Children (184 direct children, 186 direct and indirect children):
Cardium costatum
Great ribbed cockle
Cardium echinatum
Acanthocardia echinata
Cardium scabrum
Cardium exiguum
Cardium pavcicostatum
Cardium ovale
Cardium indicum
Cardium maxicostatum
Cardium aspersum
Cardium cumingii
Cardium kalamantanum
Cardium obovale
Cardium orbita
Cardium pulchellum
Cardium robillardi
Cardium senticosum
Cardium papillosum
Cardium ringens
Cardium semisulcatum
Cardium speciosum
Cardium variegatum
Cardium neckerianum
Cardium alpinum
Cardium vassiacense
Cardium morinicum
Cardium bernouilense
Cardium delibatum
Cardium morosum
Cardium purbeckense
Cardium frausum
Cardium montignyacum
Cardium foucardi
Cardium forbesi
Cardium bellegardense
Cardium aubersonense
Cardium jaccardi
Cardium gillieroni
Cardium valdense
Cardium germani
Cardium landeronense
Cardium pellati
Cardium petilum
Cardium verveceum
Cardium cartieri
Cardium laitmairense
Cardium maillardi
Cardium ritteneri
Cardium zetes
Cardium ursicinum
Cardium ledonicum
Cardium thevenini
Cardium savignaense
Cardium blyense
Cardium berlieri
Cardium adamsii
Cardium agassizii
Cardium alabastrum
Cardium amboinense
Cardium angulatum
Cardium antillarum
Cardium argovianum
Cardium aurantiacum
Cardium avisanense
Cardium bechei
Cardium bicolor
Cardium brachytonum
Cardium brasilianum
Cardium bruguierei
Cardium brunneri
Cardium buelowi
Cardium carneosum
Cardium casertanum
Cardium ciliare
Cardium cochleatum
Cardium coefiensis
(tree size 2)
Cardium collineum
Cardium cooperii
Cardium coxi
Cardium crassispinosum
Cardium crenatum
Cardium cruentatum
Cardium danubianum
Cardium debile
Cardium decoratum
Cardium delicatulum
Cardium deshayesianum
Cardium diluvianum
Cardium dionaeum
Cardium dissimile
Cardium distortum
Cardium dupuchense
Cardium dyoniseum
Cardium edentula
Cardium eichwaldii
Cardium elenense
Cardium emarginatum
Cardium enode
Cardium erugatum
Cardium exile
Cardium exstriatulum
Cardium facetum
Cardium flavum
Cardium fornasinianum
Cardium fragum
Cardium fucatum
Cardium gilchristi
Cardium girondicum
Cardium greyi
Cardium harpa
Cardium hayesii
Cardium helleri
Cardium hillanum
Cardium huttoni
Cardium incarnatum
Cardium intextum
Cardium inversum
Cardium isocardia
Cardium junoniae
Cardium kaiparaensis
Cardium laeve
Cardium lamarcki
Cardium lepidum
Cardium lithocardium
Cardium loroisii
Cardium lucinoides
Cardium lyratum
Cardium madridi
Cardium maorinum
Cardium mendanaense
Cardium mercatorium
Cardium minutum
Cardium multicostatum
Cardium multiradiatum
Cardium mundum
Cardium neozelandicum
Cardium nivale
Cardium nodosum
Cardium panamense
Cardium patulum
Cardium pectiniforme
Cardium pennantii
Cardium peregrinum
Cardium perrieri
Cardium pesolinum
Cardium philippinense
Cardium ponteleviense
Cardium porulosum
Cardium priscum
Cardium protractum
Cardium pseudocatillus
Cardium pubescens
Cardium punctulatum
Cardium quadrarium
Cardium rachitis
Cardium raricostatum
Cardium replicatum
Cardium reticulatum
Cardium rhomboides
Cardium robustum
Cardium rubicundum
Cardium rubrum
Cardium scruposum
Cardium semipunctatum
Cardium spatiosum
Cardium spinosa
Cardium stantoni
Cardium strangi
Cardium stricklandi
Cardium subrugosum
Cardium subtrigonum
Cardium suecicum
Cardium suediense
Cardium tenue
Cardium tenuisulcatum
Cardium textum
Cardium triste
Cardium turtoni
Cardium unedo
Cardium unimaculatum
Cardium vertebratum
Cardium virgineum
Cardium vitellinum
Cardium waitakiense
Cardium zonatum