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Fig. 6 | Swiss Journal of Palaeontology

Fig. 6

From: Ammonoid soft tissue remains revealed by computed tomography

Fig. 6

Proleymeriella schrammeni, NE-Germany, early Albian, RUB-Pal 11286, a overview of the siphuncle segment with the surface of the siphuncular tube wall and parts of the septum attached, b apertural end of the siphuncle with one main opening (?vein) and a smaller opening (?artery) which may correspond with the smaller opening in c, the other two openings are unclear and could represent two arteries or diagenetic artifacts, c adapertural end with one larger (?vein) and one smaller openings (?artery), v vein, a artery, ts tubular structure, stw siphuncular tube wall

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