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Foraminifers and conodonts in the Danlu section, South China: implications for the Viséan–Serpukhovian boundary (Mississippian).
- Source :
-
Geological Magazine . Jun2023, Vol. 160 Issue 6, p1131-1143. 13p. - Publication Year :
- 2023
-
Abstract
- The Viséan–Serpukhovian boundary is poorly defined in South China, hampering regional and global stratigraphical correlations. The foraminiferal and conodont distribution of the Baping Formation in the carbonate-slope Danlu section permits the recognition of an interval from the middle Viséan to the uppermost Serpukhovian in a continuous succession. The base of the Serpukhovian in Danlu is recognized by the first occurrences of Janischewskina delicata , Howchinia subplana and questionable ' Millerella ' tortula. At a slightly younger level, the conodont Lochriea ziegleri is first recorded. A calibration on the first occurrence of L. ziegleri in different basins at a global scale has been revised compared to auxiliary markers within the ammonoids and foraminifers. The late occurrence of L. ziegleri in the Danlu section also supports a lack of synchronicity in the global first occurrence of this taxon. This study calls for the recognition of a new base for the Serpukhovian under a far better correlation between different zonal schemes and fossil groups. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CONODONTS
*AMMONOIDEA
*COINCIDENCE
*FORAMINIFERA
*FOSSILS
*INHERITANCE & succession
Subjects
Details
- Language :
- English
- ISSN :
- 00167568
- Volume :
- 160
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Geological Magazine
- Publication Type :
- Academic Journal
- Accession number :
- 164817128
- Full Text :
- https://doi.org/10.1017/S0016756823000262