Kimberella was notably not a member of this group when it existed about 555 million years ago, which means that this lineage and its relative split about 558 million years ago.
Kimberella was notably not a member of this group when it existed about 555 million years ago, which means that this lineage and its relative split about 558 million years ago. The early cell divisions of animals under this classification have indeterminate cleavage. All animals which fall under this classification have pharyngeal gill slits, a hollow nerve cord, and a segmented body. The phyla Chordata and Echinodermata are under this classification. Name this classification of animals in which the blastopore develops the anus before the mouth, a classification commonly contrasted with protostomes.
Kimberella was notably not a member of this group when it existed about 555 million years ago, which means that this lineage and its relative split about 558 million years ago.
{deuterostome}s [accept {deuterostomata}]