Pulvinifera ([unranked]) |
Ref:
E.E. Ruppert et al., 2004: 490-495, 502, fig. 9.26B.
[implicit] |
Trochozoa ([unranked]) Beklemischev, 1944 |
Ref:
G. Giribet et al., 2000: 551, fig. 4; 544, tab. 1.
|
Protostomia ([unranked]) Grobben, 1908 |
Ref:
R.C. Brusca & G.J. Brusca, 1990: 118.
[alternative position] |