Gabriel A. Martínez-Ruiz
@gmdaspleto.bsky.social
Undergrad at the University of Puerto Rico majoring in biology and geology. Interested in comparative anatomy and physiology.
How ancient are the building blocks of animal sensory systems? Key components of animal sensory systems evolved before animals. We find that choanoflagellates possess diverse & spatially segregated TRP channels, pointing to ancient origins of sensory specialization. doi.org/10.64898/202...
The periosteum is the outermost layer of tissue covering your bones. This #OpenBiology review proposes a modern framework in which the periosteum is reconsidered as an endocrine organ with implications for bone growth, homeostasis and regeneration: doi.org/10.1098/rsob... #CellBiology
More support for ancient archosaurs possessing lips! onlinelibrary.wiley.com/doi/full/10....
Inferred presence of extraoral tissues in Triassic archosauromorphs and the evolutionary implications for the clade Sauropsida
Recent work has suggested that the presence of extraoral soft tissues (‘lips’), in the form of labial scales in theropod dinosaurs, could be inferred based on: anteroposteriorly distributed foramina ....
onlinelibrary.wiley.com
New #DAWNDINOS paper! Another "here's everything relevant about a cool Triassic/early Jurassic archosauriform's locomotion that we can figure out so far, with a 3D model of it"-- this time focused on the big nasty "rauisuchian" Postosuchus. onlinelibrary.wiley.com/doi/10.1111/...
Functional morphology and biomechanics of the locomotor apparatus in the large Late Triassic carnivore Postosuchus kirkpatricki (Archosauria: Rauisuchidae)
A three-dimensional model is used to analyze the locomotor biomechanics of the large Late Triassic archosaurian reptile Postosuchus kirkpatricki. The study finds that it is more uncertain than previo...
onlinelibrary.wiley.com
"Our findings provide evidence that bumble bees can exhibit spontaneous problem-solving, challenging the notion that such advanced cognitive abilities are exclusive to large-brained vertebrates." 🧪
Olli Loukola@olliloukola.bsky.social · 2mo agoSpontaneous problem-solving in bumble bees | Science www.science.org/doi/10.1126/...
A new Science Advances study led by Sanaa El-Sayed reveals that many modern fish groups were already diversifying in Egypt less than 4Ma after the extinction of the dinosaurs, providing a rare glimpse into the recovery of ancient marine ecosystems. www.science.org/doi/10.1126/sciadv.aec8978
Our paper on turtle origins is finally out in Current Biology, with two major implications for our understanding of reptile evolution 🐢 #Paleontology #Turtles #Evolution www.cell.com/current-biol...
Cranial osteology and ontogenetic variation of the Late Cretaceous ankylosaurid dinosaur Pinacosaurus grangeri academic.oup.com/zoolinnean/a...
Cranial osteology and ontogenetic variation of the Late Cretaceous ankylosaurid dinosaur Pinacosaurus grangeri
Abstract. Pinacosaurus grangeri is among the best-known ankylosaurids from the Late Cretaceous of Asia, yet most of the available information is based on j
academic.oup.com
Our special issue of the @journalofanatomy.bsky.social (co-edited by Virginia Abdala and me) on the evolution of joints in vertebrates is out now — check it out! onlinelibrary.wiley.com/toc/14697580...
Really exciting to see our new review published! This review explores the evolutionary history of the extra-embryonic endoderm, an evolutionarily ancient tissue co-opted to form the yolk sac, and explores how in vitro models are uncovering its biology. Check it out here: doi.org/10.1242/dev....
The vertebrate yolk sac: evolutionary origins and current advances in in vitro models
Summary: This Review examines the evolutionary history of the extra-embryonic endoderm, an evolutionarily ancient tissue co-opted to form the yolk sac, and explores how in vitro models are uncovering ...
doi.org
Otodus megalodon #paleoart commission!! (definitely not a generalized ginormous lamniform) i love how silly sharks look
You can now watch the Surviving Earth trailer here! Let’s have a look at it 🧵 screenrant.com/nbc-survivin...
