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Reposted by Luis Collantes

D. Allan Drummond @dadrummond.art · 14h

In the final hours of #WorldFossilDay please enjoy some very real Olenellus trilobites being visited by my massive bronze reconstruction including all the legs and gills. #sciart

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Luis Collantes @luiscollantes.bsky.social · 11h

🇬🇧Using biomass ash and fish waste to remediate soils degraded by mining.

🇪🇸Cenizas de biomasa y restos de pescado para la enmienda de suelos degradados por la minería.

Cenizas de biomasa y restos de pescado para la enmienda de suelos degradados por la minería

Investigadores de las universidades de Huelva y Granada han encontrado una solución sostenible para remediar suelos impactados por…

medium.com

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Reposted by Luis Collantes

Jo Wolfe, PhD @jopabinia.bsky.social · Oct 11

National Fossil Day 🧪
The Cambrian fossil Opabinia was thought to be a weird wonder unrelated to any species. New data shows it was cousin to arthropods! We described 2 new species last year & they survived 40 mill yrs! 😍
Art @franzanth.bsky.social
Papers tinyurl.com/mr2c73kd &
tinyurl.com/yvar544a

Utaurora comosa reconstruction by Franz Anthony. It is a soft bodied but arthropod like creature, with lateral flaps instead of legs, dorsal furrows instead of segments, and big tail fan. It has a proboscis and (speculative based on Opabinia) 5 eyes

Mieridduryn bonniae reconstruction by Franz Anthony. It is a tiny (under 13 mm) soft bodied but arthropod like creature, with lateral flaps and spiny lobopodian legs, dorsal furrows instead of segments. It has a spiny proboscis and "hat" which may be some kind of head carapace. 2nd individual shown is 3 mm and may be a larva

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Reposted by Luis Collantes

Dave Rodland @daverodland.bsky.social · 1d

Got distracted and missed mollusk Monday, so I guess I have to jump to #TrilobiteTuesday. 🧪⚒️

This is a lovely example of Rusophycus on display at the Cincinnati Museum Center, illustrating predator / prey dynamics of the Ordovician. To wit: a trilobite scooped a worm out of its burrow to feed!

Cincinnati Museum Center exhibit on the trilobite trace fossil Rusophycus carleyi: an impression of the underside of a trilobite with inward curving grooves excavated by the legs scooping soft sediment in search of food. The trace intersects a worm burrow, implying a successful hunt.

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Reposted by Luis Collantes

Dr. Davey F. Wright ⛏️🦕🧬 @daveyfwright.bsky.social · 2d

Absolutely jaw dropping, spectacularly preserved & beautiful fossil crinoid (left) and blastozoan (right) echinoderms. These fossils are from the Bromide Fm of Oklahoma and nearly all specimens shown here are from the type collection at the Sam Noble Oklahoma Museum of Natural History 🧪

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Reposted by Luis Collantes

The Palaeontological Association @thepalass.bsky.social · 2d

👀 Don’t miss out! Explore our calendar of other societies’ conferences 📆
🔸Got a meeting coming up? 💬 Submit it here 👉 palass.org/add-future-meeting

#website #palass #conference #calendar

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Reposted by Luis Collantes

Charnwood Forest Geopark @charnwoodforest.bsky.social · 2d

🔎 The Geopark and our partners are looking for two researchers to join exciting and innovative projects, funded by the Collaboratory Research Hub:

🌳 PhD on nature & wellbeing
🦖 Research Placement on public understanding of fossils

🌐 More info on our website: www.charnwoodforest.org/collaborator...

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Luis Collantes @luiscollantes.bsky.social · 7d

Aracena acoge las 40ª Jornadas de la Sociedad Española de Paleontología

www.huelvainformacion.es/huelva/arace...

Aracena acoge las 40ª Jornadas de la Sociedad Española de Paleontología

Más de 150 investigadores procedentes de todo el mundo se reúnen en este congreso, que se celebra por primera vez en la provincia de Huelva

www.huelvainformacion.es

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Luis Collantes @luiscollantes.bsky.social · 9d

#TrilobiteTuesday

Belka et al. - A meeting in the cave: Taphonomy and ecology of scutelluid trilobites in the Devonian Hamar Laghdad elevation, eastern Anti-Atlas, Morocco

doi.org/10.1016/j.pa...

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Luis Collantes @luiscollantes.bsky.social · 11d

A new paper by Yunnan Key Laboratory for Palaeobiology!

Luis Collantes @luiscollantes.bsky.social · 11d

O’Flynn et al. - Oura megale n. gen. n. sp., a large early Cambrian deuteropod with a delta-shaped tailpiece

doi.org/10.26879/1547

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Luis Collantes @luiscollantes.bsky.social · 11d

O’Flynn et al. - Oura megale n. gen. n. sp., a large early Cambrian deuteropod with a delta-shaped tailpiece

doi.org/10.26879/1547

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Reposted by Luis Collantes

John P. Friel, Ph.D. @friel.bsky.social · 13d

A new study of 65-million-year-old crab and shrimp #fossils from central Alabama has identified new species and genera. One of the newly named crabs is dedicated to Coach Nick Saban, honoring his achievements for The #UniversityOfAlabama and the state. #RollTide

almnh.museums.ua.edu/meteorite-su...

