Fig. 8.  Non-conglomeratic Langport Member. ( a ) Hummocky and swaley cross-stratification, Langport Member, Pinhay Bay, (near Lyme Regis), Devon. Length of pen is 14 cm. ( b ) Diplocraterion from the Sun Bed, Pinhay Bay, (near Lyme Regis), Devon. Width of pencil sharpener is 2.5 cm.

Fig. 9.  Langport Member, slope-related facies, Pinhay Bay, (near Lyme Regis), Devon. ( a ) Slump bed. The soft-sediment fold is overturned and has a fold axis with a north–south orientation. One-metre stick for scale. ( b ) Detail of matrix-supported small-pebble conglomerate showing weakly

Fig. 12.  Schematic illustration of proposed relationship between sedimentary facies and sea-level change across the Triassic–Jurassic boundary, SW Britain. The illustration depicts the time of drowning of the Langport Member carbonate ramp.

Member; L. Mb. – Langport Member.

Figure 6. Lithostratigraphic log, vol. MS measurements and ammonite biostratigraphy at Southam Quarry, near Southam and Long Itchington, Warwickshire. For key to lithologies see Figure 3 . L. M. – Langport Member. Bed numbers from Clements et al . ( 1975 ).

by micrites of the Langport Member and overlain by fissile ‘paper shales’ at the base of the Lias Group.

stratigraphy must lie somewhere within the marly upper beds of the Langport Member.

Fig. 10.  Line drawing based on photomontage (taken on 28 October 2003) of upper c . 1 m of Langport member, Pinhay Bay, Devon (section 2 of Wignall 2001 ). All pebbles visible in the montage (compare Fig. 9h ) have been included in the line drawing. Bed 2 is separated from bed 4 by a thin

) grey marl; (5) sandstone; (6) limestone; (7) rip-up clasts; (8) shell bed; (9) beef calcite; (10) bioturbation; (11) desiccation cracks; (12) soft-sediment deformation. LM, Langport Member.

Figure 6. Changes in the size–frequency distributions of the body sizes of infaunal, semi-infaunal, and epifaunal bivalves through the Triassic–Jurassic of the United Kingdom. A, Westbury Formation (WF); B, Cotham Member (CM; Lilstock Formation); C, Langport Member (LM; Lilstock Formation); D

Fig. 4. δ 18 O and δ 13 C variations of foliated layers in growth direction for three well-preserved Liostrea shells. Two cut sections have been analysed from sample LAV 110 (lower Langport Member), and one of these has been sampled for different depths below the surface (section 1: open

Audrie's Bay is based on Hallam (1995 , fig. 2). Somerset graphic log and biostratigraphy from Hesselbo et al . (2002) (see Fig. 4 ); south Wales and Mendips logs are based on new data, except for the lowest 1 m of the Mendips section,which is from Duffin (1980) . Langport Member at Lyme Regis

size increases. Significant differences were assumed if 95% confidence intervals did not overlap. WF, Westbury Formation; CM, Cotham Member; LM, Langport Member; PPZ, pre-Planorbis Zone, PZ, Planorbis Zone, LZ, Liasicus Zone, AZ, Angulata Zone. C, Body-size distribution of all bivalves recorded across

37 relates to figure 3.41 of Weedon ( 1987a ). ○ – sample measured for %CaCO 3 plotted with reference to lower horizontal axis; B – level with abundant calcite beef; Lport Mbr – Langport Member; Angul. – Angulata; Buc. – Bucklandi; Extra. – Extranodosa; Ext. – Extranodosa. Bed numbers from Lang

].) Lil—Lilstock Formation; C—Cotham Member; L—Langport Member; A—Angulata zone; PPZ—Pre-Planorbis zone; TJB—Triassic-Jurassic boundary; CIE—initial carbon isotope excursion; LTE—Late Triassic extinction.

) ( Hesselbo et al., 2002 ) and terrestrial (Austria) ( Bonis et al., 2010 ) sections. Lil—Lilstock Formation; C—Cotham Member; L—Langport Member; A—Angulata zone; PPZ—Pre-Planorbis zone; TJB—Triassic-Jurassic boundary; CIE—initial carbon isotope excursion; LTE—Late Triassic extinction.

. Audrie’s Bay. CM, Cotham Member; LM, Langport Member.