| 词条 | Siphonodella |
| 释义 |
| fossil range = {{fossil range|Late Devonian|Tournaisian}} | regnum = Animalia | phylum = Chordata | classis = †Conodonta | ordo = | familia = | genus = †Siphonodella | genus_authority = Branson and Mehl 1944[1] | subdivision_ranks = Species | subdivision =
| synonyms = }} Siphonodella is an extinct genus of conodonts. Siphonodella banraiensis is from the Late Devonian of Thailand.[4] Siphonodella nandongensis is from the Early Carboniferous of the Baping Formation in China.[5]Use in stratigraphyThe Tournaisian, the oldest age of the Mississippian (also known as Lower Carboniferous) contains eight conodont biozones, two of which are characterized by Siphonodella species:
The GSSP Golden Spike for the Tournaisian 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. References1. ^Conodonts. EB Branson and MG Mehl, in HW Shimer and RR Shrock, Index Fossils of North America. 1944 2. ^{{Cite journal|author=Andrey V. Zhuravlev |year=2017 |title=A new species of the conodont genus Siphonodella Branson & Mehl (late Tournaisian) |journal=Estonian Journal of Earth Sciences |volume=66 |issue=4 |pages=188–192 |doi=10.3176/earth.2017.15 }} 3. ^{{Cite journal|author1=Sandra I. Kaiser |author2=Tomáš Kumpan |author3=Vojtěch Cígler |year=2017 |title=New unornamented siphonodellids (Conodonta) of the lower Tournaisian from the Rhenish Massif and Moravian Karst (Germany and Czech Republic) |journal=Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen |volume=286 |issue=1 |pages=1–33 |doi=10.1127/njgpa/2017/0684 |url=https://www.researchgate.net/publication/320149584_New_unornamented_siphonodellids_Conodonta_of_the_lower_Tournaisian_from_the_Rhenish_Massif_and_Moravian_Karst_Germany_and_Czech_Republic }} 4. ^Late Devonian conodonts from northwestern Thailand. Norman M. Savage (2013). Bourland Printing / Trinity Press. pages 1–48, {{ISBN|978-0-578-11919-9}} 5. ^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 External links
7 : Conodont genera|Carboniferous conodonts|Devonian conodonts|Tournaisian life|Late Devonian first appearances|Late Devonian animals|Mississippian extinctions |
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