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Article
Open AccessLower Cambrian polychaete from China sheds light on early annelid evolution
We herein report a fossilized polychaete annelid, Guanshanchaeta felicia gen. et sp. nov., from the Lower Cambrian Guanshan Biota (Cambrian Series 2, stage 4). The new taxon has a generalized polychaete morpholog...
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Article
Open AccessEvidence for gill slits and a pharynx in Cambrian vetulicolians: implications for the early evolution of deuterostomes
Vetulicolians are a group of Cambrian metazoans whose distinctive bodyplan continues to present a major phylogenetic challenge. Thus, we see vetulicolians assigned to groups as disparate as deuterostomes and e...
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Article
Comparative study of Cambrian lobopods Miraluolishania and Luolishania
The rare fossil Miraluolishania described by Liu et al. from the Lower Cambrian Chengjiang Lagerstätte in 2004 is regarded as an arthropod sphinx because it bears mosaic features of both lobopods and arthropods. ...
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Article
Preliminary notes on soft-bodied fossil concentrations from the Early Cambrian Chengjiang deposits
The efforts of labor-intensive collecting in the Early Cambrian Chengjiang deposits in eastern Yunnan Province, China led to the discovery of many horizons containing exceptionally well preserved soft-bodied f...
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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
The earliest-known ancestors of Recent Priapulomorpha from the Early Cambrian Chengjiang Lagerstätte
The taxonomy of an early ancestor of Recent Priapulidae,**aoheiqingella peculiaris (=Yunnanpriapulus halteroformis Huang et al., 2004) from the Early Cambrian Chengjiang fossil Lagerstätte, is revised. Morphologi...
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Article
A rare lobopod with well-preserved eyes from Chengjiang Lagerstätte and its implications for origin of arthropods
The origin of arthropods has long been one of the most hotly-debated subjects. Arthropods used to be thought closely related with annelids, but the two groups are now believed to be separated into two major re...