11 Result(s)

Article

A 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...

Zhifei Zhang, Lars E. Holmer, Christian B. Skovsted, Glenn A. Brock… in Scientific Reports (2013)

Article

A stem group echinoderm from the basal Cambrian of China and the origins of Ambulacraria

Deuterostomes are a morphologically disparate clade, encompassing the chordates (including vertebrates), the hemichordates (the vermiform enteropneusts and the colonial tube-dwelling pterobranchs) and the echi...

Timothy P. Topper, Junfeng Guo, Sébastien Clausen… in Nature Communications (2019)

Article

Isotopic evidence for temperate oceans during the Cambrian Explosion

The Cambrian Explosion was a key event in the evolution of life on Earth. This event took place at a time when sea surface temperatures have been proposed to reach about 60 °C. Such high temperatures are clear...

Thomas Wotte, Christian B. Skovsted, Martin J. Whitehouse… in Scientific Reports (2019)

Article

Reply to ‘Re-evaluating the phylogenetic position of the enigmatic early Cambrian deuterostome Yanjiahella’

Timothy P. Topper, Junfeng Guo, Sébastien Clausen… in Nature Communications (2020)

Article

An encrusting kleptoparasite-host interaction from the early Cambrian

Parasite–host systems are pervasive in nature but are extremely difficult to convincingly identify in the fossil record. Here we report quantitative evidence of parasitism in the form of a unique, enduring lif...

Zhifei Zhang, Luke C. Strotz, Timothy P. Topper, Feiyang Chen… in Nature Communications (2020)

Article

Morphology and ecology of the bradoriid arthropods Spinospitella and Nikolarites from the Cambrian (Series 2, Stage 4) of North Greenland (Laurentia)

Tuberculate fragments referred to Nikolarites spasskyi are compared with a complete carapace and other material of Spinospitella from Cambrian Series 2, Stage 4 in North Greenland. The descriptions expand earlier...

John S. Peel, Christian B. Skovsted, Elise Wallet in PalZ (2021)

Article

Fossil evidence unveils an early Cambrian origin for Bryozoa

Bryozoans (also known as ectoprocts or moss animals) are aquatic, dominantly sessile, filter-feeding lophophorates that construct an organic or calcareous modular colonial (clonal) exoskeleton^1–3. The presence of...

Zhiliang Zhang, Zhifei Zhang, Junye Ma, Paul D. Taylor, Luke C. Strotz… in Nature (2021)

Article

Hyolithid-like hyoliths without helens from the early Cambrian of South China, and their implications for the evolution of hyoliths

A small hyolith, with a triangular operculum and a conical-pyramidal conch with a sharp apex, originally documented as Ambrolinevitus ventricosus, is revised based on new material from the Chengjiang biota. The o...

Fan Liu, Christian B. Skovsted, Timothy P. Topper… in BMC Ecology and Evolution (2022)