Hemichordata: Definition from Answers.com
The single species known from the class Planctosphaeroidea is found in both ....
A third class, Planctosphaeroidea, is proposed based on a single species ...
www.answers.com/topic/hemichordata

Planctosphaeroidea (marine invertebrate) -- Britannica Online ...
Britannica online encyclopedia article on Planctosphaeroidea (marine
invertebrate), The Hemichordata consist of three classes: Enteropneusta,
Pterobranchia, ...
www.britannica.com/EBchecked/ topic/462947/Planctosphaeroidea

ITIS Standard Report Page: Planctosphaeroidea
Planctosphaeroidea Taxonomic Serial No.: 158649. Download Planctosphaeroidea TSN
... Class, Planctosphaeroidea. Direct Children: Genus, Planctosphaera ...
www.itis.gov/servlet/SingleRpt/SingleRpt? search_topic=TSN&search_value=158649

Two new records of Planctosphaera larvae (Hemichordata ...
Two new records of Planctosphaera larvae (Hemichordata: Planctosphaeroidea)*. ~:
~. S. SCHELTEMA. Woods Hole Oceanographic Institution; Woods Hole, ...
www.springerlink.com/index/U45T22N93703W416.pdf

Planctosphaeroidea - Nomen.at - animals and plants
2 definitions found for Planctosphaeroidea. Planctosphaeroidea belongs to:
Hemichordata. Planctosphaeroidea consists of: ...
nomen.at/Planctosphaeroidea

Planctosphaeroidea - Wikispecies
5 Nov 2006 ... Classis: Planctosphaeroidea Ordo: not divided ... Retrieved from "http://species
.wikimedia.org/wiki/Planctosphaeroidea" ...
species.wikimedia.org/wiki/Planctosphaeroidea

Recent molecular phylogenies suggest that deuterostomes
Planctosphaeroidea (planktonic) (17, 18). Hemichordates re- ... The monotypic
Planctosphaeroidea (25) are transparent spher- ...
www.pnas.org/content/97/9/4469.full.pdf

hemichordate (marine invertebrate) -- Britannica Online Encyclopedia
The Hemichordata consist of three classes: Enteropneusta, Pterobranchia, and
Planctosphaeroidea. Enteropneusts, or acorn worms (about 70 species), ...
www.britannica.com/EBchecked/topic/260786/hemichordate

Class Planctosphaeroidea - Hierarchy - The Taxonomicon
Taxonomic hierarchy of Class Planctosphaeroidea. Display of synonyms,
alternative taxonomic positions, references, number of subtaxa, ...
taxonomicon.taxonomy.nl/TaxonTree.aspx?id=41434

Evolution of the chordate body plan: New insights from ...
The monotypic Planctosphaeroidea (25) are transparent spherical larvae for which
adults have not been described (17, 21). Planctosphaera pelagica is a large ...
www.pnas.org/content/97/9/4469.full?ck=nck