A Standard Biostratigraphic Sequence for the Devonian of Western North America

对美国西部泥盆纪的拟议研究涉及三大领域的努力。1.腕足类系统学：特别是在属、科和亚纲水平上的志-泥盆世螺旋状腕足类，它们的范围事件和生物地理意义，与《腕足类论文集》修订版的编写有关。2.中泥盆世腕足类和牙形刺生物地层学以及跨越Frasian-Fammenian界线的牙形刺生物地层学。在这些层序中，正在研究大盆地的沉积史，重点是加深(中泥盆统)和台地暴露(上泥盆统)的海平面事件。3.上泥盆统动物群的调查，重点是腕足类为主的群落和与牙形刺分带方案相结合的地带，将继续建立在已公布的已知的下泥盆统和中泥盆统层序研究的基础上。

Proposed research in the Devonian of the western United States involves three broad areas of endeavor. 1. Brachiopod systematics: especially Siluro-Devonian spiriferid brachiopods at the genus, family, and subordinal levels, their range events, and biogeographical significance, in connection with preparation of the revised edition of the Brachiopod Treatise. 2. Brachiopod and conodont biostratigraphy of the Middle Devonian and conodont biostratigraphy across the Frasnian-Famennian boundary. In these sequences Great Basin depositional history is being investigated with a focus on eustatic events of deepening (Middle Devonian) and platform exposure (Upper Devonian). 3. Investigation of the Upper Devonian faunal sequence, with emphasis on brachiopod-dominated communities and zones integrated with the conodont zonal scheme, will continue to build on published research that has made known the Lower and Middle Devonian sequence.