View source for Subfamily Helgolandinioideae

<CENTER>Subfamily Helgolandinioideae</CENTER><BR><TABLE WIDTH="100%"><TD><B>Citation:</B> Helgolandinioideae  [[Fensome et al., 1993b]].<BR>
<B>Diagnosis:</B>Goniodomaceans with either or both of the following characters: 1) the <I>[[tabulation]]</I> has more than the typical goniodominean number of <I>[[Plate|plates]]</I> in at least two <I>[[plate series]]</I>; 2) within the <I>[[Life-cycle |life-cycle ]]</I>  there is a nonpreservable smooth <I>[[cellulosic]]</I> <I>[[cyst]]</I> with a <I>[[chasmic archeopyle]]</I>.<BR>
<B>Type genus:</B><UL><BR>
<I>Helgolandinium</I> [[von Stosch, 1969]].<BR>
</UL><B>Extant genera:</B><UL><BR>
<I>Alexandrium</I> [[Halim, 1960a]].<BR>
<UL>(=<I>Gessnerium</I> [[Halim, 1967]] ex [[Halim, 1969]]; taxonomic junior synonym according to [[Balech, 1990b]])</UL><BR>
<UL>(=<I>Protogonyaulax</I> [[Taylor, 1979]]; taxonomic junior synonym according to [[Balech, 1985b]])</UL><BR>
<I>Fragilidium</I> [[Balech, 1959]] ex [[Loeblich III, 1965]].<BR>
<I>Helgolandinium</I> [[von Stosch, 1969]].<BR>
<I>[[Pyrophacus]]</I> [[Stein, 1883]].<BR>
</UL><B>Fossil genus:</B><UL><BR>
<I>[[Tuberculodinium]]</I> [[Wall, 1967]]; Pleistocene.<BR>
</UL></TD></TABLE><BR>

[[Category:Suprageneric]]
[[Category:Tree]]
[[Category:Subfamily|Helgolandinioideae]]
<B>Parent:</B> [[Parent Family::Family Goniodomaceae part 1]]