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Base of the evolutionary tree for Pen Shells (
Atrina
)
← parent
Pen Shells (
Atrina
) (46 species)
Atrina stenotrochus
horse mussel (
Atrina squamifera
)
Atrina obesa
Atrina boreoborneensis
Atrina oldroydii
Atrina dentifera
Atrina serra
Atrina serrata
Atrina streptaxiformis
Atrina marquesana
Atrina tuberculosa
Atrina teramachii
Atrina tasmanica
stiff penshell (
Atrina rigida
)
Atrina ascotrochus
Atrina exusta
Atrina maura
Atrina strophostoma
Atrina ferelaevis
flag pen shell (
Atrina vexillum
)
Atrina perryae
Atrina lischkeana
Pen Shell (
Atrina pectinata
)
Atrina penna
Atrina kinoshitai
Atrina brevispira
Atrina dioryx
Atrina pini
Atrina japonica
Atrina paricostata
Atrina basteroti
Atrina assimilis
Atrina chinensis
Atrina cumingii
half-naked penshell (
Atrina seminuda
)
Atrina turgida
Atrina recta
Fan mussel (
Atrina fragilis
)
Atrina pertusa
Atrina chautardi
Atrina texta
Atrina zelandica
Atrina strangei
Atrina harrisoni
Atrina inflata
Atrina hystrix
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Encyclopedia of Life
NCBI (genetics)
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Open Tree of Life