原标题：清纯校花在胯下欲仙欲死

学习快评丨qibao666888　　层🦑(ceng)孔👎(kong)海🚬(hai)绵👶(mian)是🕦(shi)奥💚(ao)陶🧡(tao)纪👅(ji)-泥🐾(ni)盆⏭(pen)纪🏎(ji)(古⏬(gu)生🏾(sheng)代🐥(dai))标🕢(biao)志🏊(zhi)性🕣(xing)的🏴(de)浅🖼(qian)海🎵(hai)造🛁(zao)礁💊(jiao)动🦋(dong)物💷(wu)之🥞(zhi)一🎨(yi)🕑，在😯(zai)礁🔟(jiao)构⛄(gou)建🏥(jian)中💗(zhong)的🍘(de)作🧀(zuo)用🐗(yong)、生💧(sheng)态〽(tai)地💋(di)位📢(wei)和🔅(he)地📒(di)理🈁(li)分🐔(fen)布✅(bu)上🚂(shang)类⛵(lei)似♏(si)于👜(yu)现💂(xian)代💄(dai)珊🚠(shan)瑚👼(hu)🚖。⬆在🙅(zai)中🎎(zhong)奥💠(ao)陶🚣(tao)世🤙(shi)达📝(da)瑞🎖(rui)威🔫(wei)尔🏍(er)晚🥛(wan)期🌭(qi)(距🤔(ju)今👠(jin)4.6亿👗(yi)年📩(nian)前🎇(qian))🕑，层👂(ceng)孔😁(kong)海🧖(hai)绵🏒(mian)几📓(ji)乎🦗(hu)同👶(tong)时🎫(shi)融👛(rong)入🎓(ru)热🧢(re)带🚮(dai)至🚬(zhi)亚🛺(ya)热🌺(re)带☕(dai)气⭕(qi)候🦐(hou)区🕞(qu)的🏩(de)全🏮(quan)球🔍(qiu)礁😓(jiao)生➗(sheng)态🎁(tai)系📯(xi)统🍑(tong)🚖。因📄(yin)为🎶(wei)受➰(shou)到🚬(dao)奥⛎(ao)陶🛍(tao)纪💬(ji)生🎟(sheng)物🤣(wu)大🖋(da)辐⚡(fu)射🥏(she)事🍍(shi)件🕶(jian)期🎾(qi)间💯(jian)海💴(hai)洋🌶(yang)生🧙(sheng)物🤐(wu)多📰(duo)样👌(yang)化🚉(hua)的🤺(de)影🛳(ying)响📥(xiang)🕑，这🤯(zhe)一📂(yi)时📃(shi)期🥡(qi)的⭕(de)礁🥇(jiao)生😎(sheng)态🛋(tai)系😚(xi)统😚(tong)从🛥(cong)微🐼(wei)生🐽(sheng)物🙍(wu)主🌥(zhu)导🥋(dao)向📬(xiang)层🏕(ceng)孔🍘(kong)海🤷(hai)绵🏯(mian)和🕐(he)珊🧐(shan)瑚🏙(hu)主🈂(zhu)导🍥(dao)转🌺(zhuan)变🔹(bian)🚖。然🌕(ran)而🧤(er)🕑，层🐹(ceng)孔🎖(kong)海🔵(hai)绵📃(mian)突🚿(tu)然🆔(ran)融🐦(rong)入🏼(ru)礁🏔(jiao)生🏨(sheng)态🌵(tai)系🍝(xi)统🥝(tong)引⬆(yin)发🎹(fa)一🎣(yi)系🔭(xi)列✂(lie)有🤒(you)趣♐(qu)的🚬(de)关🧡(guan)键🔭(jian)科🤧(ke)学🚨(xue)问🗝(wen)题🏟(ti)：最📨(zui)早🚚(zao)的✌(de)层💴(ceng)孔🐖(kong)海📅(hai)绵🦍(mian)何🙉(he)时🈳(shi)出🈵(chu)现🤩(xian)？🐶它🗾(ta)们🧞(men)是🥉(shi)如🏾(ru)何🛎(he)获🚦(huo)得🚳(de)矿🌊(kuang)化🐟(hua)骨🏎(gu)骼❔(ge)的🛎(de)？最🎺(zui)早🧙(zao)的💙(de)层📶(ceng)孔🔻(kong)海🌐(hai)绵🤙(mian)在🥇(zai)古📀(gu)生🔣(sheng)态🍜(tai)中⬆(zhong)扮🐓(ban)演〰(yan)了♓(le)什🥊(shen)么🍼(me)角🤩(jiao)色🛎(se)？它🧜(ta)们🕴(men)如🕳(ru)何🚳(he)成⛳(cheng)为🗓(wei)礁🔬(jiao)生🕔(sheng)态📨(tai)系🛴(xi)统💋(tong)的🐙(de)重💒(zhong)要🤣(yao)组💆(zu)成🐣(cheng)部🦌(bu)分😴(fen)？一🈂(yi)系👫(xi)列🚱(lie)问🧕(wen)题🎇(ti)因🚯(yin)为🥄(wei)缺🔎(que)少🤫(shao)早⏱(zao)期💷(qi)层🏴(ceng)孔👭(kong)海🔌(hai)绵🆙(mian)的📮(de)化🐩(hua)石🌝(shi)记➿(ji)录💛(lu)而🏊(er)无🌠(wu)从🕡(cong)得👶(de)知🤶(zhi)🚖。　　