化石被(bei)發現于(yu)埃(ai)及的拜哈里耶組,該(gai)地層(ceng)屬于(yu)上白堊紀的海岸沉積(ji)層(ceng)。這(zhe)(zhe)些(xie)(xie)化石是從(cong)1935年以來(lai),拜哈里耶組首度發現的四(si)足(zu)總(zong)綱動物。潮(chao)汐龍(long)(long)的肱骨長(chang)(chang)達(da)1.69米,比任何已(yi)知白堊紀的蜥(xi)腳類恐龍(long)(long)還長(chang)(chang)。當地的尸(shi)體被(bei)保存(cun)(cun)于(yu)由潮(chao)汐帶來(lai)的沉積(ji)層(ceng),這(zhe)(zhe)些(xie)(xie)沉積(ji)層(ceng)包(bao)含了紅(hong)樹林植(zhi)被(bei)的化石。潮(chao)汐龍(long)(long)所棲息的紅(hong)樹林生態(tai)系統,位于(yu)古地中海的南(nan)岸。潮(chao)汐龍(long)(long)是第一(yi)種(zhong)被(bei)證實存(cun)(cun)活在(zai)紅(hong)樹林生態(tai)環境的恐龍(long)(long)。
行(xing)動(dong)是(shi)(shi)不(bu)靈便(bian)的(de)(de)。要捕捉動(dong)物來吃(chi),只能守株待(dai)兔了。好在(zai)它(ta)(ta)不(bu)吃(chi)肉,就(jiu)吃(chi)植(zhi)物,而(er)它(ta)(ta)住的(de)(de)這(zhe)地方,當時(shi)(shi)(shi)(shi)還不(bu)是(shi)(shi)沙漠,而(er)是(shi)(shi)海(hai)(hai)濱。這(zhe)里(li)漲潮時(shi)(shi)(shi)(shi)是(shi)(shi)海(hai)(hai),退潮時(shi)(shi)(shi)(shi)是(shi)(shi)陸,海(hai)(hai)水是(shi)(shi)咸的(de)(de),一(yi)般陸生(sheng)植(zhi)物不(bu)能在(zai)這(zhe)里(li)生(sheng)長,但紅樹mangrove卻喜歡這(zhe)種地方,加上(shang)那時(shi)(shi)(shi)(shi)氣(qi)候炎熱,長得(de)很(hen)快(kuai),足供恐(kong)龍(long)(long)在(zai)此飽(bao)餐。須(xu)知它(ta)(ta)的(de)(de)軀體如此巨大,要維持(chi)生(sheng)存,不(bu)多吃(chi)點(dian)不(bu)行(xing)。據(ju)專家(jia)研究,象這(zhe)樣的(de)(de)巨型恐(kong)龍(long)(long),一(yi)天二十四(si)小時(shi)(shi)(shi)(shi),有十幾個小時(shi)(shi)(shi)(shi)在(zai)吃(chi)東西。這(zhe)個地方不(bu)僅食(shi)物多,有水的(de)(de)時(shi)(shi)(shi)(shi)候,還可(ke)以(yi)(yi)借助(zhu)水的(de)(de)浮力,比較方便(bian)地覓食(shi),真是(shi)(shi)它(ta)(ta)們的(de)(de)天堂,所以(yi)(yi)這(zhe)里(li)還會有找到恐(kong)龍(long)(long)化石的(de)(de)希望
人們(men)對于(yu)潮(chao)汐(xi)(xi)龍(long)(long)(long)的(de)所(suo)知甚少,所(suo)以很難去估計(ji)潮(chao)汐(xi)(xi)龍(long)(long)(long)的(de)正確體型(xing)大小。然(ran)而有(you)限的(de)化(hua)石顯示,潮(chao)汐(xi)(xi)龍(long)(long)(long)是(shi)被人們(men)所(suo)發現最巨(ju)大的(de)恐龍(long)(long)(long)之一(yi),體重被估計(ji)有(you)60-80公噸。肯尼思·卡彭特(Kenneth Carpenter)以薩爾(er)塔龍(long)(long)(long)作(zuo)為參考,估計(ji)潮(chao)汐(xi)(xi)龍(long)(long)(long)的(de)身(shen)長約26米(mi)。如同(tong)其他(ta)的(de)泰坦巨(ju)龍(long)(long)(long)類,潮(chao)汐(xi)(xi)龍(long)(long)(long)擁(yong)有(you)寬廣的(de)姿勢,身(shen)上可(ke)能擁(yong)有(you)防御用(yong)的(de)皮內成骨(Osteoderms)。潮(chao)汐(xi)(xi)龍(long)(long)(long)可(ke)能被大型(xing)掠食動物所(suo)獵食,例如鯊齒龍(long)(long)(long)。
潮汐(xi)龍(long)的(de)頭(tou)很小,腿也不(bu)夠(gou)長,可以想象(xiang)得(de)出,行動(dong)是不(bu)靈便的(de),要捕捉動(dong)物(wu)來吃,只能守株待兔(tu)了。好在它們(men)不(bu)吃肉(rou),就吃植物(wu),而(er)它們(men)住的(de)地(di)方(fang),當時(shi)還不(bu)是沙漠,而(er)是海濱(bin)。這(zhe)(zhe)里漲潮時(shi)是海,退潮時(shi)是陸,海水是咸的(de),一般陸生(sheng)植物(wu)不(bu)能在這(zhe)(zhe)里生(sheng)長,但紅樹卻喜歡這(zhe)(zhe)種地(di)方(fang),加(jia)上(shang)那時(shi)氣(qi)候(hou)炎熱,樹木長得(de)很快,足供恐龍(long)在此(ci)飽餐。因此(ci),潮汐(xi)龍(long)也是第一種被證實生(sheng)活在紅樹林生(sheng)態環(huan)境的(de)恐龍(long)。