teeth to understand how they function evolved. Turns out the crystal orientation reflects the function! From the #ultrastructure we can estimate how the animals were biting and see their evolutionary adaptations at the level of individual crystals 💎 This was possible thanks to the facilities and funding by EXCITE network and Deutsche Forschungsgemeinschaft (DFG) - German Research Foundation

Now published #OpenAccess at https://rdcu.be/dLpbD
#UtrechtUniversity #evolution #biomineralization #paleontology #paleobiology #conodonts

A new perspective on the taxonomy and systematics of Arvicolinae (Gray, 1821) including #voles, #lemmings, and #muskrats and a new time-calibrated phylogeny for the clade:
https://peerj.com/articles/16693/ via @PeerJ #Evolution #paleobiology #phylogeny #Taxonomy

Tracking ‘transitional’ #diadectomorphs in the earliest #Permian of equatorial #Pangea

https://peerj.com/articles/16603/ via @PeerJLife

#paleobiology #ichnology #Palaeontology #fossilfriday

Stage (stratigraphy) (Paleogeography 🦕)

In chronostratigraphy, a stage is a succession of rock strata laid down in a single age on the geologic timescale, which usually represents millions of years of deposition. A given stage of rock and the corresponding age of time will by convention have the same name, and the same boundaries. Rock series are divided into ...

https://en.wikipedia.org/wiki/Stage_(stratigraphy)

#Stage #UnitsOfTime #Paleobiology #Geochronology #GeologicalAges #Paleogeography

Stage (stratigraphy) (Paleogeography 🦕)

In chronostratigraphy, a stage is a succession of rock strata laid down in a single age on the geologic timescale, which usually represents millions of years of deposition. A given stage of rock and the corresponding age of time will by convention have the same name, and the same boundaries. Rock series are divided into ...

https://en.wikipedia.org/wiki/Stage_(stratigraphy)

#Stage #UnitsOfTime #Paleobiology #Geochronology #GeologicalAges #Paleogeography

#Automatic identification and morphological comparison of #bivalve and #brachiopod #fossils based on #deeplearning https://peerj.com/articles/16200/ via @PeerJ https://doi.org/10.7717/peerj.16200 #Palaeontology #paleobiology #paleontology #EvolutionaryBiology #Taxonomy

#ConservationPaleobiology turns to #fossils of shells, teeth and pollen to help restore ecosystems
https://knowablemagazine.org/article/food-environment/2023/conservation-paleobiology-restoring-ecosystems

"Researchers use historic remnants like #antlers, #shells, #teeth and #pollen to learn how natural communities once worked. The clues serve as guides for restoration...

#Conservation #paleobiology is new enough that its insights are only starting to percolate through to the government agencies that make conservation decisions on the ground."

Description and phylogenetic relationships of a new species of Torvoneustes (Crocodylomorpha, Thalattosuchia) from the Kimmeridgian of #Switzerland

https://dx.doi.org10.7717/peerj.15512

#paleobiology #paleontology #JurassicLife #EvolutionaryStudies #Crocodylomorpha #fossils

https://peerj.com/articles/15512/ via @PeerJ

Morphological disparity of early #ammonoids: A geometric #morphometric approach to investigate conch geometry of Early–Middle Devonian ammonoids of the Moroccan Anti-Atlas by analysing the shape of their whorl profile:
http://dx.doi.org/10.4202/app.01033.2022

Study highlights that the increase in #disparity began earlier than the increase in #diversity, but found no evidence for an early burst of #shape diversity (i.e., the rise does not exceed expectations given diversity).

#paleobiology #paleontology

Morphological disparity of early #ammonoids: A geometric #morphometric approach to investigate conch geometry of Early–Middle Devonian ammonoids of the Moroccan Anti-Atlas by analysing the shape of their whorl profile:
http://dx.doi.org/10.4202/app.01033.2022

Study highlights that the increase in #disparity began earlier than the increase in #diversity, but found no evidence for an early burst of #shape diversity (i.e., the rise does not exceed expectations given diversity).

#paleobiology #paleontology

Morphological disparity of early #ammonoids: A geometric #morphometric approach to investigate conch geometry of Early–Middle Devonian ammonoids of the Moroccan Anti-Atlas by analysing the shape of their whorl profile:
http://dx.doi.org/10.4202/app.01033.2022

Study highlights that the increase in #disparity began earlier than the increase in #diversity, but found no evidence for an early burst of #shape diversity (i.e., the rise does not exceed expectations given diversity).

#paleobiology #paleontology

Morphological disparity of early #ammonoids: A geometric #morphometric approach to investigate conch geometry of Early–Middle Devonian ammonoids of the Moroccan Anti-Atlas by analysing the shape of their whorl profile:
http://dx.doi.org/10.4202/app.01033.2022

Study highlights that the increase in #disparity began earlier than the increase in #diversity, but found no evidence for an early burst of #shape diversity (i.e., the rise does not exceed expectations given diversity).

