Llanfallteg Formation

Llanfallteg Formation
Llanfallteg Formation
Stratigraphic range: Darriwilian PreꞒ Ꞓ O S D C P T J K Pg N
Type	Formation
Lithology
Primary	Siltstone, Tuff
Location
Region	England, Wales
Country	United Kingdom

The Llanfallteg Formation is a geologic formation in Wales. It preserves fossils dating back to the Ordovician period. It predominantly consists of ash containing siltstones, as wells as ash fall deposits and tuffs. It likely dates to the Darriwilian based on graptolites. The local graptolite fauna includes Didymograptus artus and Glossograptus armatus. The local trilobite fauna includes agnostids, phacopids and asaphids.^[1]

References

^ Legg, David A.; Hearing, Thomas W. (September 2015). "A late surviving xenopod (Arthropoda) from the Ordovican [sic] Period, Wales". Geological Magazine. 152 (5): 942–948. doi:10.1017/S001675681400065X. ISSN 0016-7568.

Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.

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[1] Legg, David A.; Hearing, Thomas W. (September 2015). "A late surviving xenopod (Arthropoda) from the Ordovican [sic] Period, Wales". Geological Magazine. 152 (5): 942–948. doi:10.1017/S001675681400065X. ISSN 0016-7568.

[1]

Llanfallteg Formation
Stratigraphic range: Darriwilian PreꞒ Ꞓ O S D C P T J K Pg N
Type	Formation
Lithology
Primary	Siltstone, Tuff
Location
Region	England, Wales
Country	United Kingdom

See also

References