Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

Cephalochordata (lancelet)

Taxonomy
Cephalochordata was named by Haeckel (1866). It is extant. It was considered monophyletic by Brusca et al. (2016).

It was synonymized subjectively with Leptocardia by Jaekel (1911); it was reranked as the unranked clade Cephalochordata by Zhang (2011) and Nielsen (2012); it was reranked as the phylum Cephalochordata by Nielsen (2012); it was reranked as the subphylum Cephalochordata by Dineley and Metcalf (1999), Brusca et al. (2016) and Nelson et al. (2016).

It was assigned to Metazoa by Zhang (2011); to Chordata by Nielsen (2012); and to Chordata by Zrzavy et al. (1998), Dineley and Metcalf (1999), Sepkoski (2002), Edgecombe et al. (2011), Nielsen (2012), Brusca et al. (2016) and Nelson et al. (2016).

Synonymy list
YearName and author
1866Cephalochordata Haeckel
1998Cephalochordata Zrzavy et al.
1999Cephalochordata Dineley and Metcalf p. 11
2002Cephalochordata Sepkoski
2011Cephalochordata Edgecombe et al. p. 153 figs. Fig. 1
2011Cephalochordata Zhang
2012Cephalochordata Nielsen p. 358
2016Cephalochordata Brusca et al.
2016Cephalochordata Nelson et al. p. 15

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
RankNameAuthor
phylumChordataHaeckel 1874
subphylumCephalochordata(Haeckel 1866)
subphylumCephalochordata(Haeckel 1866)

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Subph. Cephalochordata Haeckel 1866 [lancelet]
show all | hide all
hide
hide
G. Amphioxus Yarrell 1836
G. Branchiostoma Costa 1834
G. Dolichorhynchus Willey 1901
hide
G. Epigonichthys Peters 1877
+
Invalid names: Asymmetron Andrews 1893 [synonym], Heteropleuron Kirkaldy 1895 [synonym], Paramphioxus Haeckel 1893 [synonym]
Invalid names: Asymmetrontidae [synonym]
G. †Cathaymyrus Shu et al. 1996
Cl. Leptocardii Müller 1845
hide
hide
+
G. Amphioxides Gill 1895
Diagnosis
No diagnoses are available