#paleobiology #paleontology

Parasite-induced shell damage in brachiopod Porambonites (Porambonites) laticaudata from the Late #Ordovician (Sandbian) of #Estonia

https://doi.org/10.3176/earth.2023.23

The pits in the shell margin are most likely caused by the presence of symbionts which benefitted from inhalant currents and caused damage to the host #brachiopod. This is consistent with #parasitism rather than previously know damage linked with failed attacks by durophagous #predators.

#paleontology #paleobiology #pathology

Exceptions to the temperature–size rule: no Lilliput Effect in end-Permian ostracods from Aras Valley (NW Iran)

Body size changes of ostracods in the Aras Valley section are evaluated in response to the drastic warming during the end-Permian mass extinction at three taxonomic levels: class, order, species. Individual species to instars do not show dwarfing similar to some experimental studies.

https://doi.org/10.1111/pala.12667

#paleobiology #paleontology #climatechange #ostracod #Permian #Triassic

@RadicalAnthro The south-western groundwater shrimp: "British cave shrimps have an ancient lineage. DNA evidence shows Niphargus species arose about 88 million years ago, 23 million years before the dinosaurs went extinct! Groundwater crustaceans were also amongst the few invertebrates that weathered the ice age in the UK. Living underground kept them insulated from the frozen surface. The British cave shrimp and its close Irish relative N.irlandicus are currently believed to be the oldest animal species in the British Isles, present for at least 19.5million years."

https://www.buglife.org.uk/bugs/bug-directory/british-cave-shrimp/

#paleontology #paleobiology #crustacea #amphipod #stygofauna

@RadicalAnthro The south-western groundwater shrimp: "British cave shrimps have an ancient lineage. DNA evidence shows Niphargus species arose about 88 million years ago, 23 million years before the dinosaurs went extinct! Groundwater crustaceans were also amongst the few invertebrates that weathered the ice age in the UK. Living underground kept them insulated from the frozen surface. The British cave shrimp and its close Irish relative N.irlandicus are currently believed to be the oldest animal species in the British Isles, present for at least 19.5million years."

https://www.buglife.org.uk/bugs/bug-directory/british-cave-shrimp/

#paleontology #paleobiology #crustacea #amphipod #stygofauna

@RadicalAnthro The south-western groundwater shrimp: "British cave shrimps have an ancient lineage. DNA evidence shows Niphargus species arose about 88 million years ago, 23 million years before the dinosaurs went extinct! Groundwater crustaceans were also amongst the few invertebrates that weathered the ice age in the UK. Living underground kept them insulated from the frozen surface. The British cave shrimp and its close Irish relative N.irlandicus are currently believed to be the oldest animal species in the British Isles, present for at least 19.5million years."

https://www.buglife.org.uk/bugs/bug-directory/british-cave-shrimp/

#paleontology #paleobiology #crustacea #amphipod #stygofauna

@RadicalAnthro The south-western groundwater shrimp: "British cave shrimps have an ancient lineage. DNA evidence shows Niphargus species arose about 88 million years ago, 23 million years before the dinosaurs went extinct! Groundwater crustaceans were also amongst the few invertebrates that weathered the ice age in the UK. Living underground kept them insulated from the frozen surface. The British cave shrimp and its close Irish relative N.irlandicus are currently believed to be the oldest animal species in the British Isles, present for at least 19.5million years."

https://www.buglife.org.uk/bugs/bug-directory/british-cave-shrimp/

#paleontology #paleobiology #crustacea #amphipod #stygofauna

@RadicalAnthro The south-western groundwater shrimp: "British cave shrimps have an ancient lineage. DNA evidence shows Niphargus species arose about 88 million years ago, 23 million years before the dinosaurs went extinct! Groundwater crustaceans were also amongst the few invertebrates that weathered the ice age in the UK. Living underground kept them insulated from the frozen surface. The British cave shrimp and its close Irish relative N.irlandicus are currently believed to be the oldest animal species in the British Isles, present for at least 19.5million years."

https://www.buglife.org.uk/bugs/bug-directory/british-cave-shrimp/

#paleontology #paleobiology #crustacea #amphipod #stygofauna

From 25 Apr: Has the “Tully monster” mystery finally been solved after 65 years? - Enlarge / Fossil of Tullimonstrum gregarium (“Tully’s common monster“). Its discovery in t... https://arstechnica.com/science/2023/04/has-the-tully-monster-mystery-finally-been-solved-after-75-years/ #biology #evolutionary-biology #fossils #paleobiology #paleontology #science #taxonomy #tully-monster

Observations on #heterodonty within the #dentition of the Atlantic Sharpnose #Shark, Rhizoprionodon terraenovae (Richardson, 1836), from the north-central Gulf of Mexico, USA, with implications on the #fossil record https://peerj.com/articles/15142/ via @PeerJ #paleobiology #sharks #MarineBiology #Taxonomy #Paleontology https://doi.org/10.7717/peerj.15142

Folks working on colonial organisms, we are organizing a topical session at GSA this year for you. "Better Together: Coloniality as a Way of Life and of Generating New Tools and Insights across Fields" Oct 2023

https://community.geosociety.org/gsa2023/home

#bryozoa #corals #graptolies #GeologicalSocietyAmerica #Paleontology #Paleobiology

