Holectypus
| Holectypus | |
|---|---|
Ilmiy tasniflash | |
| Olam: | Animalia |
| Tip: | Echinodermata |
| Sinf: | Echinoidea |
| Turkum: | Holectypoida |
| Urugʻ: |
Holectypus Desor, 1842 |
Holectypus — dengiz kirpisilarning yo‘q bo‘lgan urug‘i hisoblanadi. Bu urug‘ Yura davridan boshlab Bo‘r davrigacha yashagan[1]. Uning qoldiqlari dunyoning turli hududlarida topilgan[2].
Manbalar
- ↑ Clark, William Bullock; Clark, William Bullock; Twitchell, M. W.. The Mesozoic and Cenozoic Echinodermata of the United States. Washington: Govt. print. off, 1915.
- ↑ Andoza:Cite PBDB