@article{fdi:010067970,
  title = {{G}yrothyris williamsi sp nov and winter-relationships of some taxa from waters around {N}ew {Z}ealand and the southern oceans ({R}hynchonelliformea : {T}erebratelloidea)},
  author = {{B}itner, {M}. {A}. and {C}ohen, {B}. {L}. and {L}ong, {S}. {L}. and {R}icher de {F}orges, {B}ertrand and {S}aito, {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}his paper describes a terebratelloid articulate brachiopod, {G}yrothyris williamsi sp. nov., based on 95 specimens from seamounts on the {L}ord {H}owe {R}ise, {C}oral {S}ea, {SW} {P}acific {O}cean. {T}he new species is attributed to {G}yrothyris on the basis of (a) morphological and growth trajectory similarities; (b) phylogenetic analyses of an alignment of {DNA} sequence (similar to 2900-sites) obtained from nuclear-encoded small- and large-subunit ribosomal {RNA} genes ({SSU} and {LSO}; and (c) the presence of a distinctive, two-part deletion in the {LSU} gene. {I}t is distinguished morphologically from {G}yrothyris mawsoni and its subspecies by both internal and external morphology and by its isolated geographical distribution, which extends the patchy, known range of this genus to an area some 2000 km north of its previous northern limit around {N}ew {Z}ealand. {P}hylogenetic analyses of the r{DNA}s and of mitochondrial cox1 gene sequences (663 sites) confirm previous indications that the {N}ew {Z}ealand endemic terebratelloid genera form a clade ({N}eothyris ({C}alloria, {G}yrothyris, {T}erebratella), but the position of {T}erebratella with respect to {C}alloria and {G}yrothyris remains weakly established. {T}hese sequences disagree inexplicably about the closeness of the relationship between {N}eothyris parva and {N}. lenticidaris. {A}nalyses of the first sequences from {C}alloria variegata, a species restricted to the {H}auraki {G}ulf, {N}ew {Z}ealand, are consistent with the possibility that it originated locally, and recently, from {C} inconspicua. {M}agellania venosa from {S}. {A}merica/{F}alklands joins with {A}ntarctic {M}agellaninia fragilis and {M}. joubini to form an r{DNA} clade that excludes {T}erebratalia as the putative sister-group of the {N}ew {Z}ealand terebratelloid clade. {T}he cox1(but not the r{DNA}) sequences of the {N}ew {Z}ealand clade pass a test for clock-like rates of evolution, and maximum likelihood pairwise distances suggest that if genetic isolation between the ancestor of {A}ntarctic {M}agellania and the last common ancestor of the {N}ew {Z}ealand terebratelloid clade was initiated by separation of the {A}ntarctic and {N}ew {Z}ealand plates similar to 90 {M}ya, isolation from {M}. venosa was initiated earlier, perhaps similar to 145 {M}ya. {H}owever, in the simple phylogenctic reconstruction presented here from cox1 sequences, {S}. {A}merican and {A}ntarctic {M}agellania spp. do not yield a well-supported clade, perhaps because of differences in base composition.},
  keywords = {{D}na sequence ; {G}eographical distribution ; {G}yrothyris ; {M}olecular systematics ; {M}orphological systematics ; {R}dna ; {T}erebratella ; {M}olecular evidence ; {G}ene-sequences ; {B}rachiopods ; {P}acific ; {P}rotostomes ; {P}opulations ; {P}hylogeny ; {P}horonids ; {I}slands ; {F}auna},
  booktitle = {},
  journal = {{E}arth and {E}nvironmental {S}cience {T}ransactions of the {R}oyal {S}ociety of {E}dinburgh},
  volume = {98},
  numero = {{P}art 3-4},
  pages = {425--435},
  ISSN = {1755-6910},
  year = {2008},
  DOI = {10.1017/s1755691008075142},
  URL = {https://www.documentation.ird.fr/hor/fdi:010067970},
}