Talk:Siboglinidae

Latest comment: 15 years ago by Jerzy in topic Order

Annelids?

edit

Annelid worms? I thought that since 1960s no one seriously thought that these animals were annelids? Their embryology and body plan shows relation to Hemichordata and Enteropneusta, not Annelida!
—Preceding unsigned comment added by 89.139.66.39 (talk) 12:58, 24 February 2007

I've added cites for their position within the annelids. I don't know whether a lot of work has been done in explaining the embryology and body plan in light of those results, but doing some more searching on Google Scholar would probably find what has been published to date. Kingdon 14:33, 19 June 2007 (UTC)Reply
The current edition of Ruppert, Fox, and Barnes (2007) has them listed as as annelids in the order Pogonophora for a couple of reasons. First they have a segmented opisthosoma with chaeta. Second, they have trochophore larva. Third, they have a juvenile with a complete gut (Ruppert et al., 2007). Ruppert et al. also says that molecular data supports their inclusion in the polychaeta, however doesn't cite the source. Looking into some journals for the molecular info might be helpful Findfunds 06:47, 5 November 2007 (UTC)Reply

(Vandalism)

edit

Does this have anything remotely to do with reality?

This discovery was made by none other than Prof. Nicholas Freemanaina, one of the world's leading coffee experts, in his search for the mythical super-species of aquatic coffee bean. The sub-species has subsequently been named Vermaterfreemanaina nicolasii.

—Preceding unsigned comment added by an unspecified IP address (talk) 23:23, 23 November 2009 64.132.32.226

Most recently, a new sub-species of Vestimentiferan was discovered deep in the Marianas Trench of the Challenger Deep. This discovery was made by none other than Prof. Nicholas Freemanaina, one of the world's leading coffee experts, in his search for the mythical super-species of aquatic coffee bean. The sub-species has subsequently been named Vermaterfreemanaina nicolasii.
Thanks for flagging it, 64!
--Jerzyt 07:18, 2 December 2009 (UTC)Reply

Order

edit

In the accompanying article (except in the last case),

  1. The lead secn has
    (a) "Giant tube worms" in former phylum Pogonophora, and
    (b) family Siboglinidae comprising former phyla Pogonophora and Vestimentifera;
  2. Taxo-box says has Siboglinidae in (current) order Canalipalpata;
  3. Section Vestimentiferans has Riftia pachyptila (Rdr to Giant tube worm) as "a vestimentiferan";
  4. but (in the above talk section #Annelids?) User:Findfunds has Ruppert, Fox, and Barnes putting "them" [Siboglinidae, surely] among "annelids in the order Pogonophora".

The attempt to harmonize these seems to run up against two issues:

  1. #1 (b) invites the expectation that Pogonophora and Vestimentifera have each been demoted and subordinated to family Siboglinidae, and thus each a sub-family or a super-genus of it, while #4 seems to have Siboglinidae subordinated to an order Pogonophora instead of to order Canalipalpata.
  2. #1 (b)'s bald description of "former phyla" Pogonophora and Vestimentifera insinuates demotion without change of membership and without subordination of one to the other, but #1 (a) has Riftia pachyptila/Giant tube worm formerly in phylum Pogonophora while #3 has it currently in Vestimentifera.

I consider that to be the math; i hope someone else can do the taxonomy, with refs. (I also think that both old and new taxonomy need to be clearly discussed, to serve users trying understand our articles in terms of old works that have valid observations even if they describe them in obsolete terminology.
--Jerzyt 07:18, 2 December 2009 (UTC)Reply