- Sachitida,
although as
originally envisaged, this
group includes the
wiwaxiids and is thus
equivalent to the Halwaxiida.
Armor plates called "sclerites"...
-
River Formation (Northwest Territories, Canada),
including remains of
wiwaxiids, annelids, brachiopods, chaetognaths, scalidophorans,
arthropods and pterobranchs...
- have
wiped out most of the SSF, with the
exception of the halkieriids,
wiwaxiids and Pojetaia.
Small s****y
fossils are typically,
although not always...
-
Formation Greenland An
organism of
uncertain affinities, with
similarities to
wiwaxiid and
annelid sclerites,
thelodont scales and the
foraminiferan Lagena. The...
-
Lingulate brachiopod Nisusia N. sp?
Rhynchonellate brachiopod Wiwaxia W. sp
Wiwaxiid mollusc Tanchaiella T. sp
Hexactinellid sponge Ivantsovia I.
andreyi Protomonaxonid...
- instances, to the
proportions on
complete fossils.
Younger spines of
possible wiwaxiid origin have been
observed from the
Valongo Formation (Middle Ordovician:...
-
specimens of
Halkieria in 1990,
Conway Morris wrote of "the halkieriid-
wiwaxiid body plan" and that the
halkieriids might be
close relatives of molluscs...
