#NEXUS
[!This data set was downloaded from TreeBASE, a prototype 
relational database of phylogenetic knowledge. TreeBASE has 
been supported by the NSF, Harvard University, and UC Davis, and 
Leiden University. Please do not remove this acknowledgment 
from the Nexus file.

TreeBASE © 1994-2006.

Study reference: 
Anderson, F. E., A. J. Córdoba and M. Thollesson. 2003. Bilaterian phylogeny based on analyses of a region of the sodium-potassium ATPase alpha subunit gene. Journal of Molecular Evolution, in press.

Study accession number = S904
]
BEGIN TREES;

[! Tree accession#: Tree2658]
	TRANSLATE
		1	'Strongylocentrotus_purpuratus',
		2	'Scolopocryptops_sexspinosa',
		3	'Pantinonemertes_sp._nov.',
		4	'Oreochromis_mossambicus',
		5	'Watersipora_subtorquata',
		6	'Terebratalia_transversa',
		7	'Drosophila_melanogaster',
		8	'Lottia_austrodigitalis',
		9	'Lepidochitona_hartwegi',
		10	'Caenorhabditis_elegans',
		11	'Catostomus_commersoni',
		12	'Ctenocephalides_felis',
		13	'nematoceran_dipteran',
		14	'brachyceran_dipteran',
		15	'Onchidella_borealis',
		16	'Phoronopsis_viridis',
		17	'Garypus_californica',
		18	'Callinectes_sapidus',
		19	'Artemia_franciscana',
		20	'Torpedo_californica',
		21	'Schistosoma_mansoni',
		22	'Acrosternum_hilare',
		23	'Hubrechtella_dubia',
		24	'Octopus_rubescens',
		25	'Lampsilis_cardium',
		26	'Harmonia_axyridis',
		27	'oniscidean_isopod',
		28	'Loxoceles_reclusa',
		29	'Anguilla_anguilla',
		30	'Rattus_norvegicus',
		31	'Asterina_miniata',
		32	'Dugesia_japonica',
		33	'Tenebrio_molitor',
		34	'Canis_familiaris',
		35	'Carcinus_maenas',
		36	'Tegula_brunnea',
		37	'Hydra_vulgaris',
		38	'Xenopus_laevis',
		39	'Macoma_nasuta',
		40	'Gallus_gallus',
		41	'Lineus_ruber',
		42	'Conopeum_sp.',
		43	'Doru_lineare',
		44	'Caprella_sp.',
		45	'diplopodan_1',
		46	'diplopodan_2',
		47	'Bufo_marinus',
		48	'Homo_sapiens',
		49	'Danio_rerio',
		50	'Ovis_aries',
		51	'Sus_scrofa',
		52	'opilionid'	;
	TREE 'Fig._4' =  [&R] (37,(((20,(((49,11),(29,4)),((38,47),(40,((30,50),(51,(34,48)))Mammalia))))Vertebrata,((((((10,19),(((18,35),27),44)),((((7,14),13)Diptera,((12,22),43)),(26,33)Coleoptera)Hexapoda,(45,46)),2),((52,17),28)Arachnida),((((32,21)Platyhelminthes,((42,5)Bryozoa,((9,24),((39,25)Bivalvia,((8,36),15)Gastropoda))Mollusca),3),41),(16,6),23)Lophotrochozoa)),(31,1)Echinodermata)Bilateria);

END;