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Showing results for tags 'peltura'.
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Wins from an auction hosted by my friend @Kasia These bits are in a medium grey limestone found at Raback, near Kinnekulle, Vastegotland, Sweden, so are probably from the Upper Cambrian part of the Alum Shale Formation. Maybe Peltura scaraboides? Or is there not enough left to get close to an id? Max 5 mm wide and 4 mm long. All specimens are on the same rock. The scale's in mm and is partially obscuring a bit seen better below : Not really expecting too much from these tiny fragments, but any help or blind guesswork very much appreciated. @piranha @Johannes @Dromiopsis But anyone else more than welcome to comment too Thank you.
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A rangeomorph holdfast trace fossil from the Ediacara formation, Rawnsley quartzite of the Flinders Range, South Australia. This specimen is Medusina mawsoni, so called because it was until recently thought to be a jellyfish, but is now believed to be the attachment point of a fractal rangeomorph as Charniodiscus is the point of anchorage for Charnia sp. This one may have been the holdfast point for some species of Rangea. The diameter of the outer circle is 1.5 cm and the fossil is estimated to be 555 million years old.
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