primitive hemopoiesis
A first transient wave of blood cell production that, in vertebrates, gives rise to erythrocytes (red blood cells) and myeloid cells. [ http://www.ncbi.nlm.nih.gov/pubmed/15378083 GOC:bf GOC:dph http://www.ncbi.nlm.nih.gov/pubmed/15617691 ]
Synonyms: primitive haemopoiesis, primitive haematopoiesis