<prompt> Fingqa isihloko: Kuye kwatholakala isiponji esicishe sibe sesimweni esihle esineminyaka eyizigidi ezingu-600 ubudala eningizimu yeChina. Ososayensi bakholelwa ukuthi isiponji esimelela isilwane sokuqala kunazo zonke emhlabeni - yisona esidala kunazo zonke ezake zatholakala. Ukutholakala kwayo kubuyisela emuva ukuqala kokuziphendukela kwemvelo kwezilwane ezinamaseli amaningi ngaphambi kokuqhuma kweCambrian eminyakeni eyizigidi ezingu-541 edlule. Isiponji esineminyaka eyizigidi ezingama-600 ubudalaesicishe sibe sesimweni esihlesitholwe eningizimu yeChina. Ososayensi bakholelwa ukuthi isiponji esimele isidalwa esiyisisekelo kunazo zonke emhlabeni - yisona esidala kunazo zonke ezake zatholakala. Ukuqhuma kweCambrian, cishe eminyakeni eyizigidi ezingu-541 edlule, kwakuwukugqashuka kwezilwane ezihlukahlukene endaweni yokuziphendukela kwemvelo. Ngaphambi kweminyaka ecishe ibe yizigidi ezingu-580 edlule, izidalwa eziningi eziphilayo zazilula, zakhiwa amangqamuzana ngamanye ngezinye izikhathi ahlelwe aba amakoloni. Phakathi neminyaka eyizigidi ezingu-70 kuya kwezingu-80 eyalandela, izinga lokuziphendukela kwemvelo landa futhi ukuhlukahluka kwezinto eziphilayo kwaqala ukufana nokwanamuhla. Yaphela ngesenzakalo sokushabalala kweCambrian-Ordovician, cishe eminyakeni eyizigidi ezingu-488 edlule. Lokhu okutholakele kwakamuva kubuyisela emuva usuku lokuziphendukela kwemvelo kwezilwane ezinamaseli amaningi eminyakeni eyizigidi ezingu-60 ngaphambi kokuqala kokuqhuma kweCambrian. Izipanji, ezaziwa nangokuthi ama-Porifera, ziyizidalwa ezinamaseli amaningi ezinemizimba embozwe izimbotshana nemisele evumela amanzi ukuba ajikeleze kuzo. Ososayensi kusafanele baqinisekise ukuthi zaqala nini ukubonakala eMhlabeni. Kulinganiselwa ukuthi kusukela eminyakeni eyizigidi ezingu-700 edlule kuya esikhathini esaziwa ngokuthi isikhathi seCambrian, esenzeka eminyakeni eyizigidi ezingu-541 kuya kwezingu-485 edlule. Ukutholakala kwamuva kwakuyobeka lesi siponji eminyakeni engaba yizigidi ezingu-60 ngaphambi kokuba iCambrian iqale. Abacwaningi bafuna ukunquma usuku ngoba bakholelwa ukuthi luyisihluthulelo sokuqonda ukuziphendukela kwemvelo kwezilwane zakuqala. Ukuhlukana phakathi kwezipanji nezinye izilwane eziningi kwakuyisenzakalo esikhulu emlandweni wokuqala wokuphila kule planethi yethu. Abacwaningi baseNanjing Institute of Geology and Palaeontology bathi lesi siponji, esitholakala eDoushantuo Formation, singamamilimitha angaphezu kwelilodwa ukuphakama nobubanzi. Ukuze babheke kahle, ososayensi basebenzisa...  <response>: Lesi siponji satholakala eDoushantuo Formation eningizimu yeChina. Kusikisela ukuthi ukuziphendukela kwemvelo kwamangqamuzana amaningi kwenzeka ngaphambi kokuqhuma kweCambrian. Kucatshangwa ukuthi ukuqhuma kweCambrian kwaqala eminyakeni eyizigidi ezingu-541 edlule. Ukuqhuma kubhekisela esikhathini lapho izidalwa eziyinkimbinkimbi zavela khona ngokushesha. 