The supercontinent Rodinia is hypothesized to have been assembled and positioned in tropical latitudes by the early Neoproterozoic Era. Paleomagnetic data from limestones of Svalbard and basaltic dikes of South China have been interpreted to record rapid changes in paleogeography driven by true polar wander that may have rotated the supercontinent in association with the 800 Ma Bitter Springs c...

Abstract Garnet is a fundamental expression of metamorphism and one the most important minerals used to constrain thermal conditions crust. We innovative in situ laser-ablation ICP-MS/MS Lu-Hf geochronology demonstrate that garnet metapelitic rocks enclosing Cambrian eclogite southern Australia formed during Laurentian Mesoproterozoic metamorphism. porphyroblasts amphibolite-facies yielded ages...

Predation is arguably one of the main driving forces of early metazoan evolution, yet the fossil record of predation during the Ediacaran-Early Cambrian transition is relatively poor. Here, we present direct evidence of failed durophagous (shell-breaking) predation and subsequent shell repair in the Early Cambrian (Botoman) epibenthic mollusc Marocella from the Mernmerna Formation and Oraparinn...

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 microanatomical evidence confirming the occurrence of highly developed vision in the early Cambrian, over 2,000 ommatidia in each eye. Moreover, a quantitative analysis of the distributio...

Impressive gains have been made in our understanding of metazoan complexity at the molecular level, especially those in the field of developmental evolution, but our understanding at other levels has lagged behind. This symposium attempts to bring diverse perspectives to bear on the causes and mechanisms of the explosive growth in metazoan complexity in the late Precambrian and Lower Cambrian. ...

Brerr. Carlton E.. LiddeU. W. David & Dersder. Krlie L. 198310 15. h t e Cmbnan hard substrate LETHAIA cammunitin imm ~onunwWyornmg. (he oldcsr *now hardpound encrusten irmaia, ib~. LC. pp. a 31-3 0 5 1 0 . ISSE WS-1163. W a r d p n d surfaces from rhe Late Cambnan S n o w Range Formatron In Moulonran~IVyomtng are the oldest known non-reefal hard substrat& exhtb~tlng encrusrlng losals. These su...