Charactera | Heterogastrostyla salina nov. gen., nov. spec. | Neogastrostyla aqua | Gastrostyla spp. | Hemigastrostyla paraenigmatica | Hemigastrostyla enigmatica | Apogastrostyla rigescens | Protogastrostyla pulchra |
---|---|---|---|---|---|---|---|
Parental AZM | Completely retained | Completely retained | Completely retained | Only apical part retained | Only apical part retained | Only apical part retained | Only apical part retained |
FVTA | Primary primordia | Primary primordia? | Secondary primordia | Primary primordia | Primary primordia | Primary primordia | Primary primordia |
Anlage V contribute PTVC | Yes | No | Yes | Yes | Yes | Yes | Yes |
RMA | Intrakinetally | Intrakinetally | Intrakinetally | De novo | De novo | De novo | De novo |
LMA | Intrakinetally | Intrakinetally | Intrakinetally | Intrakinetally | De novo | Intrakinetally | Intrakinetally in proter and/or de novo in opisthe (?) |
RMA anterior part differentiated into paired basal bodies, which then become dorsomarginal row | Yes | No | No | Yes | No | No | Yes |
Formation of extra cirri | No | No | No | Yes | Yes | Yes | No |
DKA | Likely primary primordia | Secondary primordia | Secondary primordia | Likely primary primordia | Secondary primordia | Likely primary primordia | Primary primordia |
Dorsal pattern | Urosomoida-like pattern | Urosomoida-like pattern | Oxytricha-like pattern | Hemigastrostyla-like pattern | Hemigastrostyla-like pattern | Gonostomum-like pattern | Gonostomum-like pattern |
Parental DK | Completely resorbed | Completely resorbed | Completely resorbed | Completely resorbed | Completely resorbed | Completely resorbed | Retained |
Data source | present work | Kaur et al. (2019) [20] | Foissner (1982) [33] | Song and Wilbert (1997) [19] | Shao et al. (2013) [38] | Li et al. (2010) [17] | Hu and Song (2000) [39] |