Jurassic Park Meets Armageddon In NBC’s Trailer For Epic 8-Part Docuseries (Exclusive)
Get ready for another landmark documentary!
screenrant.com
Irritator challengeri, the best preserved Spinosaurus skull ever discovered, is finally heading home to Brazil! The announcement comes years after tireless attempts from Brazilian scholars to see the fossil repatriated from a German museum. #Paleontology #Spinosaurus 🧪🧪 New at @science.org
Famed Brazilian spinosaurid fossil finally heads home
Germany and Brazil reach agreement over controversial fossil, heralding new collaboration between the two nations
science.org
1/10 🚨🚨🚨 New paper on dinosaur evolution! Chris Griffin and I look at why we can't seem to figure out how the major groups are related! It might be a hint about how dinosaurs came to be! Photo: Anchisaurus @yalepeabodymuseum royalsocietypublishing.org/rspb/article...
Excited that my paper on a Jurassic fish with teeth on its nose is now out! Shoutout to my co-authors Ben Kligman and Maranda Stricklin, who is another all-star undergraduate mentee. onlinelibrary.wiley.com/doi/epdf/10....
A bristle‐nosed Jurassic ray‐finned fish (Actinopterygii) bears true dermal odontodes on its snout
Reader environment loaded
onlinelibrary.wiley.com
Been thinking marine-reptiley thoughts today. Here's one of my latest #paleoart efforts along that line: Tylosaurus proriger. The colour is based on fossil colour data, although it's far from certain that this animal was black and countershaded. Print link: www.markwitton.co.uk/product-page...
New information on the holotype of “Chasmosaurus” russelli (Ornithischia: Ceratopsidae) necessitates the establishment of a new genus to receive the species cdnsciencepub.com/doi/10.1139/...
New information on the holotype of “Chasmosaurus” russelli (Ornithischia: Ceratopsidae) necessitates the establishment of a new genus to receive the species
Although the holotype of Chasmosaurus russelli Sternberg, 1940, from the upper Dinosaur Park Formation of southern Alberta, shares features with other Chasmosaurus Lambe, 1914 specimens from Dinosaur ...
cdnsciencepub.com
Delighted to see this paper from my former MSc student Elías Warshaw now published - Big Congrats to him on getting his dissertation published!👏👏👏 The study explores how constraints & ecology shaped Permian #synapsid skull #evolution ⬇️ 🔗 www.nature.com/articles/s42... #Paleontology #Science
Trophic ecology outweighed intrinsic constraints in shaping skull evolution of carnivorous Permian synapsids - Communications Biology
Anatomical network analysis and morphometric methods illuminate the influences of functional adaptation and developmental constraint on the evolution of cranial form in carnivorous Permian synapsids.
nature.com
Join us for our first CNB virtual mini symposium 🐓🏃🏻♀️! future events suited to additional time zones coming soon; join our mailing list on our website (link in flyer) to stay in the loop.
Latest paleoart watercolor is Daemonosaurus. Felt compelled to make this after learning Dr. Hans Sues, who described and named this dinosaur, passed. 🎨🦖
New paper! How weird could Permian animals get? Turns out, pretty weird. Meet the stem tetrapod Tanyka amnicola from the Pedra de Fogo Formation of northeast Brazil royalsocietypublishing.org/rspb/article...
Very quick rough sketch of the newly described spiky Hadrosauroid dinosaur Haolong dongi I had to at least rough sketch this beauty! #paleoart #sciart #dinosaurs
Gigantoraptor #Paleoart Coloration based in the Brown lory, specifically individuals with blue-ish tones, thanks to @claudia-sahm.bsky.social for suggesting that!
Download the Open Access paper here: link.springer.com/article/10.1...
“King of the Riverside”, a multi-proxy approach offers a new perspective on mosasaurs before their extinction - BMC Zoology
BMC Zoology - The discovery of a mosasaurine tooth (NDGS 12217) in the Hell Creek Formation, Morton County, North Dakota, adds to the growing evidence that mosasaurs, traditionally considered...
link.springer.com
