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Illustration 3
Illustration 3

Shells 1
Shells 1

U.S.P.R.R.Exp. & Surveys, 32nd. parallel - California. Palæontology, Plate IX. Fig. 1(a) Scutella striatula. fossil (b) under Surface Fig. 2. Scutella striatula. recent Fig. 3. Echinarachnius...?
U.S.P.R.R.Exp. & Surveys, 32nd. parallel - California. Palæontology, Plate IX. Fig. 1(a) Scutella striatula. fossil (b) under Surface Fig. 2. Scutella striatula. recent Fig. 3. Echinarachnius...?

Hispaniae Antiquae Tabula Auctore N. Sanson
Hispaniae Antiquae Tabula Auctore N. Sanson

Northamptonshire 3
Northamptonshire 3

Illustration 1
Illustration 1

Illustration 2
Illustration 2

Shells 2
Shells 2

Recent Shells. Plate XI
Recent Shells. Plate XI

U.S.P.R.R.Exp. & Surveys, 32nd. parallel - California. Palæontology, Plate I. Fig. 1. Pecten meekii. Fig. 2. Pecten magnolia. Fig. 3. Spondylus estrellanus.
U.S.P.R.R.Exp. & Surveys, 32nd. parallel - California. Palæontology, Plate I. Fig. 1. Pecten meekii. Fig. 2. Pecten magnolia. Fig. 3. Spondylus estrellanus.