25-Mar-2026
Shell-cracking #turtles defied mass #extinction at the end of the #Cretaceous period

The asteroid impact at the end of the Cretaceous period caused one of the largest mass extinctions in Earth's history. But some organisms defied the catastrophe. For turtles, the chance of survival was apparently linked to their diet: species with a preference for hard-shelled organisms survived the catastrophic event. SNSB paleontologist Serjoscha Evers published the results of his study in the journal Biology Letters.
Shell-cracking #turtles defied mass extinction at the end of the #Cretaceous period https://phys.org/news/2026-03-shell-turtles-defied-mass-extinction.html #Paleoart by @JoschuaKnuppe
Ecological selectivity of diet on turtle K/Pg survivorship https://royalsocietypublishing.org/rsbl/article/22/3/20250790/481023/Ecological-selectivity-of-diet-on-turtle-K-Pg
"turtles that fed on hard-shelled organisms such as gastropods and bivalves survived the mass #extinction largely unscathed. And they were more than five times more likely to survive than turtles that hunted fish or that were purely herbivorous."
#NewSpecies!
New grasshopper from the lower cretaceous in #brazil just came in:
Cratomastax mariellaae
Treatment: https://treatment.plazi.org/id/3C188DEF-A3D0-59AC-A2DC-80C02B7A2211
Publication: https://doi.org/10.3897/contrib.entomol.76.e173923
#ContributionsToEntomology #CratomastaxMariellaae
#FAIRdata
#science #OA #openaccess #biology #taxonomy #ecology #biodiversity #nature #wildlife #conservation #fauna #animals #invertebrates #entomology #insects #orthoptera #grasshopper #fossils #fossilfriday #paleo #paleontology #cretaceous
RE: https://mastodon.green/@plazi_species/116142939438774146
What #amber #fossils can tell us about the early evolution of animal groups. Authors Hong-Yu Li et al. (2023) discovered several new genera and new species of #Mantispoidea from mid-#Cretaceous #Kachin #amber (#Myanmar). The new finds come from the still existing taxa Berothidae, Rhachiberothidae, Dipteromantispidae and Mantispidae. In the mid-Cretaceous #Rhachiberothidae e.g. were much more abundant and thus such fundings offer more insights into early #evolutionaryscenarios.
© StefanFWirth
Nový druh spinosaura, "volavka z pekla", Spinosaurus mirabilis, byl popsán v článku vydaném 19. února 2026 ve vědeckém časopise Science. Vybaveno nasálním hřebínkem, toto zvíře se určitě docela lišilo od druhu Spinosaurus aegyptiacus. Více o něm v nejnovějším příspěvku na blogu Blogorgonopsid!
#spinosaurus #mirabilis #paleontology #science #newspecies #dinosaurs #cretaceous #prehistory #fossil #discovery
https://blogorgonopsid.blogspot.com/2026/02/predstavuje-se-spinosaurus-mirabilis.html