Talk:Lancelet

message: It seems to me that these critters have endostyles that eventually give rise to the mammalian thyroid gland. Shouldn't this be mentioned somewhere in the lead article? 
Do lancelets have eyes? If no, when did they start evolving in chordates (probably in platyhelminthes I guess)?PhoenixSeraph 22:13, 1 April 2006 (UTC)
replies: text: I just added a bit about eyes. I actually have quite a bit more material, but think maybe the Physical features section should be broken down into subsections. The frontal eye alone is worth a solid paragraph. For example, it expresses the PAX6 gene, and is thought to be homologous with vertebrate paired eyes. The pigment cup has been proposed as a homologue of the RPE (Retinal pigment epithelium). The row-1 photoreceptors carry C-opsin 1, except for a few which carry C-opsin 3. They have a Gi-mediated phototransduction cascade and are thought to be homologous with vertebrate rods and cones. The first row of interneurons are seratonogenic. In the last row, the neurons on the left-hand side feed into the left ventrolateral nerve while the axons on the right side of the eye (back row) feed into the right ventrolateral nerve. The Joseph cells and Hesse organs, meanwhile have melanopsin on microvilli. Zyxwv99 (talk) 02:14, 1 December 2015 (UTC)

message: The major "textbook view" of Chordate subphylum relationships places the lancelets as a sister-group to the vertebrates. This is the picture presented in cladograms by both Brusca & Brusca (Invertebrates, Sinauer Associates 2003) and Miller & Harley (Zoology, McGraw-Hill 2007), as well as the Three of life project. This wikipedia article, however, appears very biased in expressing the other view, which is placing Urochordates as a basal group.
Stating neutrality as a goal, wikipedia articles should try not to take stands in ongoing debates. I have seen the "newer research suggests that" argument used in advocacy of both of the vertebrate sistergroup views; it is thus not very convincing unless one also states what kind of evidence there is for either view.--Gunnar Mikalsen Kvifte (talk) 06:58, 20 December 2007 (UTC)
thread_title:  Subphylum relationships within the Chordata 

message: You can use this ( ) excellent image for your article ^___^. Also you can translate the article about amphioxus from Russian Wikipedia --LameClock (talk) 11:18, 4 June 2008 (UTC)
thread_title:  Images 

message: What symmetry are juveniles missing?  Anatomic symmetry, meaning they're not bilaterally symmetric as the adults are? Kanenas (talk) 20:43, 26 July 2008 (UTC)
thread_title: Asymmetric Nature of Juveniles

message: I did a search on Google Scholar for each of the species listed here, filtering for hits since the year 2000. The number to the left of each item indicate how many hits it got. As a measure of scientific and taxonomic validity, this is obviously WP:OR. On the other hand, it is a replicable measure of notability (WP:NOTABLE). 
17 Asymmetron inferum
78 Asymmetron lucayanum
1 Epigonichthys australis
0 Epigonichthys bassanus
0 Epigonichthys cingalensis
7 Epigonichthys cultellus
5 Epigonichthys hectori
29 Epigonichthys maldivensis
0 Branchiostoma africae
0 Branchiostoma arabiae
0 Branchiostoma bazarutense
2420 Branchiostoma belcheri
2 Branchiostoma bennetti
1 Branchiostoma bermudae
38 Branchiostoma californiense
0 Branchiostoma capense
68 Branchiostoma caribaeum
0 Branchiostoma clonaseum
20 Branchiostoma elongatum
3510 Branchiostoma floridae
0 Branchiostoma gambiense
7 Branchiostoma indicum
207 Branchiostoma japonicum
1350 Branchiostoma lanceolatum
0 Branchiostoma leonense
1 Branchiostoma longirostrum
10 Branchiostoma malayanum
0 Branchiostoma moretonense
39 Branchiostoma nigeriense
43 Branchiostoma platae
16 Branchiostoma senegalense
0 Branchiostoma tattersalli
33 Branchiostoma virginiae
Zyxwv99 (talk) 02:19, 15 December 2015 (UTC)
thread_title:  Valid species 

message: Lancelets produce GFP. I added an updated diagram based off of recent literature (2017).
</br>(Single Eukaryote | talk |  22:16, 13 January 2021 (UTC)
thread_title:  Added section on fluorescent proteins and updated the anatomical diagram