-
Article
Expression of cellular apoptosis susceptibility (CAS) in the human testis and testicular germ cell tumors
Testicular germ cell tumors are the most frequent malignancies found in men between 15 and 44 years old. Although cellular apoptosis susceptibility (CAS) was demonstrated to be upregulated in breast cancer and...
-
Article
New observations on Vetulicola longbaoshanensis from the Lower Cambrian Guanshan Biota (Series 2, Stage 4), South China
Cambrian vetulicolians are enigmatic metazoans which play an important role in understanding the early animal evolution. Vetulicola longbaoshanensis Yang et al., 2010 is a unique species reported from the Guansha...
-
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...
-
Article
Sophisticated digestive systems in early arthropods
Understanding the way in which animals diversified and radiated during their early evolutionary history remains one of the most captivating of scientific challenges. Integral to this is the ‘Cambrian explosion...
-
Article
Open AccessA sclerite-bearing stem group entoproct from the early Cambrian and its implications
The Lophotrochozoa includes disparate tentacle-bearing sessile protostome animals, which apparently appeared in the Cambrian explosion, but lack an uncontested fossil record. Here we describe abundant well pre...
-
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...
-
Article
Liu et al. reply
Replying to R. C. P. Mounce & M. Wills Nature 476, 10.1038/nature10266 (2011); D. A. Legg et al. Nature 476 10.1038/nature10267 (2011)
-
Article
An armoured Cambrian lobopodian from China with arthropod-like appendages
Jointed limbs in arthropods are a key innovation that facilitated the evolution of the world's most species-rich animal group. Their ancestors may lie among a group of extinct animals called lobopodians, which...
-
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. ...
-
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...
-
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...
-
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...
-
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...
