CORALS OF THE UPPER SILURIAN SPIRIFER TINGI BEDS OF KWEICHOW.

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The species of corals here described comprise the following.1. Favosites forbesi E. & H. vat kweitungensis Grabau2. Omphyma glomerata Grabau.3. Omphyma cystiphylloides Grabau.4. Cystiphyllum omphymiforme Grabau.5. Cystiphyllnm sp.6. Amplexus of lojopingensis Grabau.With these corals occur numerous well-preserved specimens of Spirifer tingi Gr. and several other brachiopods of undescribed species. Also a species of Holopea, probably H. yilungensis Gr.Though not large, this fauna is distinctive and consists of typical Silurian forms.The Spirifer tingi beds were first recognized as a part of the Miaokao group in the Chütshing region of East Yunnan, where these beds overlie the Lower Silurian Mientien group disconformably, and have an exposed thickness of 165 metres. The fauna in the typical section at Yilung comprises the following species~1.ANTHOZOA.Cladopora kütsingensis GrabauBRACHIOPODACamarotoechia of tongkinensis Mans.Spirifer (Eospirifer) tingi Grabau.PELECYPODAPterinea mientienensis GrabauActinopteria mansuyi GrabauModiolopsis miaokaoensis GrabauModiolopsis sp.Leda yilungensis GrabauPraecardium distans GrabauGASTROPODAHormotoma kütsingensis GrabauH. kütsingensis var. major GrabauHolopea yilungensis Grabau OSTRACODALeperditia tingi GrabauLeperditia sp.Entomis? corduroides GrabauIn the East Yunnan region, the Spirifer tingi beds are overlain by the Spirifer bourgeoisi beds, and these by higher beds with Ceratiocaris, while still higher beds with fish remains succeed these. None of these higher beds however, have so far been found in Kweichow. The stratigraphy is given in the following note by V. K. Ting. The species of corals here describe the following.1. Favosites forbesi E. & H. vat kweitungensis Grabau2. Omphyma glomerata Grabau.3. Omphyma cystiphylloides Grabau.4. Cystiphyllum omphymiforme Grabau.5. Cystiphyllnm sp.6. Amplexus of lojopingensis Grabau .With these corals producing numerous well-preserved specimens of Spirifer tingi Gr. And several other brachiopods of undescribed species. Also a species of Holopea, probably H. yilungensis Gr.Though not large, this fauna is distinctive and consists of typical Silurian forms. The Spirifer tingi beds were first recognized as a part of the Miaokao group in the Chütshing region of East Yunnan, where these beds overlie the Lower Silurian Mientien group disconformably, and have an exposed thickness of 165 meters. The fauna in the typical section at Yilung comprises the following species ~ 1. ANTHOZOA.Cladopora kütsingensis GrabauBRACHIOPODACamarotoechia of tongkinensis Mans.Spirifer (Eospirifer) tingi Grabau.PELECYPODAPterinea mientiene nsis GrabauActinopteria mansuyi GrabauModiolopsis miaokaoensis GrabauModiolopsis sp.Leda yilungensis GrabauPraecardium distans GrabauGASTROPODAHormotoma kütsingensis GrabauH. kütsingensis var. major GrabauHolopea yilungensis Grabau OSTRACODALeperditia tingi GrabauLeperditia sp.Entomis? corduroides GrabauIn the East Yunnan region, the Spirifer tingi beds are overlain by the Spirifer bourgeoisi beds, and these by higher beds with Ceratiocaris, while still higher beds with fish remains succeed these. None of these higher beds however, have so far been found in Kweichow. The stratigraphy is given in the following note by VK Ting.
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