Download this stock image: . Bulletin of the British Museum (Natural History), Geology. 162 SMITH, PAUL, GALE & DONOVAN Description. SHAPE AND SIZE. The specimens available for study range 36-60 mm in length (mean = 47mm; SD = 8-3; N = 9), though fragmentary smaller specimens are known. The test height is 56-67% of test length (mean = 60%; SD = 40; N = 9), and the test width 88-105% of test length (mean = 96%; SD = 3 1; N = 9). In outline the test is cordate. The widest part of the test is approximately mid-length, level with genital plates 1 and 4. The test in profile is characteristically subquadrate. The oral sur - RGHNXK from Alamy's library of millions of high resolution stock photos, illustrations and vectors.

The Rise of Natural History Museums – DIG

Llanvirn hi-res stock photography and images - Alamy

Earth Science Faculty, Earth Science

v.1 (1949-1952) - Bulletin of the British Museum (Natural History) Geology - Biodiversity Heritage Library

Stratigraphy and Biochronostratigraphy of the Lower Pliensbachian (Jurassic) from the Asturian basin (Northern Spain)

Geological museums

Natural history museum india hi-res stock photography and images - Page 10 - Alamy

Llanvirn hi-res stock photography and images - Alamy

Trilobite point hi-res stock photography and images - Alamy