LDGSL/56/1/4 | Drawing of a skeleton of a Teleosaurus from the Lias of Whitby, North Yorkshire | [1828-1836] | |
LDGSL/82/3 | Letter from Nathaniel John WINCH to Thomas WEBSTER | 17 Sep 1820 | |
LDGSL/100 | Drawing of an incomplete plesiosaur skeleton from near Whitby, North Yorkshire | [1831] | 
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LDGSL/149 | Drawing of Lepidotus semiserratus | [?1830s-1840s] | |
LDGSL/613/2/73/2 | Watercolour of Lepidotus semiserratus Agassiz | 1835 | 
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LDGSL/613/2/74/1 | Watercolour of Lepidotus semiserratus Agassiz | 1835 | 
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LDGSL/613/2/75/1 | Watercolour of Lepidotus semiserratus Agassiz | [1834-1843] | 
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LDGSL/613/2/75/2 | Watercolour of Lepidotus semiserratus Agassiz | [1834-1843] | 
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LDGSL/613/2/75/3 | Watercolour of Lepidotus semiserratus Agassiz | [1834-1843] | 
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LDGSL/613/3/12/1 | Watercolour of Pachycormus curtus Agassiz | [1834-?1835] | 
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