Fossil Bonanzaさんのイラストまとめ

Stumbled upon this wild fossil. Mimetaster hexagonalis was a marrellomorph arthropod, a distant relative of trilobites. This particular specimen was preserved in pyrite in the German Hunsrück Slate.
#Paleontology

Vertebrates are comparatively rare in Mazon creek with makes this temnospondyl such a treat. Soft tissue has been preserved including its delicate toe pads.
https://t.co/F8NBOQ6nIr
#FossilFriday #MazonCreek

Bandringa was an ancient shark-relative found in the Mazon Creek concretions. The dominance of youngsters and egg cases suggest the area served as a nursery. What's more, arthropod remains are found in their stomachs.
https://t.co/OSHj0OEoF4
#ChondrichthyesWeek #FossilFriday

One of the reasons why Lagerstätten are so important to paleontology is the preservation of not just individuals but whole ecosystems. We can see this neatly in the Burgess Shale. Above we see the animals preserved due to exceptional conditions vs. normal fossilization below.

A beautiful fossilized foot of Kaririavis mater; a bird that was found in the Cretaceous Crato Formation in Brazil.
Image by Divulgação
https://t.co/VEzhtwZrTO
#200Cretaceous #Paleontology #fossils

A great past vs modern interpretation of Ichthyosaurus by @nixillustration
A recent paper came out on soft tissue reconstruction on ichthyosaurs that everyone should check out.
https://t.co/V0NV45weNb
#Fossils #Paleontology

#LagerstatteoftheWeek The sea spider, Palaeoisopus, found in the Devonian Hunsrück Slate
#Fossils

#LagerstatteoftheWeek The oldest marine turtle comes from the Early Cretaceous, Columbian Paja Formation. Desmatochelys padillai lived alongside other marine reptiles and grew to a hefty 2 meters across.
#Paleontology #Fossils

#LagerstatteoftheWeek Eoconstrictor was an ancient boid snake that lived in the Eocene Messel Pit. Based on skull structure, it was one of the earliest known snakes with infrared vision.
https://t.co/bs5zpHKmud
#Fossils #FossilFriday #Paleontology

The Oldest sea scorpion is Pentecopterus from the Ordovician Winneshiek Shale in Iowa. Despite this acclaimed status, they were relatively derived meaning it's possible we can find earlier eurypterids in the Cambrian.
https://t.co/bM9WneURAm
#Fossils #paleontology