Branchiostoma floridae

(Branchiostoma floridae)

Description

Branchiostoma floridae (the Florida lancelet) is a lancelet of the genus Branchiostoma. The genome of this species has been sequenced, revealing that among the chordates, the morphologically simpler tunicates are actually more closely related to vertebrates than lancelets. An embryo of a Florida amphioxus (Branchiostoma floridae) has a larval pharynx with gill slits that is asymmetrical. The gill slits in the larval pharynx form in the center of the embryo when it is in its earliest stage of development (primordial) meaning the thick layer of endoderm is overlapped by a thin layer; which aids into making the B. floridae asymmetrical from left to right.

Taxonomic tree:

Domain:
Kingdom: Animalia
Phylum:
Class: Leptocardii
Order:Branchiostomatidae
Family:Branchiostomatidae
Genus:Branchiostoma
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