Isastraea was named by Milne-Edwards and Haime (1851).It was misspelled as Isstraea by Sepkoski (2002); it was corrected as Isastrea by Prinz (1991), Lauxmann (1991) and Baron-Szabo (2006).It was assigned to Montlivaltiidae by Beauvais (1986) and Prinz (1991); to Isastraeidae by Roniewicz (1976) and Lauxmann (1991); to Scleractinia by Sepkoski (2002); and to Isastreidae by Baron-Szabo (2006).Isastraea arachnoidea, I. alimena, I. angulosa, I. bernardi, I. bernardiana, I. bernensis, I. browni, I. cesarensis, I. collignoni, I. crassa, I. crassisepta, I. decorata, I. deligata, I. elegans, I. excentrica, I. explanata, I. explanulata, I. fallax, I. favosiformis, I. fromenteli, I. goldfussi, I. greppini, I. gresslyi, I. helianthoides, I. hemisphaerica, I. hourcqi, I. incerta, I. kosodeensis, I. limitata, I. marcoui, I. matumotoi, I. nantuacumensis, I. neocomiensis, I. parvistella, I. propinqua, I. qingyanensis, I. rariseptata, I. richardsoni, I. robusta, I. salinensis, I. sinemuriensis, I. splendida, I. sugiyamai, I. superficialis, I. taruensis, I. tenuisepta, I. tenuistriata, I. whitneyi, I. yuraensis, Parisastraea collignoniPlacastrea was named by Stoliczka (1873).It was synonymized subjectively with Isastrea by Baron-Szabo (2009).It was assigned to Montlivaltiidae by Löser et al. (2009).Parisastraea was named by Alloiteau (1958) [Sepkoski's age data: J m Sepkoski's reference number: 658]. It is not extant.It was synonymized subjectively with Isastrea by Kiessling (2014).It was assigned to Isastreidae by Alloiteau (1958); and to Scleractinia by Sepkoski (2002).1851 Isastraea Milne-Edwards and Haime1873 Placastrea Stoliczka1958 Parisastraea Alloiteau1976 Isastraea Roniewicz1986 Isastraea Beauvais1991 Isastrea Lauxmann1991 Isastrea Prinz2002 Isstraea Sepkoski, Jr.2002 Parisastraea Sepkoski, Jr.2006 Isastrea Baron-Szabo p. 452009 Placastrea Löser et al.genus Isastrea (Milne-Edwards and Haime 1851)
