Phylogenetic relationships among Rhizophydium isolates from North America and Australia.

The order Chytridiales is the largest and most diverse of five orders in phylum Chytridiomycota. Rhizophydium is one of two genera in the Chytridiales with more than 220 described species. Because thallus characters used in classical descriptions of Rhizophydium species often intergrade into other species, as well as other genera, species distinctions frequently are unclear.

Molecular phylogeny of a circum-global, diverse gastropod superfamily (Cerithioidea: Mollusca: Caenogastropoda): pushing the deepest phylogenetic limits of mitochondrial LSU rDNA sequences.

The Cerithioidea is a very diverse group of gastropods with ca. 14 extant families and more than 200 genera occupying, and often dominating, marine, estuarine, and freshwater habitats. While the composition of Cerithioidea is now better understood due to recent anatomical and ultrastructural studies, the phylogenetic relationships among families remain chaotic.