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Late Quaternary deposits on the Yorkshire coast southwards from Sewerby Cliff in Bridlington Bay to Dimlington north of Spurn Point (Figs. 1a-1c, p82) have been the subject of stratigraphic and palaeontological research for well over a century (Bateman et al., 2011; Catt, 2007 and references therein, Evans et al., 1995). The region contains the type-site for the Last Glacial Maximum (LGM) in Britain at Dimlington (Rose, 1985) and extensive outcrops of at least three glacial diamicts, locally the Basement, Skipsea and Withernsea Tills, indicating the dynamic nature of the North Sea ice lobe during the final stages of the British and Irish Icesheet (BIIS). Work by Bateman et al. (2015) indicates that the Skipsea and Withernsea Tills represent icesheets that were present across Holderness for less than 6 ka between 20.9 and 15.1 ka BP before retreating north and east. However, the deglaciation remains insufficiently constrained, with a hiatus between the preserved glacial deposits and the earliest Lateglacial sequences at Gransmoor and Roos Bog (Walker et al., 1993; Beckett, 1981). Organic sediments directly overlying glacial till have been examined at Barmston which provide additional evidence of Lateglacial environments and climate in Holderness. This paper presents fossil insect and chronological evidence from coastal exposures from which climatic reconstructions can be made.