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WoRMS taxon details

Checked: verified by a taxonomic editorProtobranchia 
AphiaID: 106

Classification: Biota > Checked: verified by a taxonomic editorAnimalia (Kingdom) > Checked: verified by a taxonomic editorMollusca (Phylum) > Checked: verified by a taxonomic editorBivalvia (Class)
Authority Pelseneer, 1889
Status accepted
Rank Subclass
Parent Checked: verified by a taxonomic editorBivalvia
Source Not documented
Vernacular
Names
 
Language   Name 
Dutch Unreviewed: has not been verified by a taxonomic editorveerkieuwige tweekleppigen  [details]
Direct child
taxa (3)

[sort alpha..]
 Order Checked: verified by a taxonomic editorNuculanoida
Order Checked: verified by a taxonomic editorNuculida
Order Checked: verified by a taxonomic editorSolemyoida
Environment marine
Link Unreviewed: has not been verified by a taxonomic editorTo ITIS
Notes 
From editor or global species database
Checked: verified by a taxonomic editorClassification The traditional subclass Protobranchia holds together with characters (the protobranch gills, the taxodont hinge in Nuculoidea and Nuculanoidea) which are plesiomorphic in Bivalves. There is debatable evidence that Nuculanoidea form a clade with lamellibranch bivalves rather than with the other protobranchs (Giribet & Wheeler, 2002). Pending further studies the three groups could be maintained as unassigned superfamilies of the Bivalvia but it is just as useful to keep Protobranchia with rank of subclass as long as it is not demonstrated to be polyphyletic (note that Tree of Life still uses Protobranchia with equal rank to Pteriomorpha, Paleoheterodonta, Heterodonta...). Internal relationships are not straightforward, there are not so many taxa so just go directly to superfamily rank.
Xenoturbella to be ousted from here, with a note about Israelsson’s hypothesis (1999: Proceedings of the Royal Society 266B, 835-841.  [details]

Checked: verified by a taxonomic editorSpelling Although the original spelling was Protobranchiata, the spelling Protobranchia in prevailing usage is followed here. [details]
LSID urn:lsid:marinespecies.org:taxname:106
Taxonomic
Edit history
 
Date   action   by
2004-12-21 15:54:05Z  created  db_admin
2009-02-03 09:16:23Z  checked  Gofas, Serge
2010-07-08 21:55:35Z  changed  Gofas, Serge
  
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  Citation: Gofas, S. (2014). Protobranchia. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=106 on 2014-09-19
  Creative Commons License The webpage text is licensed under a Creative Commons Attribution 3.0 License