Liwia, a Lower Cambrian nektaspid belonging to the family Liwiidae, was found in the Zawiszyn Formation, known only from borehole samples, which revealed these inaccessible beauties hidden kilometers underground.
#Artiopoda #Nektaspida #Paleoart #Cambrian

Mazon Monday #251: Tardisia broedeae #fossils #paleontology #MazonCreek #MazonMonday #arthropod #pennsylvanian #artiopoda

www.esconi.org/esconi_earth...

Almost done my notes on Simonetta then I’ll move on to Whittington. Currently interesting bit is the decision he made with the epipodite. Simonetta didn’t believe Marrella had any.
#Arthropoda #paleontology #fossils #artiopoda #marrella #marrellasplendens #albertosimonetta #paleontology

Simonetta provided the best older Marrella analysis. Look at the detail. This is in his 1962 analysis of the Walcott batch. He’s not happy that Walcott exaggerated 🤣 he’s not Achilles Guenee level rude yet
#Arthropoda #paleontology #fossils #artiopoda #marrella #marrellasplendens #albertosimonetta