Fossil-calibrated molecular phylogeny of atlantid heteropods (Gastropoda, Pterotracheoidea)

Table 3 Settings for the molecular clock calibration using a Yule model

Calibrated node	Calibration type	Age	Oldest age (Ma)	Youngest age (Ma)	M	S	Offset	Prior dist.	Reference
Superfamily Pterotracheoidea	Fossil: Coelodiscus minutus	Pliensbachian	190.8	170.3	3.00	0.80	182.7	Log-normal	[8]
Family Atlantidae	Fossil: Bellerophina minuta	Albian	113	100.5	4.00	1.00	100.5	Log-normal	[14]
Genus Atlanta	Fossil: Atlanta sp.	Chattian	28.1	23.03	2.40	0.55	23.03	Log-normal	[16]
Clade Oxygyrus+ Protatlanta	Fossil: Atlantidea rotundata	Langhian	15.97	13.82	0.90	0.65	13.82	Log-normal	[17]
Genus Protatlanta	Fossil: Protatlanta kbiraensis	Langhian	15.97	13.82	0.90	0.65	13.82	Log-normal	[16]
Clade Atlanta peronii	Fossil: Atlanta peronii	Piacenzian	3.6	2.58	0.51	0.50	2.58	Log-normal	[11]

ISSN: 2730-7182