Swiss Journal of Palaeontology

Table 6 Septal slope factor (short: slope) and intercept of the examined time bins

From: Is the relative thickness of ammonoid septa influenced by ocean acidification, phylogenetic relationships and palaeogeographic position?

Age	N species	Slope	Intercept
Late Triassic	7	0.0081	− 0.0488
Early Jurassic	8	0.0038	0.0042
Middle Jurassic	4	0.0020	0.023
Late Jurassic	1	0.0037	− 0.0191
Early Cretaceous	5	0.0075	− 0.0321

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