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New Finds of Skeletal Fossils in the Terminal Neoproterozoic of the Siberian Platform and Spain
A current paradigm accepts the presence of weakly biomineralized animals only, barely above a low metazoan grade of organization in the terminal Neoproterozoic (Ediacaran), and a later, earlyExpand
Distribution of the archaeocyath-calcimicrobial bioconstructions on the Early Cambrian shelves
Abstract The differences and variety of structural, depositional, and compositional features observed in the Early Cambrian microbial-archaeocyath buildups preserved in the present-day continents,Expand
Functional biology and ecology of Archaeocyatha
A modular organization confers many ecological advantages in reef-building settings, such as indeterminate growth leading to larger size, greater powers of regeneraion, and an ability to encrust andExpand
Class Archaeocyatha Bornemann, 1884
Archaeocyatha (Porifera) were an important group of marine sessile organisms during the Cambrian, being almost entirely Early Cambrian but with some relics persisting into the Middle and LateExpand
Evaporitic constraints on the southward drifting of the western Gondwana margin during Early Cambrian times
Abstract Lower Cambrian evaporites and carbonates are reported from nearly all the platforms of the western Gondwana margin, which comprises the Souss, Ossa–Morena, Cantabro-Iberian, Armorican andExpand
Early Cambrian bioconstructions in the Zavkhan Basin of western Mongolia
The Neoproterozoic–Cambrian succession in the Zavkhan Basin of western Mongolia preserves early Cambrian bioconstructions of Nemakit-Daldynian to Botomian age. As elsewhere (Siberia, Morocco), theExpand
Lower Cambrian archaeocyathan bioconstructions
Abstract Archaeocyatha are now confidently considered as a Class within the phylum Porifera. Regulares and Irregulares are no longer a systematic division, but have only ecological significance.Expand
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