By Naef A.
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Extra info for Die fossilen Tintenfische. Eine paläozoologische Monographie. Fossil dibranchiate cephalopods. Band 5
Example text
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6f . a. Lateral view. The ventral wall (6) of the phragmocone. the outlinc of the mantle (11), and the parts of the shell above the brcak (,r) have been reconstructed. the phragmocone insidc the rostrllm has been inferred accordingto b and from observationsincorporatedin Fig. 2 t . 6 2 . b. ln the posteriorpart. the greaterportion of thc vcntral wall of the phragmoconc is missing; the septa are broken off. Their sutures(4) arc still recognizable,however. c. to illustrate the integrationof the shell in the mantlesac.
1 6 9 ) . (Could the shapeof the terminal tip, which has been reconstructedby the authorsof both species, We are looking at a type that differs markedly from be even more similar? Whatever the answer. there Spirulirostra: althoughthe dorsalview showsa general seemsto be no reasonto assumea marked difference). hoernesi(cf. Fig. 23), the rostrum Unfortunately the description is rather cursory (p. Rostrum obtusely conical below, appearscompressedand split. Lower Oligocene of cluadrangularlyflattened above".