🚨 Postdoc opportunity! Come and work with me on #whales and #ichthyosaurs 🐬🐬 For my project ECHO at the Natural History Museum in Oslo we are now hiring a 2.5 year #postdoc fully paid. Deadline April 30. I am happy to answer questions! #paleontology #paleobiology

https://www.jobbnorge.no/en/available-jobs/job/241550/postdoctoral-research-fellow-in-palaeobiology

Cool Conference Coming Up: 1st circular of the 3rd Crossing the #Palaeontological - #Ecological Gap (short #CPEG is out)

#hybrid, 28-31 August 2023 (hosted by the Vilnius University and Nature Research Centre, #Vilnius)

#conference #paleontology #palaeontology #paleobiology #ecology

#Registration by 1st of April 🗓️
#Abstract submission by 1st of April 🖋
#2nd circular by 1st of April 🙌

Please #share 💪🤓

https://www.cpeg2023vilnius.chgf.vu.lt/

Cool Conference Coming Up: 1st circular of the 3rd Crossing the #Palaeontological - #Ecological Gap (short #CPEG is out)

#hybrid, 28-31 August 2023 (hosted by the Vilnius University and Nature Research Centre, #Vilnius)

#conference #paleontology #palaeontology #paleobiology #ecology

#Registration by 1st of April 🗓️
#Abstract submission by 1st of April 🖋
#2nd circular by 1st of April 🙌

Please #share 💪🤓

https://www.cpeg2023vilnius.chgf.vu.lt/

Cool Conference Coming Up: 1st circular of the 3rd Crossing the #Palaeontological - #Ecological Gap (short #CPEG is out)

#hybrid, 28-31 August 2023 (hosted by the Vilnius University and Nature Research Centre, #Vilnius)

#conference #paleontology #palaeontology #paleobiology #ecology

#Registration by 1st of April 🗓️
#Abstract submission by 1st of April 🖋
#2nd circular by 1st of April 🙌

Please #share 💪🤓

https://www.cpeg2023vilnius.chgf.vu.lt/

Cool Conference Coming Up: 1st circular of the 3rd Crossing the #Palaeontological - #Ecological Gap (short #CPEG is out)

#hybrid, 28-31 August 2023 (hosted by the Vilnius University and Nature Research Centre, #Vilnius)

#conference #paleontology #palaeontology #paleobiology #ecology

#Registration by 1st of April 🗓️
#Abstract submission by 1st of April 🖋
#2nd circular by 1st of April 🙌

Please #share 💪🤓

https://www.cpeg2023vilnius.chgf.vu.lt/

Cool Conference Coming Up: 1st circular of the 3rd Crossing the #Palaeontological - #Ecological Gap (short #CPEG is out)

#hybrid, 28-31 August 2023 (hosted by the Vilnius University and Nature Research Centre, #Vilnius)

#conference #paleontology #palaeontology #paleobiology #ecology

#Registration by 1st of April 🗓️
#Abstract submission by 1st of April 🖋
#2nd circular by 1st of April 🙌

Please #share 💪🤓

https://www.cpeg2023vilnius.chgf.vu.lt/

PhD/masters students alert! 2023 Analytical Paleobiology Summer School in Erlangen Germany is on from 21 Aug - 8 Sep2023. Participation is free and accommodation costs will be covered by the Paleosynthesis Project. Application deadline is Feb 26. More info here https://www.paleosynthesis.nat.fau.de/index.php/science-schools/
Instructors include @rachelwarnock @eesaupe

Boost pls!

#paleobiology #evolution #phd #fossil #paleoecology #ecology #networkAnalysis #GeomtricMorphometrics #Morphometrics #paleontology #FAU #Germany

Upper Norian #conodonts from the Baoshan block, western Yunnan, southwestern China, and implications for #conodont turnover: https://peerj.com/articles/14517/ via @PeerJ #Biodiversity #EvolutionaryStudies #Paleontology
#Paleobiology

https://doi.org/10.7717/peerj.14517

Food for thought #Samples from higher #paleolatitudes were on average smaller, but contained #outliers with the largest #sizes, highlighting the need to analyze entire #distributions. #Lithology and #collection differences need to be accounted for when evaluating #size differences across #space (#polar #gigantism) and #time (#Lilliput #effect). Similarly, differences in #facies may affect #species #determination

https://doi.org/10.2110/palo.2021.063

#Paleobiology #Paleontology #Ecology #EvolutionaryBiology

Final publication of the year: #Lithology #Controls #Ammonoid #Size #Distributions with @Emiliagnathus; Stella Buchwald; Christian Klug and Dieter Korn: https://doi.org/10.2110/palo.2021.063 #Paleobiology #Paleontology #Ecology #EvolutionaryBiology

Open Position: Assistant #Professorship tenure track in #Digital #Paleobiology
100% @ the #Paleontological institute of the University of #Zürich #UZH

#paleobiology #paleontology #computedtomography #digitalisation #fossils #job #openposition #Evolution
@jobsecoevo

https://jobs.uzh.ch/offene-stellen/assistant-professorship-tenure-track-in-digital-paleobiology/e0cb1c91-a834-43ba-9cff-221cffefce5e