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    • P549444
    • A trilobite, watercolour sketch...
    • P549467
    • An Ostracod. Pen and ink sketch on paper.
    • P549468
    • An Ostracod. Pen and ink sketch on paper.
    • P549469
    • An Ostracod. Pen and ink sketch on paper.
    • P549470
    • An Ostracod. Pen and ink sketch on paper.
    • P549471
    • An Ostracod. Pen and ink sketch on paper.
    • P549472
    • An Ostracod. Pen and ink sketch on paper.
    • P549473
    • An Ostracod. Pen and ink sketch on paper.
    • P549474
    • An Ostracod. Pen and ink sketch on film.
    • P549475
    • An Ostracod. Pen and ink sketch on paper.
    • P549476
    • An Ostracod. Pen and ink sketch on paper.
    • P549477
    • An Ostracod. Pen and ink sketch on paper.
    • P549478
    • An Ostracod. Pen and ink sketch on paper.
    • P549479
    • An Ostracod. Pen and ink sketch on paper.
    • P549480
    • An Ostracod. Pen and ink sketch on paper.
    • P549481
    • An Ostracod. Pen and ink sketch on paper.
    • P549489
    • Jurassic fish.
    • P549490
    • Palaeogene fish.
    • P549491
    • Aspidorhynchus, a Cretaceous fish.
    • P549492
    • Sclerorhynchus, a fossil fish from the...
    • P549493
    • Devonian fish.
    • P549494
    • Silurian fish.
    • P549527
    • A Silurian seascape, diorama,...
    • P551745
    • Gouache painting showing creation and...
    • P551755
    • Gouache painting of mineralizing fluids.