Children (21 direct children, 21 direct and indirect children):
Lingula tumidula
Lingula rostrum
Lingula adamsi
Lingula translucida
Lingula reevei
Lingula parva
Lingula reevii
Lingula unguis
Lingula anatina
Lamp shell
Lingula tenuissima
Lingula haasi
Lingula albida
Lingula audebarti
Lingula bancrofti
Lingula exusta
Lingula hians
Lingula murphiana
Lingula ovalis
Lingula pyramidata
Lingula semen
Lingula shantungensis