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Book Chapter

Mosaics and microfossils

By
Alison Tasker
Alison Tasker
1
41 Main Street, Great Glen, Leicester LE8 9GH, UK
2
Department of Geology, University of Leicester, University Road, Leicester LE1 7RH, UK
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Ian P. Wilkinson
Ian P. Wilkinson
2
Department of Geology, University of Leicester, University Road, Leicester LE1 7RH, UK
3
British Geological Survey, Keyworth, Nottingham NG12 5GG, UK
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Mark Williams
Mark Williams
2
Department of Geology, University of Leicester, University Road, Leicester LE1 7RH, UK
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Published:
January 01, 2017

Abstract

Thin-section analysis of chalk tesserae obtained from two Roman mosaics in Caerleon (South Wales) identifies foraminifera of a Late Cretaceous (Campanian) biostratigraphic age. The mosaics from which the tesserae originated were laid either in or close to the legionary fortress built at Caerleon by the Romans in AD 74–75. The Backhall Street mosaic formed part of the Baths complex of the fortress and is dated to the AD 80s; the August Villa Garden tesserae were found close to Barrack Buildings IX and X of the fortress and may have been laid about AD 200. Chalk Group outcrops are not found close to Caerleon, so the chalk used in both instances must have been transported to the site. The foraminiferal analyses suggest a possible source in the Dorset area. A transport route from Dorset to the legionary fortress at Caerleon via ports at either Crandon Bridge or Sea Mills on the Severn estuary is suggested.

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The Micropalaeontological Society, Special Publications

The Archaeological and Forensic Applications of Microfossils: A Deeper Understanding of Human History

M. Williams
M. Williams
University of Leicester, UK
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T. Hill
T. Hill
The Natural History Museum, UK
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I. Boomer
I. Boomer
University of Birmingham, UK
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I. P. Wilkinson
I. P. Wilkinson
British Geological Survey, UK
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Geological Society of London
Volume
7
ISBN electronic:
9781786203069
Publication date:
January 01, 2017

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