Carapace of the new, ~65-million-year-old crab Costacopluma nicksabani with a 2 mm scale bar. Photo: Dr. Adiel Klompmaker

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Luis Collantes @luiscollantes.bsky.social · 14d

Dai et al. - The first complete developmental case of ptychopariid trilobite

doi.org/10.1016/j.pa...

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Reposted by Luis Collantes

Dr Jack J Matthews @jackjamesmatthews.bsky.social · 14d

Baby Ammonite, do doo do do do doo

🇷🇴 Agighiol

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Reposted by Luis Collantes

Zoltán Sylvester @zzsylvester.bsky.social · 16d

Last week I was co-leading a field trip in Utah, to check out some fluvial and eolian rocks. It was exhausting but fun and forced me to think more carefully than before about complex bedforms. This is a 3D model of one of the many stunning exposures of the Navajo Sandstone near Escalante 🧪⚒️

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Reposted by Luis Collantes

Richard Dearden @euphanerops.bsky.social · 21d

Living sharks have innumerable tiny scales, but their earliest relatives somehow grew larger bony plates. In our new Biology Letters @royalsocietypublishing.org, we work try and out how, arguing they grew by fusing and remodelling spines and scales.

doi.org/10.1098/rsbl...

Reconstruction of an early shark relative, a fish with a blunt head and with fins supported by spines. Image by Plamen Andreev.

Images of growth of the bony plate of an early shark relative.

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Reposted by Luis Collantes

Geology Johnson @geologyjohnson.bsky.social · 22d

Digital sketch of a #Precambrian microfossil based on SEM data. The different colours represent different scales of detail. The fossil is about 100 microns wide. #Geology #Paleontology

Digital sketch of a microfossil that looks like a brussel sprout. The fossil is drawn in red, green, orange, and tourqoise lines that represent the outer wall (red) through to the smallest visible texture (turqoise)

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Reposted by Luis Collantes

museonat.bsky.social @museonat.bsky.social · 22d

🦀🌊 ¡Nuevos #fósiles para los mares del #Pirineo! Un equipo de investigadores ha descrito 2 nuevos géneros de #cangrejos en #Huesca: museonat.es/mares-huesca...

👉 Descubre cangrejos fósiles tan fascinantes como los de esta investigación en nuestra Colección Paleontológica 🏛️

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Reposted by Luis Collantes

The Palaeontological Association @thepalass.bsky.social · 23d

Oldest winged insects: first Megasecoptera from the early Carboniferous (Serpukhovian) of Argentina onlinelibrary.wiley.com/doi/10.1111/...

Photograph of a fossil insect wing. Xenoptera latigra from Guandacol 1 locality, Quebrada de las Libelulas, Cerro Guandacol, province of La Rioja, central-western Argentina. Scale bar in lower right corner is 2 mm.

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Reposted by Luis Collantes

David Clark @clarkeocrinus.bsky.social · Aug 8

A shovel nosed Spathacalymene trilobite from the Silurian Massie Fm. of Indiana. These trilobites are usually found upside down, so you can only see the outside edge in the field.

There's lots of speculation on the purpose of the shovel. Maybe to stir up the ocean floor sediment.

#FossilFriday

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Luis Collantes @luiscollantes.bsky.social · 28d

Cumbres Mayores.

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Luis Collantes @luiscollantes.bsky.social · 29d

PD2: enlace de RG al paper del GSSP (el original de Episodes da error por algún motivo): www.researchgate.net/publication/...

(PDF) The replacement Global Stratotype Section and Point (GSSP) of the Telychian Stage of the Llandovery Series, Silurian System, at El Pintado (Spain)

PDF | On May 1, 2025, David K. Loydell and others published The replacement Global Stratotype Section and Point (GSSP) of the Telychian Stage of the Llandovery Series, Silurian System, at El Pintado (...

www.researchgate.net

Luis Collantes @luiscollantes.bsky.social · 29d

PD: fotos cortesía de Sara Romero (UCM).

Luis Collantes @luiscollantes.bsky.social · 29d

Los auténticos responsables del establecimiento del primer estratotipo andaluz (que, por desgracia, no salen tanto como los politicuchos que asistieron a poner la cara para la foto).

Izquierda: J.C. Gutiérrez-Marco dando los primeros mantillazos del clavo dorado.

Derecha: los miembros de la ISSS.

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Luis Collantes @luiscollantes.bsky.social · 29d

Here some Cambrian pillow-lavas from Huelva province, SW Spain:

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