Lmst

"Four-legged animals first moved onto land about 375 million years ago, during the Devonian period."

That was a mistake.

https://www.cbc.ca/news/science/tyrannoroter-fossil-herbivore-9.7094046?cmp=rss

Let's go back to the best fossils and really look and think about what we are seeing and what it could mean with this organism.

#prototaxites #unsolved_mystery #Devonian

Francis Hueber peers up at a Prototaxite fossil. A man in a checkered shirt looks at a sheer wall of rock. In it a vertical fossil of a bulbous cylinder nearly twice his height.

A cross section of a Prototaxite, polished to show the detail of the tubes that run vertically. It looks rather like a tree in some ways. It has an outer layer rather like bark, and a lighter core.

A smaller fossil showing that prototaxites had ring like structures.

A fossil in situ is rather like a petrified tree trunk. A man with a small rock hammer looks at the huge fossil.

Scientists may have discovered a new extinct form of life https://phys.org/news/2026-01-scientists-extinct-life.html

Prototaxites fossils are structurally and chemically distinct from extinct and extant Fungi https://www.science.org/doi/10.1126/sciadv.aec6277

"#Prototaxites was the 1st giant organism on the terrestrial surface, represented by #fossils of up to 8m from the #Devonian... fossils of P. taiti were chemically distinct from contemporaneous #Fungi, structurally distinct from all known Fungi. This casts doubt upon its fungal affinity"

digital picture of a tall pillar-like prehistoric organism standing among much shorter plants

El Kolihapeltis pudo haber usado su pigidio plano para estabilizarse en el fondo marino y nadar cortas distancias.📷Peter Halasz #trilobite #devonico #devonian

Trilobite con la "cola" en forma de pala.

Quadrops flexuosa es un trilobite del Devónico medio con un rostrum en forma de tenedor, aunque algunos especímenes, que pueden ser de otra especie, lo tienen en forma de cuchara. 🏛️Museo Field de Historia Natural 📷James St. John #Devonico #Devonian #trilobite

Trilobite con tórax estrecho flanqueado por espinas curvadas hacia atrás, más grandes en el pigidio. En el cefalón tiene una estructura en forma de tenedor de 4 puntas colocada longitudinalmente.

Los trilobites del género Comura son naturalmente espinosos. Tanto, que tienen espinas sobre los ojos. 📷sulla55 #Devonico #Devonian #trilobite

Trilobite con púas curvas en el dorso y una púa larga y curva sobre cada ojo compuesto.

Synauchenia coalescens #Devonian #Germany #synauchenia #brachydeiridae #sciart #arthrodira #placodermi

Tiaraspis subtilis #sciart #tiaraspis #Groenlandaspididae #arthrodira #placodermi #germany #devonian

Bulongosteus liui #devonian #china #xinjiang #bulongosteus #selenosteidae #placodermi #arthrodira

Burrinjucosteus asymmetricus #burrinjucosteus #buchanosteidae #devonian #burrinjuk #australia

WIP Ctenurella gladbachensis #devonian #ptyctodontida #ctenurella #placodermi #germany

WIP Wurungulepis denisoni #antiarchi #givetian #australia #Wurungulepis #devonian

WIP Synauchenia coalescens #work_in_progress #placodermi #arthrodira #brachydeiridae #synauchenia #Germany #devonian

WIP Tiaraspis subtilis #Work_in_progress #tiaraspis #Groenlandaspididae #arthrodira #placodermi #germany #devonian

WIP Burrinjucosteus asymmetricus #WIP #sciart #burrinjuk #burrinjucosteus #buchanosteidae #devonian #arthrodira #placoderm #NewSouthWales

Dunkleosteus terrelli #sciart #cleveland #placodermi #arthrodira #dunkleosteus #devonian

WIP Bulongosteus liui #sciart #wip #arthrodire #placoderm #devonian #china #selenosteidae #bulongosteus

WIP Draconichthys elegans #placodermi #devonian #arthrodira #draconichthys

WIP Kimbryanodus williamburyensis #Devonian #placodermi #ptychodontida

Hay peces espada, pero no hay ninguna ley que impida la existencia de trilobites espada. El Psychopyge termierorum es un trilobite del Devónico temprano (410-393 MdA) con una glabela alargada y puntiaguda. Sus espinas genales y laterales no se quedan atrás. 🏛️Museo de Ciencia Naturald e Houston #trilobite #devonico #devonian

#Devonian

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