Gas Works Lane Section (Haverfordwest)

This SSSI is of national (UK) and possibly international importance because it is a key locality for study of rocks of Llandovery age (a subdivision of the Silurian Period named after that area of Carmarthenshire) and has yielded one of the best assemblage of fossils that have so far been found in rocks formed at this time (about 440 million years ago).

Gas Works lane section SSSI aerial photo

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Managing this site

Mae’r safle yn eiddo i Network Rail a Cyngor Sir Benfro. Cafodd nodweddion arbennig y SoDdGA hwn a barn y Cyngor Cefn Gwlad ynglÿn â rheoli’r safle eu crynhoi mewn Datganiad Rheoli Safle, wedi’i gyfeirio at berchnogion a rheolwyr y tir. Gellir gweld y datganiad yn yr adran adnoddau isod.

Access information

There is no public access to this site.

Resources

Corporate

Gas Works Lane Section - Haverfordwest Citation Download SSSI_0370_Citation_EN001.pdf (16 KB)
This site shows a sequence of rocks falling within the Llandovery Series (Silurian). The section includes a one hundred and forty metre section through the Haverford Mudstone formation and the overlying Gasworks Sandstone and, for these rock units, this is the best available exposure. The marine fauna of the Haverford Formation is well known as one of the richest in the lower Llandovery, including numerous brachiopods, trilobites, corals, bryozoa, crinoids, tentaculitids and nautiloids. This is a key site for studies of lower Silurian stratigraphy and biotas.

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Gas Works Lane Section - Haverfordwest Map Download SSSI_0370_Map001.pdf (363 KB)

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Gas Works Lane Section - Haverfordwest Operations likely to damage the special interest Download SSSI_0370_PDO_EN001.pdf (17 KB)
The operations listed below may damage the features of interest of Gas Works Lane Section - Haverfordwest. Before any of these operations are undertaken you must consult CCW, and may require our consent. The list of operations is not a prohibited list.

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Gas Works Lane Section - Haverfordwest Site Management Statement Download SSSI_0370_SMS_EN001.pdf (409 KB)
This management statement contains CCW’s opinion of the way in which the SSSI should be managed in order to maintain its special interest. It also provides a basis for future discussions and decisions on the conservation management of the SSSI.

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