Dr. Claudia Serrano

Paleontologist studying Cretaceous dinosaurs from Mexico. Loves taphonomy, paleoecology and ichnology. Research associate at BENC and @NMNH.

[Dr. Claudia Serrano @paleoduck]

Digging dinosaurs is so cool!!!

[The Anatomical Record @AnatRecord]

A second theropod tooth from the Cauvery Basin reaffirms the presence of troodontid dinosaurs in the Cretaceous of India.
Study by Harsha Dhiman et al.:
https://t.co/aRU0oDNrFS
#FossilFriday

[Science Magazine @ScienceMagazine]

A new analysis in Science of more than 116,000 bird songs has revealed that the astonishing variety of passerine birdsong is built from just eight basic acoustic motifs, like trills, whistles, and harmonic notes.

The findings also reveal that local environments greatly shape how birds communicate around the world. Learn more: https://t.co/3oaQ0sKQfJ

[Alessandro Chiarenza @AAlechiarenza]

If you are interested in a non-technical summary of our recent paper on how Cretaceous monsoons, tropical cyclones and tides created the exceptional Villaggio del Pescatore dinosaur fossil site, check out this piece I wrote for @ConversationUK : 🦖🌪️

https://t.co/rsVbNuiqw7

[Paléontologie @PaleontologieFr]

Un reptile🦎de 240 Ma découvert au Brésil🇧🇷 éclaire l'origine des archosaures !
#Silescelida est un proche parent des ancêtres des #dinosaures et des crocodiles, comblant une étape clé de l'évolution.
#Trias #Archosauriformes

📰https://t.co/Zs54HDzUIH

🔎https://t.co/63jlR427yv

[Paléontologie @PaleontologieFr]

🦖 Un jeune #Gorgosaurus découvert en Colombie-Britannique 🇨🇦 étend l'aire connue de ce cousin du T. rex !
Ses dents montrent aussi que son régime alimentaire changeait en grandissant.
#Crétacé #Campanien #Tyrannosauridae

📰 https://t.co/2I9ypsgAN7

🔎 https://t.co/NiHYZHSVWP

[Tiago R. Simões @paleoTsimoes]

Proud to share our latest paper in out in @Nature today on the origin of #snakes. We present Tametara mirim, an articulated 3D preserved stem snake from the Late Cretaceous of Brazil.
https://t.co/xDpmasr9E7

[Thomas R. Holtz, Jr. 🦖💕 (he/him) @TomHoltzPaleo]

Mays, C. Extreme warming fans the flames during mass extinctions. Nat. Geosci. (2026). https://t.co/7kjLOoNFyS

[Thomas R. Holtz, Jr. 🦖💕 (he/him) @TomHoltzPaleo]

Triassic Inferno: Fires raged across Europe for thousands of years during past global warming, via @EurekAlert! https://t.co/EDZURdcvi2

[Jack Inmortal @JustinoMoral]

La pendeja inmunda y su demagogia.

Tiene no menos de 20 aeronaves de la fuerza aérea y la marina capaces de llevarla en un vuelo directo desde cualquier ciudad del país a NY.

Pero en cambio, le hace a la mamada y sucede esto.

Adivinar si no fue ella misma quien hizo que se cancelara el vuelo para tener un pretexto para no asistir; no sería la primera vez que lo hace.

Zurdos de mierda, son patéticos.

[PEDRO FERRIZ @pedroferriz3]

Por ahí, ella comienza a circular el rumor desde #palacionacional que la presidente @claudiashein aplicará la del pato Merlín

Van a argumentar que se canceló el vuelo para utilizar el #G550 de la #SEDENA en lugar de irse en avión comercial en clase, turista, como lo dicta a la justa medianía

[Jim Kirkland @Paleojim]

#FossilFriday The holotype and paratype of the new species of Hoplitosaurus have dorsal osteoderms with distinct "invertebrate" induced pathologies that clearly different from the irrgular "fungal-bacterial" pathologies in the older Gastonia. @Paleontologizin @CanSVP

[Thomas R. Holtz, Jr. 🦖💕 (he/him) @TomHoltzPaleo]

The origin of Cretaceous-Palaeogene impactor revealed by nickel isotopes | Science Advances https://t.co/TasNY9cSQX

[Thomas R. Holtz, Jr. 🦖💕 (he/him) @TomHoltzPaleo]

The earliest amber from the Middle Devonian of China | Science Advances https://t.co/mA9y7HWsHq

[Hildoceras🇵🇸 @HildoBifrons]

DEVONIAN AMBER!!!!!!!!!!!!!!!!
DEVONIAN AMBER!!!!!!!!!!!!!!
DEVONIAN AMBEEEEEEEEEEEEEEEEEEEEEER!!!!!!!
AHHHHHHHHHHHHHHHHH!!!!!!!!!!!

(Maybe from Progymnosperms like the featured Tetraxylopteris)

[The earliest amber from the Middle Devonian of China]
https://t.co/mW1648mr8J

[Thomas R. Holtz, Jr. 🦖💕 (he/him) @TomHoltzPaleo]

C. T. Siviero B, Rega E, McLain MA, Brand LR, Nelsen D, Chadwick AV (2026) Identification of tooth traces from a Cretaceous (Maastrichtian) Edmontosaurus annectens bonebed in the Lance Formation, Wyoming, U.S.A. PLoS One 21(7): e0351939. https://t.co/YhXrysYLNr

[Thomas R. Holtz, Jr. 🦖💕 (he/him) @TomHoltzPaleo]

How does the inner structure of the limb bones of aquatic birds relate to their locomotor abilities? - Segesdi - The Anatomical Record - Wiley Online Library https://t.co/LJRnK9iBr5

[Andrej Spiridonov @AndrejSpiridon4]

Why do the birds have such a distinct egg shape, in comparison to other dinosaurs?

[Thomas R. Holtz, Jr. 🦖💕 (he/him) @TomHoltzPaleo]

Ichthyosaur and whale rib microstructure https://t.co/UWJ9Pv5g6z via @PeerJLife

[Thomas R. Holtz, Jr. 🦖💕 (he/him) @TomHoltzPaleo]

Hatchlings of Tyrannosaurus rex and the Evolution of Dinosaur Reproductive Strategies https://t.co/8RrWtiN0Nc #mdpibiology via @Biology_MDPI

[Andrej Spiridonov @AndrejSpiridon4]

This is really interesting. The common cause (of evolution, environmental change, taphonomy) does deep:
"Monsoon-driven storms created a Cretaceous dinosaur Lagerstätte.
Microbial mats enabled rapid sealing and exceptional soft-tissue preservation."
CC: @CoelhoPre @PalaeoPhilo