Holasteroida - Holasteroida
| Holasteroida | |
|---|---|
 | |
| Pourtalesia wandeli | |
Ilmiy tasnif  | |
| Qirollik: | Animalia |
| Filum: | Ekinodermata |
| Sinf: | Ekinoidea |
| Subklass: | Evechinoidea |
| Infraklass: | Tartibsizlik |
| Super buyurtma: | Atelostomata |
| Buyurtma: | Holasteroida Durham va Melvill, 1957 yil |
Holasteroida tartibsiz buyruq dengiz kirpi.
Xususiyatlari
Ceratophysa ceratopyga A. Agassiz (1881) tomonidan
Ushbu notekis dengiz kirpiklari ayniqsa sezilarli ikki tomonlama simmetriya bilan ajralib turadi, shu jumladan yuqori cho'zilgan apikal tizim uchun. Kabi ba'zi zamonaviy tubsiz guruhlarda Pourtalesiidae, ba'zi turlari hatto shishasimon shaklga ega. Og'izda (peristomada) an mavjud emas Aristotelning fonari. Anus (periprokt) testning atrofiga qarab ko'chib o'tdi. Plastron hech qachon amfisternaga ega emas.[1]
Fosil Hemipneustes pyrenaicus (Hemipneustidae, Maastrixtiy )
Ushbu buyruq pastki qismida paydo bo'lganga o'xshaydi Bo'r.[1]
Oilalar ro'yxati
Ga binoan Dunyo dengiz turlari turlarining reestri :
- Oila Hemipneustidae (Lambert, 1917) †
- tur Hemipneustes L. Agassiz, 1835 yil †
- tur Medjesiya Jefferi, 1997 yil †
- tur Opisopneustes Gautier, 1889 yil †
- tur Plesiohemipneustes Smit va Rayt, 2003 yil †
- tur Toksopatagus Pomel, 1883 yil †
- Sub-order Meridosternata (Loven, 1883)
- Infra-buyurtma Kardiyasterina †
- Oila Kardiyasteridae Lambert, 1917 yil †
- Oila Stegasteridae Lambert, 1917f †
- Oila Echinocorythidae Rayt, 1857 yil †
- Oila Holasteridae Piktet, 1857 yil †
- Jins Salvaster Saucède, Dudicourt & Courville, 2012 yil †
- Infra-buyurtma Urechinina
- Oila Kalymnidae Mortensen, 1907 yil
- Oila Carnarechinidae Mironov, 1993 y
- Oila Corystusidae Foster va Filipp, 1978 yil
- Oila Plexechinidae Mooi va Devid, 1996 y
- Oila Pourtalesiidae A. Agassiz, 1881 yil
- Oila Urechinidae Dunkan, 1889 yil
- Infra-buyurtma Kardiyasterina †
- Oila Pseudholasteridae (Smit va Jefferi, 2000) †
- tur Eoholaster Solovjev, 1989 yil †
- tur Jiraliaster Foster va Filipp, 1978 yil †
- tur Pseudholaster Pomel, 1883 yil †
- tur Taphraster Pomel, 1883 yil †
- Oila Stenonasteridae (Lambert, 1922) †
- tur Stenonaster Lambert, 1922 yil †
Adabiyotlar
- ^ a b "Holasteroida". Echinoid katalogi.
- Holasteroida da Tabiiy tarix muzeyi
- Kroh A, Mooi R (tahrir). "Holasteroida". Butunjahon Echinoidea ma'lumotlar bazasi. Dunyo dengiz turlari turlarining reestri.
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