Also known as Greensell

Where: England, United Kingdom (52.8° N, 2.7° W: paleocoordinates 15.6° N, 10.5° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Tarporley Siltstone Formation (Mercia Mudstone Group), Anisian (247.2 - 242.0 Ma)

• "The Tarporley Siltstone Formation, typically ranging from 20 to 250 m in thickness (Warrington et al. 1980, table 4), is only about 6-10 m thick at Grinshill" (Benton & Spencer 1995). Some Rhynchosaurus remains may also come from the underlying Helsby Sandstone Formation.

•Tarporley Siltstone formerly known as "Waterstones"; Helsby Sandstone formerly known as "Ruyton & Grinshill Sandstones" or the "Building Stones"

•Palynological data indicates an Anisian age (Benton et al. 1994)

• group of beds-level stratigraphic resolution

Environment/lithology: paralic; fine-grained, micaceous, gray sandstone and coarse-grained, gray, red sandstone

Size class: macrofossils

Preservation: cast, trace

Collected by O. Ward in 1838; reposited in the BMNH

Collection methods: quarrying, surface (in situ), mechanical,

• SHRBM: Shrewsbury Borough Museum

•SCRCM: Shropshire County Museum, Ludlow

•MANCH: Manchester Museum

•BATGM: Bath Geology Museum

•WARMS: Warwickshire Museum, Warwick

•BGS: British Geological Survey Museum, Keyworth

Primary reference: O. Ward. 1840. On the foot-prints and ripple-marks of the New Red Sandstone of Grinshill Hill, Shropshire. Report of the British Association for the Advancement of Science 8:75-76 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 80838: authorized by Johannes Mueller, entered by Jana Dummasch on 14.05.2008, edited by Torsten Liebrecht, Richard Butler and Bethany Allen

Creative Commons license: CC BY (attribution)