ammonites
Tortworth Inlier, Gloucestershire, GL6 (Silurian of the United Kingdom)

Where: Gloucestershire, United Kingdom (52.7° N, 2.0° W: paleocoordinates 29.9° S, 13.5° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Damery Beds Formation, Telychian (436.0 - 428.2 Ma)

• greistoniensis.

• group of beds-level stratigraphic resolution

Environment/lithology: shoreface; gray, green, red sandstone and gray shale

• BA 2 - Environment taken from Cocks et al. 2003
• Fine-grained sandstone alternating with siltstones, mudstones, and shales. Sandstones are hard and in places micaceous, and they break into flaggy, blocky, and irregluar pieces. The sandstones are generally greay, greenish grey, red or purple, and the shales are mostly grey or purplish grey.

Collection methods: This reference is a taxonomic treatment of the trilobites of England and Wales. Localities at which the fossils occur are given for each species described. It is from this information that the list was put together. I therefore do not know how the taxa were collected.

Primary reference: N.J. Curtis and P.D. Lane. 1997. The Llandovery trilobites of England and Wales. Monograph of the Palaeontographical Society 151:1-101 [M. Patzkowsky/Z. Krug/Z. Krug] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 50144: authorized by Mark Patzkowsky, entered by Zack Krug on 09.05.2005