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Stratiform shells of living discinids are composed of membranous laminae and variously aggregated, protein–coated granules of apatitic francolite supported by proteinaceous and chitinous nets in… (More)
The laminar dorsal valve of living Neocrania consists of: a primary layer of rhombohedral tablets, composed of granular calcite and commonly forming slats orthogonal to the margin, associated with… (More)
Living lingulid brachiopods are ubiquitous in low-latitude, marine infaunas. Lingula occurs throughout the Pacific and Indian oceans with the only Atlantic species, L. parva, confined to West Africa.… (More)
MPTP causes acute irreversible Parkinsonism in man that mimics the idiopathic condition exactly. It is therefore a better model of the naturally occurring disease than previously described cases… (More)
The secondary shell of the living inarticulated brachiopod Neocrania consists of calcitic laminae interleaved with organic sheets, predominantly a 44 kDa protein with high levels of aspartic… (More)
Ultrastructural studies of the epithelium associated with the delthyrium and its covers of living rhynchonellide and terebratulide brachiopods show that it is sharply differentiated into two types.… (More)