As the number of environmental small subunit (SSU) ribosomal RNA gene sequences has greatly surpassed the number of cultured microorganisms, reconciliation of the established taxonomy and ...

The genus Calycellina is re-described and discussed; a key to the species is presented. A new combination, Calycellina punctata, with Peziza puberula as a synonym, resolves the taxonomic and ...

The science of taxonomy -- Principles of zoological classification -- The species category -- The polytypic species, population systematics and infraspecific categories -- Theories of biological ...

Last month, many microbiologists were surprised to find that the familiar names and nomenclature for the bacteria and archaea they study had been rewritten, seemingly overnight. On December 10, the ...

Conodonts are no longer regarded as teeth but rather as internal supporting elements of a nectonic animal, which may represent a separate class of the Chordata. There is a particular need for further ...

Brittle stars (Class Ophiuroidea) represent a remarkably diverse group of echinoderms with an extensive fossil record that has long provided insight into marine evolution and biogeography. Recent ...