Although only a small fraction of the estimated 6000 extant bryozoan species has been
analysed in a molecular phylogenetic context, the resultant trees have increased our …

Brachiopods are (perhaps all too) familiar to any geology student who has taken an
invertebrate paleontology course; they may well be less familiar to biology students. Even …

Phylogenomic studies have improved understanding of deep metazoan phylogeny and
show promise for resolving incongruences among analyses based on limited numbers of …

Systematics has developed rapidly during the past two decades. A multitude of new
methods and contributions from a diversity of biological fields including molecular genetics …

Background Within the complex metazoan phylogeny, the relationships of the three
lophophorate lineages, ectoprocts, brachiopods and phoronids, are particularly elusive. To …

Phylonyms is an implementation of PhyloCode, which is a set of principles, rules, and
recommendations governing phylogenetic nomenclature. Nearly 300 clades-lineages of …

Improved knowledge of the fossil record, combined with molecular trees describing the
phylogenetic relationships between recent phyla, is gradually advancing our understanding …

Lophotrochozoa is a protostome clade that includes disparate animals such as molluscs,
annelids, bryozoans, and flatworms, giving it the distinction of including the most body plans …

Large collections of Eccentrotheca helenia sp. nov. from the lower Cambrian Wilkawillina
and Ajax limestones in the Arrowie Basin, South Australia, contain abundant low, cap …

Despite many major advances in recent years, three key challenges remain in bringing
clarity to the early history of the phylum:(1) identifying the origin, morphology and life modes …