Swiss Journal of Palaeontology

Table 1 Repeated measurements of the index of sutural complexity (ISC) of the single suture line of forma media

From: Covariance of sutural complexity with whorl shape: evidence from intraspecific analyses of the Cretaceous ammonoid Desmoceras

Specimen no.	Shell diameter (mm)	1st time	2nd time	3rd time	4th time	5th time	Mean	SD	SE	95 % CI
DLM021	15	7.89	7.95	7.78	8.10	7.99	7.94	0.12	0.05	7.94 ± 0.10
DLM091	30	12.34	12.16	12.15	12.26	12.27	12.24	0.08	0.04	12.24 ± 0.07

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