After Smith & Zamora, 2009
<==o Cincta Jaekel, 1918 [Homostelea] |?- †Sucocystis? maroccana (Termier & Termier, 1973) |?- †Davidocinctus pembrokensis Friedrich, 1993 |?- †Ludwigicinctus truncatus Friedrich, 1993 |?- †Nelegerocystis ivantzovi Rozhnov, 2006c |?- †Rozanovicystis triangularis Rozhnov, 2006c |--o †Asturicystis Sdzuy, 1993 | |-- †A. jaekeli Sdzuy, 1993 | `-- †A. havliceki Fatka & Kordule, 2001c `--+--o †Trochocystitidae Jaekel, 1918 | |-- †Trochocystites bohemicus Barrande, 1859 | `--o †Trochocystoides Jaekel, 1918c | |-- †T. parvus Jaekel, 1918c | `-- †T. planus Sdzuy, 1993 `--+-- †Sotocinctius ubaghsi Sdzuy, 1993 `--+--o †Gyrocystidae Jaekel, 1918 | |-- †Progyrocystis disjunct Friedrich, 1993 | `--o †Gyrocystis Jaekel, 1918 | |-- †G. platessa Jaekel, 1918 | `--+-- †G. testudiformis Friedrich, 1993 | `--+-- †G. cruzae Gil Cid & Domínguez, 1995 | `--+-- †G. erecta Friedrich, 1993 | `-- †G. badulesiensis Friedrich, 1993 `--o †Sucocystidae Friedrich, 1993 |-- †Protocinctus manisllaensis Raman & Zamora, 2009 `--+-- †Ludwigicinctus Friedrich, 1993 `--+--o †Undatacinctus Smith & Zamora, 2009 | |-- †U. quadricornuta (Friedrich, 1993) [Sucocystis quadricornuta Friedrich, 1993] | `--+-- †U. melendezi (Schröder, 1973) [Sucocystis melendezi (Schröder, 1973)] | `-- †U. undata (Friedrich, 1993) [Sucocystis undata Friedrich, 1993] `==o †Sucocystis Cabibel, Termier & Termier, 1959 |-- †Sucocystis acrofera Friedrich, 1993 `--+--+-- †Sucocystis theronensis Cabibel, Termier & Termier, 1959 | `-- †Sucocystis bretoni Friedrich, 1993 `--+-- †Lignanicystis barriosensis Zamora & Smith, 2008 `--o †Ellipticocinctus Termier & Termier, 1973 |-- †E. barrandei (Munier-Chalmas & Bergeron, 1889) `-- †E. vizcainoi Friedrich, 1995
Reference(s):
- Smith, A. B. & Zamora, S., 2009: Rooting phylogenies of problematic fossil taxa; a case study using cinctans (stem-group echinoderms).
–Palaeontology: Vol. 52, #4, pp. 803-821 [doi: 10.1111/j.1475-4983.2009.00880.x]