Bryozoans hnub nyoog pes tsawg?

Cov txheej txheem:

Bryozoans hnub nyoog pes tsawg?
Bryozoans hnub nyoog pes tsawg?

Video: Bryozoans hnub nyoog pes tsawg?

Video: Bryozoans hnub nyoog pes tsawg?
Video: Yuav tos koj tsawg xyoo mam tau ntsib dua - mloob kho siab zim xwb - hmoob music 03/04/2018 2024, Hlis ntuj nqeg
Anonim

Bryozoans yog cov pob txha pob txha. Cov laus tshaj plaws yog los ntawm cov pob zeb Cambrian tshaj 500 lab xyoo, thiab lawv cov xeeb ntxwv nyob niaj hnub no. Thaum lub sij hawm Mississippian Lub Sijhawm bryozoa tau ntau heev uas lawv cov pob txha tawg ua rau tag nrho cov limestone txaj.

bryozoans tau nyob ntev npaum li cas?

Marine bryozoans tshwm sim hauv cov ntaub ntawv pob txha nyob rau hauv lub sijhawm thaum ntxov ntawm Ordovician Period, kwv yees li 485 lab xyoo dhau los.

bryozoans fossils hnub nyoog pes tsawg?

Bryozoans tau nyob ib puag ncig yuav luag 500, 000, 000 xyoo Fossils muaj nyob hauv Ordovician Lub Sijhawm pob zeb thiab lawv tau sawv cev rau txhua lub sijhawm mus txog rau tam sim no. Qhov tseeb, cov moss tsiaj tej zaum yuav yog cov pob txha loj tshaj plaws hauv ntiaj teb. Lawv zwm rau lub phylum hu ua Lophophorata.

bryozoans zoo li cas?

Cov tsiaj me me no feem ntau koom ua ke los ntawm kev faib ua cov duab uas zoo li spaghetti dua li cov tsiaj nyob. Bryozoans yog tsim los ntawm cov neeg nyob ib puag ncig, hu ua zooids. … Zooids yog me me (tsawg dua ib peb caug-ob ntawm ib nti), thiab tuaj nyob rau hauv cov duab xws li oval thiab lub thawv-zoo li mus rau vase-zoo li thiab tubular

Archimedes fossils hnub nyoog pes tsawg?

Fossil Bryozoan Archimedes, cov qauv tiag tiag muag ntawm tus nqi pheej yig. Cov pob txha no yog los ntawm Mississippian Lub Sijhawm. Lawv muaj hnub nyoog 324 lab xyoo thiab tau pom nyob hauv Crawford County, Indiana.

Pom zoo: