Tubular Shell Infestations in Some Mississippian Spirilophous Brachiopods
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چکیده
منابع مشابه
Mississippian Discinid Brachiopods Attached to a Soft-bodied Organism
A concretion from the lower Mississippian Meadville Shale Member of the Cuyahoga Formation near Lodi, Ohio, preserves a population of Orbiculoidea newberryi Hall in life position, associated with what is interpreted to be an unidentified soft-bodied organism. The brachipods show a diffuse unimodal orientation, parallel to the axis of the "host" organism, in what was probably an upward direction...
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M. J. S. Rudwick and others postulate ‘rhythmic-flow’ feeding for the Permian richthofeniacean bi-achiopods, whereas R. E. Grant claims that they fed by normal ciliary action. Suspension-feeding has two components, current generation and food capture; normal brachiopod lophophores d o both, but this is neither universal nor compulsory among animals. Opening and closing the richthofeniid shell g...
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■ Abstract During the Mississippian period (A.D. 1000–1500) the southeastern United States witnessed a broadscale fluorescence of polities characterized by impressive earthwork construction, rich mortuary offerings, and intensified agriculture. Research on the nature of complexity in these so-called chiefdoms has been an enduring issue in North American archaeology, even as this research has un...
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Scabies is an intensely pruritic disorder induced by an immune allergic response to infestation of the skin by the mite Sarcoptes scabiei. The biology of the mite, the clinical aspects and diagnosis of scabies infestations as well as the treatment of choice with 5% permethrin dermal cream and the use of scabicides based on other chemical substances are reviewed.
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ژورنال
عنوان ژورنال: Acta Palaeontologica Polonica
سال: 2010
ISSN: 0567-7920
DOI: 10.4202/app.2010.0032