لافكيات: الفرق بين النسختين

|التعليق = ''[[Lampetra fluviatilis]]''

| fossil_range = {{fossil range|530|0|ref=<ref name=Xian-guang2002>{{Cite journal | last = Xian-guang | first = H. | coauthors =Richard J. Aldridge2, David J. Siveter2,Derek J. Siveter3,4 and Feng Xiang-hong | year = 2002 | title = New evidence on the anatomy and phylogeny of the earliest vertebrates | journal = Proceedings of the Royal Society B: Biological Sciences | volume = 269 | issue = 1503 | pages = 1865–1869 | doi = 10.1098/rspb.2002.2104 | url = http://journals.royalsociety.org/index/JA88X875KH2VC0E8.pdf|format=PDF | pmid = 12350247 | pmc = 1691108 | postscript = <!--None-->}}</ref>}}

| الشعبة = [[Chordate|Chordata]]

| الشعيبة = [[Vertebrata]]