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Swiss Journal of Palaeontology
Fig. 5 | Swiss Journal of Palaeontology

Fig. 5

From: A new method to determine volume of bromalites: morphometrics of Lower Permian (Archer City Formation) heteropolar bromalites

Fig. 5

Sample distribution of the spiral heteropolar bromalites from Archer City Bonebed III and V, n = 300. The a observed volume and the b calculated volume show a similar distribution pattern both indicating a decrease in specimens with large volumes. c Length shows a bell curve distribution giving to the possibility that a single species is present in the sample set. d Eccentricity, there is a bell cure distribution on the degree of flatness preserved in these specimens. There is a trend towards the more crushed state

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