Earth Science Conservation Review

Summary Full report
Lisdoo Townland pitTyrone
Lisdoo Pit, north-east of Irvinestown, Co.Tyrone, where green mudstones (with miospores) of the Shanmullagh Formation were exposed.
Site Type: Pit
Site Status: ASSI
Council area: Omagh District Council
Grid Reference: H28586137
Google maps: 54.49978,-7.56009
Rocks
Rock Age: Devonian (Famennian, Frasnian)
Rock Name: Fintona Group, Shanmullagh Formation (Form Blm)
Rock Type: Mudstone, Sand, Sandstone, Siltstone
Interest
Fossil Groups: Miospore, Miospores
Other interest: lacustrine

Summary of site:

This site is important because it yielded 29 species of Devonian plant spores, allowing the age of these rocks to be firmly established.

A temporary excavation into a little under 2m of green, laminated mudstones and thin coarse grained sandstones near the base yielded fairly well preserved spores (of the 8 mudstones present, 5 were sampled).

Sites rich in spore floras are rare and this prolific site should be designated and protected.

 Enlander, I., Dempster, M. & Doughty, P., 2024. Lisdoo Townland pit, County Tyrone, site summary. [In] Earth Science Conservation Review.
https://www.habitas.org.uk/escr/summary.php?item=318. Accessed on 2024-12-26

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