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Article
Open AccessExceptional appendage and soft-tissue preservation in a Middle Triassic horseshoe crab from SW China
Horseshoe crabs are classic “living fossils”, supposedly slowly evolving, conservative taxa, with a long fossil record back to the Ordovician. The evolution of their exoskeleton is well documented by fossils, ...
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Article
Nothosaur foraging tracks from the Middle Triassic of southwestern China
The seas of the Mesozoic (266–66 Myr ago) were remarkable for predatory marine reptiles, but their modes of locomotion have been debated. One problem has been the absence of tracks, although there is no reason...
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Article
Open AccessNew anomalocardid frontal appendages from the Guanshan biota, eastern Yunnan
Anomalocaridids were large predators of the Cambrian seas at the top of the trophic pyramid. Complete anomalocaridid specimens have been rarely discovered and the rigid isolated frontal appendages and mouthpar...
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Article
Open AccessComplexity and diversity of eyes in Early Cambrian ecosystems
Here we report exceptionally preserved non-biomineralized compound eyes of a non-trilobite arthropod Cindarella eucalla from the lower Cambrian Chengjiang Lagerstätte, China. The specimen represents the oldest mi...
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Article
Eocrinoid echinoderms from the Lower Cambrian Guanshan Fauna in Wuding, Yunnan, China
This is a brief report of a new occurrence of eocrinoids from the Early Cambrian Wulongqing Formation in Yunnan, China. The eocrinoids from the Guanshan fauna are among the earliest known eocrinoids. Different...
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Article
New observations of the lobopod-like worm Facivermis from the early cambrian Chengjiang Lagerstätte
Facivermis yunnanicus (Hou & Chen, 1989), from the Early Cambrian Chengjiang Lagerstätte, a worm-like fossil with 5 pairs of tentacles and a perceived shrunken end, has been regarded as related to polychaetes, l...
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Article
Response to “Discussion on the systematic position of the early cambrian priapulomorph worms”