@paleovert

Paleontólogo de vertebrados mexicano, interesado en dinosaurios y mamíferos fósiles - Mexican vertebrate paleontologist

 Aguascalientes, Mexico
mex.academia.edu/JoseRubenGuzmanGutierrez
Joined May 2009
  • Tweets13.9K
  • Following1.8K
  • Followers1.1K
268Media
phys.org/news/2026-10-fossil…

Fossil footprints reveal how dinosaur ancestors gradually shifted from sprawling to upright walking

A research team led by Dr. Lorenzo Marchetti of the Museum für Naturkunde Berlin described the earliest archosauriform footprints (Pachychirotherium gardenaensis) from the GEOPARC Bletterbach—UNESCO...

phys.org
23
phys.org/news/2026-10-year-e…

700,000-year-old elephant tooth reveals a lost ecosystem shared by early humans in the Levant

A remarkably preserved elephant tooth previously recovered from Gesher Benot Ya'aqov (GBY-NBA)—a prehistoric site in northern Israel where early humans made stone tools some 700,000 years ago—has now...

phys.org
32
Unos fósiles de Sudáfrica sitúan al Homo erectus hace unos 2 millones de años, los más antiguos atribuidos a esta especie de antepasado humano larazon.es/tecnologia-consum… a través de @larazon_es

Unos fósiles de Sudáfrica sitúan al Homo erectus hace unos 2 millones de años, los más antiguos...

Los restos fósiles de Drimolen ofrecen una nueva perspectiva sobre los primeros homininos y su compleja historia evolutiva

larazon.es
25
phys.org/news/2026-10-collag…

Rise of collagen-eating microbes may help explain gaps in the fossil record

Researchers may have uncovered the reason why some of Earth's earliest animals were commonly preserved as fossils—even though they were essentially fragile "bags of goo"—while later soft-bodied...

phys.org
1
23
Ruben Guzman retweeted
PaleoGalli@TwitiGalliSep 16
Uma água-viva macroscópica do Cambriano Inicial do sul da China nature.com/articles/s42003-0…
26
1
86
1,586
phys.org/news/2026-09-diplod…

First confirmed Diplodocus outside North America reshapes Late Jurassic migration picture

In a discovery that challenges our understanding of dinosaur distribution during the Late Jurassic period, paleontologists have identified the first evidence of the iconic Diplodocus outside North...

phys.org
1
26
Review of Cretaceous Avian Dinosaurs from Mexico: Current Knowledge and Future Perspectives mdpi.com/4061808 #mdpifossstud vía @FossilsMDPI @MDPIOpenAccess

Review of Cretaceous Avian Dinosaurs from Mexico: Current Knowledge and Future Perspectives

The fossil record of Cretaceous avian dinosaurs in Mexico remains limited compared with that of other vertebrate groups, but provides important evidence on the distribution, taxonomy, and paleoecol...

mdpi.com
3
5
212
nhm.org/stories/10-million-y…
36
The rise of carnivoran mammals in Europe through the lens of body mass royalsocietypublishing.org/r…

The rise of carnivoran mammals in Europe through the lens of body mass

Abstract. Carnivoran mammals (cats, dogs, bears, seals, etc.) and their kin radiated during the Palaeogene, among other carnivorous clades (hyaenodonts, me

royalsocietypublishing.org
39
phys.org/news/2026-08-rethin…

Rethinking how we name and classify our human ancestors following recent evolutionary discoveries

Recent advances in our understanding of human evolution challenge the way we currently name and classify our ancestors, according to new research from Monash University. The study, published in the...

phys.org
32
DNA reveals the hidden past of North America’s bison—and keys to their future | Science | AAAS science.org/content/article/…

DNA reveals the hidden past of North America’s bison—and keys to their future

Scientists are racing to conserve what remains of these majestic animals’ genetic diversity

science.org
28
phys.org/news/2026-08-gondwa…

Unlocking Gondwana's 120-million-year archive: Karoo record refines timing of extinctions and...

A new review led by professor Emese Bordy at the University of Cape Town (UCT) Department of Geological Sciences brings together more than two decades of research on the Karoo Supergroup, revealing...

phys.org
96
Archaeopteryx Took Off with Series of Hops, Not One Big Leap: Study | Sci.News sci.news/paleontology/archae…

Sci.News: Breaking Science News

Science news from Sci.News: astronomy, archaeology, paleontology, health, physics, space exploration and other topics.

sci.news
34
phys.org/news/2026-08-crocod…

Crocodiles can't fly. Birds can. Scientists have finally figured out why

The closest living relatives of crocodiles and alligators are, perhaps surprisingly, birds. Both are archosauriforms, a group of species that originated about 250 million years ago near the beginning...

phys.org
34
El Museo Nacional de Historia Natural de París ha recuperado fósiles de dinosaurios de hace 140 millones de años para mostrar, en una exposición temporal, los animales que poblaban lo que hoy es Francia. Vía EFE. Más en López-Dóriga Digital.
12
134
27,762
Cien años desenterrando gigantes: el siglo que cambió la historia de los dinosaurios de México | El Heraldo de Aguascalientes | Noticias Locales y Policiacas Hoy heraldo.mx/cien-anos-desente…

Cien años desenterrando gigantes: el siglo que cambió la historia de los dinosaurios de México

​

heraldo.mx
1
1
50
Muere el actor Sam Neill, protagonista de 'Jurassic Park', a los 78 años elespanol.com/el-cultural/ci… vía @elespanolcom

Muere el actor Sam Neill, protagonista de 'Jurassic Park', a los 78 años

El neozelandés tuvo una carrera de más de cinco décadas y 150 papeles. Destacó por su versatilidad para dar vida a personajes de 'blockbuster', drama histórico, películas de terror o comedia.Más...

elespanol.com
48
phys.org/news/2026-07-fossil…

Fossils found decades ago reveal extinct 3.5 million-year-old giant salamander species

In the late 1990s in the Ajimu region of Japan's Oita Prefecture, researchers discovered three fossilized vertebrae belonging to the Cryptobranchidae family of giant salamanders. These were embedded...

phys.org
36
Hemisphere-wide evidence of Early Paleoindian megaherbivore specialization | Science Advances science.org/doi/10.1126/scia…

Hemisphere-wide evidence of Early Paleoindian megaherbivore specialization

The three earliest continent-wide cultures in the Americas focused on the largest prey, like mammoths and giant ground sloths.

science.org
1
1
1
157
Direct development of stem tetrapods across the fin-to-limb transition | Science science.org/doi/10.1126/scie…

Direct development of stem tetrapods across the fin-to-limb transition

Modern amphibians are characterized by an aquatic larval stage that ends abruptly with a period of widespread tissue remodeling (metamorphosis) upon transition to terrestrial adulthood. A transient...

science.org
47
Load more