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Luis Collantes @luiscollantes.bsky.social · 1d

#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 · 3d

A new paper by Yunnan Key Laboratory for Palaeobiology!

Luis Collantes @luiscollantes.bsky.social · 3d

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 · 3d

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 · 6d

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 · 6d

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 · 6d

Baby Ammonite, do doo do do do doo

🇷🇴 Agighiol

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Reposted by Luis Collantes

Zoltán Sylvester @zzsylvester.bsky.social · 8d

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 · 13d

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 · 14d

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 · 14d

🦀🌊 ¡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 · 15d

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 · 20d

Cumbres Mayores.

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Luis Collantes @luiscollantes.bsky.social · 21d

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 · 21d

PD: fotos cortesía de Sara Romero (UCM).

Luis Collantes @luiscollantes.bsky.social · 21d

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 · 21d

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

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Reposted by Luis Collantes

Geology Johnson @geologyjohnson.bsky.social · 22d

Interpretive sketch of a Proterozoic #fossil. This is a very badly preserved version, or taphomorph, of the fossil I posted the other day. This one was trapped in a microbial mat before burial to higher temperature and pressure than the other example. #Geology #Paleontology

Left: electron microscope image of a fossil that looks like a fuzzy flattened egg. Right: an interpretive black ink sketch of the fossil showing the complex surface texture. The fossil is about 0.15 mm wide.

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Reposted by Luis Collantes

David Clark @clarkeocrinus.bsky.social · 22d

This is a partial Gabriceraurus, but it's flipped upside down. The hypostome or mouthpiece is preserved in place, so this was likely a dead trilobite, not a molt. It is Ordovician aged from the Bobcaygeon Fm. of Ontario.

#TrilobiteTuesday

Upside down trilobite with mouthpiece still attached.

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Reposted by Luis Collantes

Dr Thomas Clements @taphonomist.bsky.social · 22d

Really interesting and excellently executed taphonomic study alert!

The authours designed neat insect disarticualtion experiments to better understand preservational patterns of insect found in the Crato Formation, Brazil. 🪰🪳🦟

Very very cool work by Storari et al.
journals.plos.org/plosone/arti...

Taphonomy of aquatic insects from the Crato Formation Lagerstätte (Aptian, Lower Cretaceous) under an actualistic look

The Crato Formation (Aptian, Lower Cretaceous) is a fossiliferous deposit of global significance, representing a lacustrine palaeoenvironment which offers insights into aquatic insect taphonomy. Despi...

journals.plos.org

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Reposted by Luis Collantes

Instituto de Geociencias (CSIC-UCM) @igeociencias.bsky.social · 22d

Físicos de la @ucm.es @fisicas-ucm.bsky.social y el @igeociencias.bsky.social evalúan la eficacia de QuakeUp: el innovador Sistema de Alerta Sísmica Temprana para la Región Ibero-Magrebí
igeo.ucm-csic.es/fisicos-de-l...

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Luis Collantes @luiscollantes.bsky.social · 23d

PD: ni una sola mención, ni una sola imagen de los que de verdad han hecho posible esto. Ni siquiera una foto del estratotipo como tal.

Sólo una foto de politicuchos inútiles que no saben ni a qué están mirando.

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Luis Collantes @luiscollantes.bsky.social · 23d

La Junta presenta en Cazalla de la Sierra el primer Estratotipo Global de Límite declarado en Andalucía

www.diarioavanza.es/articulo/pro...

La Junta presenta en Cazalla de la Sierra el primer Estratotipo Global de Límite declarado en Andalucía

Coloca, una vez más, al Parque Natural Sierra Morena de Sevilla en la exclusiva lista de lugares destacados en la geología mundial

www.diarioavanza.es

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Reposted by Luis Collantes

IPC7 @ipc7.bsky.social · 25d

IPC7 will host 29 themed symposia plus one open general symposium.

🌟Today we feature:
Ichnology – traces as multi-disciplinary lenses into the deep past

For participation or further details:
Miengah Abrahams — [email protected]
Emese Bordy — [email protected]

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Reposted by Luis Collantes

Íñigo Vitón @vitoninigo.bsky.social · 26d

🔓 Now in Open Access! (published in May)

We describe Echioceras, Paltechioceras and Leptechioceras #ammonite species, discussing the biochronostratigraphy and palaeobiogeography in NW Iberia during the upper Sinemurian #Jurassic #FossilFriday @springernature.com

🔗 doi.org/10.1007/s415...

Plate included in the paper, showing Plesechioceras, Echioceras and Paltechioceras species from the Raricostatum Zone (Sinemurian, Lower Jurassic) of the NW Iberia.

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