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

ADW: Planctosphaeroidea: Classification
Used by permission. Parent taxa. Phylum Hemichordata (hemichordates). Class
Planctosphaeroidea. Genus Planctosphaera ...
animaldiversity.ummz.umich.edu/site/accounts/ classification/Planctosphaeroidea.html

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

Planctosphaeroidea Hemichordata Animalia
Planctosphaeroidea: English: Science: Biology: Flora and Fauna: Animalia:
Hemichordata: Planctosphaeroidea: Animalia Hemichordata Planctosphaeroidea: ...
www.ltn.net/T/Idioma/English/Science/Biology/ Flora_and_Fauna/Animalia/Hemichordata/Planctosphaeroidea/

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

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

Class Planctosphaeroidea - Properties - The Taxonomicon
Aug 14, 2008 ... Geologic and geographic distribution, and habitat of Class Planctosphaeroidea.
sn2000.taxonomy.nl/Taxonomicon/ TaxonProperties.aspx?id=41434&syn=1

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/cgi/content/full/97/9/4469? ijkey=7ae6e41e9d9e2467b12d38300483efa0d0f47bc8

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