. Bulletin of the British Museum (Natural History), Geology. . B C Fig. 7. Diagrammatic representation of process form in the Areoligera senonensis complex. A. Areoligera senonensis Lejeune-Carpentier 1938 and A. cf. senonensis. B. Areoligera, coronata (O. Wetzel) Lejeune-Carpentier 1938 and A. cf. coronata. C. Areoligera medu- settiformis (O. Wetzel) Lejeune-Carpentier 1938 and A. cf. medusettiformis. Specimens assignable to A. senonensis, A. coronata and A. medusettiformis are here recorded in association with morphologically similar forms in which process com- plexes are developed on the ve
. Bulletin of the British Museum (Natural History), Geology. . B C Fig. 7. Diagrammatic representation of process form in the Areoligera senonensis complex. A. Areoligera senonensis Lejeune-Carpentier 1938 and A. cf. senonensis. B. Areoligera, coronata (O. Wetzel) Lejeune-Carpentier 1938 and A. cf. coronata. C. Areoligera medu- settiformis (O. Wetzel) Lejeune-Carpentier 1938 and A. cf. medusettiformis. Specimens assignable to A. senonensis, A. coronata and A. medusettiformis are here recorded in association with morphologically similar forms in which process com- plexes are developed on the ventral and dorsal surfaces. The latter forms were also recorded from the Lower Eocene of southern England by Williams & Downie 1966c as A. cf. senonensis, A. cf. coronata and A. cf. medusettiformis, with a reflected tabulation of 4', 6", 5'", ip, 1"". These six closely related taxa are here considered to represent the morphological extremes of what is informally termed the Areoligera senonensis complex. Three basic process types are present in the forms assigned to this complex (Fig. 7). The majority of the specimens examined exhibit more than one process type, although, apart from transitional forms, one type is dominant. The six taxa have been distinguished on the basis of the following features :. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). London : BM(NH)
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