Um fóssil de pterossauro de 113 milhões de anos, descoberto no nordeste do Brasil, revelou novas informações sobre sua dieta. A pesquisa liderada pela Professora Kliti Grice indicou que o animal se alimentava principalmente de peixes e cefalópodes, com a presença de tecidos moles e moléculas orgâ...

🔗 https://omniletters.com/fossil-pterossauro-dieta/

#pterossauro #fossil #dinossauros #arqueologia #cientificas

#52wochenfotochallenge #perspektivwechsel & #FotoVorschlag #beschirmt & #fossilfriday

Bei der #Hitze und diesen Hashtags tauchen wir zur #Abkühlung mit einem #Fossil ins #Urmeer des frühen Devons vor 410 Millionen Jahren: Dies ist der Kopf der #Seelilie Scyphocrinites elegans. Seelilien sind mit #Seestern u.Co. verwandt, sitzen meist mit einem Stiel am Meeresgrund fest und grabschen mit ihren Armen im Wasser nach Nahrung. Die Bojen-Seelilie trieb stattdessen kopfüber im offenen Ozean! 🤸‍♀️

18-Jun-2026
This perfectly preserved #pterosaur wing just rewrote the #fossil rulebook

https://www.eurekalert.org/news-releases/1132311

#science #paleontology #evolution

SQLite 제작자 Richard Hipp이 말하는 26년의 코드와 오픈소스 철학

SQLite는 함정 손상 제어 시스템의 신뢰성 문제를 해결하기 위해 별도 프로세스 없이 디스크에서 직접 데이터를 읽는 방식으로 시작되었다.

🔗 원문 보기

This week for #Fossilfriday we have another #Guess that #Lego #Fossil.

This one I would rate as medium. This ceratopsian is known from Utah.

Hide your guesses behind a content warning, so others can guess without being spoilt. I will post the answer tomorrow (and to anyone who guesses correctly).

The body was designed by kongzilla and the new skull by me.

So if I understood this article correctly, the key conclusion is this - metamorphosis was not the condition for moving onto land?

The traditional picture was:

Tetrapods could leave water because they first evolved a tadpole-like larval stage and then metamorphosed.

The new interpretation suggested by these fossils is closer to:

Tetrapods gradually adapted to land over evolutionary time, and they probably did not need a frog-like metamorphosis to do it.

In other words, metamorphosis was probably not a prerequisite for terrestrial life. Instead, the transition from water to land appears to have been a long, gradual evolutionary process affecting the whole life cycle, rather than depending on a distinct larval stage.

Analogy of two possible scenarios:

Old model

• Young live in water.
• Undergo a major developmental transition.
• Adults become adapted to life on land.

New model

• Young and adults share the same basic body plan.
• Land adaptations accumulate gradually over millions of years (generations).

So the narrative shifts from:

Metamorphosis enabled the move onto land

to:

The move onto land happened gradually, and amphibian-style metamorphosis likely evolved later as a specialized adaptation.

https://www.404media.co/a-new-fossil-discovery-just-rewrote-150-years-of-evolutionary-theory

#Biology #Evolutionary #EvolutionaryBiology #Fossil #Discovery #Metamorphosis #Tetrapods #Science

Triodus, a xenacanthid (stem-group) shark from the Early Permian. Some may have performed a catfish-like lifestyle. Where large amphibians were absent, Xenacanthidae took the role as apex predators in rivers and lakes some 290 million years ago.

#shark #paleontologie #digitalArt #palaeozoic #fossil #wissenschaft #earthhistory #permian #illustration