层🔫(ceng)孔🔔(kong)海👸(hai)绵⏩(mian)是🎲(shi)奥🛬(ao)陶💥(tao)纪🌳(ji)-泥📅(ni)盆🏂(pen)纪💔(ji)(古💝(gu)生🚜(sheng)代🍼(dai))标🚗(biao)志🐘(zhi)性🥧(xing)的🅱(de)浅🐘(qian)海🔺(hai)造🦃(zao)礁👖(jiao)动📌(dong)物🐦(wu)之🔱(zhi)一🕡(yi)🛃，在👆(zai)礁😂(jiao)构🥙(gou)建🖊(jian)中🔺(zhong)的🥣(de)作💒(zuo)用🥢(yong)、生🍊(sheng)态🛑(tai)地👫(di)位🐌(wei)和🤸(he)地🗝(di)理❄(li)分🦐(fen)布📬(bu)上🍜(shang)类😬(lei)似📆(si)于💞(yu)现🏘(xian)代🥧(dai)珊🖥(shan)瑚🔜(hu)➿。💲在😮(zai)中🌼(zhong)奥💧(ao)陶🎎(tao)世😐(shi)达😼(da)瑞✒(rui)威📌(wei)尔🔒(er)晚😀(wan)期💒(qi)(距☕(ju)今💊(jin)4.6亿🔆(yi)年🕟(nian)前🚖(qian))🛃，层😗(ceng)孔🚫(kong)海🤳(hai)绵⬇(mian)几🤶(ji)乎⛅(hu)同🔐(tong)时🏫(shi)融🚡(rong)入👔(ru)热🆗(re)带📚(dai)至👣(zhi)亚📵(ya)热😑(re)带🎨(dai)气🚦(qi)候🗑(hou)区🛡(qu)的🚌(de)全🐒(quan)球🎈(qiu)礁🌭(jiao)生📧(sheng)态🐥(tai)系📠(xi)统🖐(tong)➿。因🤦(yin)为🥊(wei)受🎨(shou)到🌀(dao)奥♏(ao)陶🛄(tao)纪🚍(ji)生🆗(sheng)物🚠(wu)大💔(da)辐🤗(fu)射📃(she)事🥃(shi)件🎨(jian)期🈂(qi)间🤲(jian)海🆓(hai)洋🎉(yang)生😈(sheng)物⛺(wu)多🦌(duo)样🚞(yang)化🙎(hua)的㊗(de)影🈳(ying)响🎽(xiang)🛃，这👟(zhe)一🚅(yi)时🚾(shi)期⤵(qi)的🥅(de)礁🎍(jiao)生📋(sheng)态🏆(tai)系🌏(xi)统🗡(tong)从🚐(cong)微🌡(wei)生🎢(sheng)物📛(wu)主📁(zhu)导🚞(dao)向♟(xiang)层😑(ceng)孔🗒(kong)海😵(hai)绵😊(mian)和👵(he)珊🏾(shan)瑚🆑(hu)主📳(zhu)导🥇(dao)转🔜(zhuan)变👤(bian)➿。然🤐(ran)而👁(er)🛃，层♏(ceng)孔❕(kong)海😸(hai)绵👁(mian)突🤪(tu)然⛵(ran)融🏑(rong)入♟(ru)礁🎙(jiao)生💖(sheng)态😠(tai)系🍀(xi)统🔲(tong)引🐓(yin)发🍁(fa)一😸(yi)系🥞(xi)列🏂(lie)有🕤(you)趣🎴(qu)的🙅(de)关🎆(guan)键👛(jian)科🥁(ke)学📝(xue)问🐵(wen)题😋(ti)：最🥨(zui)早🚑(zao)的🌫(de)层⌛(ceng)孔🏃(kong)海👕(hai)绵🚂(mian)何🤑(he)时🍮(shi)出⭐(chu)现💱(xian)？🖨它🔣(ta)们⌚(men)是😶(shi)如👟(ru)何⚓(he)获🚆(huo)得🗡(de)矿📝(kuang)化🕘(hua)骨🏣(gu)骼🍯(ge)的😓(de)？最💲(zui)早⌚(zao)的🔖(de)层🚩(ceng)孔🤵(kong)海🚿(hai)绵🚇(mian)在💂(zai)古💔(gu)生🐭(sheng)态🗼(tai)中🧤(zhong)扮😳(ban)演🏍(yan)了🦉(le)什🙏(shen)么🗯(me)角🦕(jiao)色🎡(se)？它🔡(ta)们🚮(men)如🎌(ru)何📕(he)成📧(cheng)为🔒(wei)礁🏫(jiao)生🦑(sheng)态🧜(tai)系🏟(xi)统😾(tong)的🐎(de)重🎹(zhong)要⏹(yao)组🕦(zu)成🔣(cheng)部🎲(bu)分🙎(fen)？一💗(yi)系🅿(xi)列🕵(lie)问🍕(wen)题🍚(ti)因🧦(yin)为🎍(wei)缺🏋(que)少🛂(shao)早🤸(zao)期🍠(qi)层⏬(ceng)孔🎡(kong)海🍠(hai)绵🚳(mian)的📗(de)化🏻(hua)石🤹(shi)记💵(ji)录🏁(lu)而🚂(er)无👃(wu)从🔟(cong)得🧀(de)知📼(zhi)➿。。