''Siphonodella'' is an extinct genus of conodonts. ''Siphonodella banraiensis'' is from the Late Devonian of Thailand. ''Siphonodella nandongensis'' is from the Early Carboniferous of the Baping Formation in China.New material of the Early Carboniferous conodonts from the lower member of the Baping Formation in Nandong, Guangxi, China. Zhihong Li, Zhongqin Peng, Long Cheng, Chuanshang Wang and Baozhong Wang, Acta Micropalaeontologica Sinica, 2014, volume 31, issue 3, pages 271–284

Use in stratigraphy

The

Tournaisian The Tournaisian is in the ICS geologic timescale the lowest stage or oldest age of the Mississippian, the oldest subsystem of the Carboniferous. The Tournaisian age lasted from Ma to Ma. It is preceded by the Famennian (the uppermost stag ...

, the oldest age of the

Mississippian Mississippian may refer to: * Mississippian (geology), a subperiod of the Carboniferous period in the geologic timescale, roughly 360 to 325 million years ago *Mississippian culture, a culture of Native American mound-builders from 900 to 1500 AD ...

(also known as Lower Carboniferous) contains eight conodont biozones, two of which are characterized by ''Siphonodella'' species: * the zone of '' Gnathodus typicus'' and ''Siphonodella isosticha'' * the zone of ''Siphonodella quadruplicata'' and '' Patrognathus andersoni'' (upper zone of ''Patrognathus andersoni'') The GSSP Golden Spike for the

is in La Serre, Montagne Noire, France with the first appearance of ''Siphonodella sulcata''. In 2006 it was discovered that this GSSP has biostratigraphic problems.

References

External links

* * Conodont genera Carboniferous conodonts Devonian conodonts Tournaisian life Late Devonian first appearances Late Devonian animals Mississippian extinctions {{conodont-stub