Izinhlanzi zangaphambi komlando

izinhlanzi zangaphambi komlando

Ngokwalokho okungase kubonakale ekuqaleni, izinhlanzi akuzona izilwane zesikhathi sakamuva, kodwa ubukhona bazo buneminyaka eyizigidi. Kulo mbhalo sizokhuluma ngezinye zalezi zilwane ezazabelana ngendawo nama-dinosaurs ngokwazo nezinye izidalwa zasendulo. Sibhekisa kulokho okuthiwa izinhlanzi zangaphambi komlando.

I-Dunkleosteus

I-Dunkleosteus ingeyomndeni wezinhlanzi ze-arthrodylar placoderm (kwakuyizinhlanzi zokuqala ezinomqolo ezinemihlathi). Kwakukhona esikhathini se-Devonia, cishe esikhathini esiphakathi kweminyaka eyizigidi ezingama-380-360.

Le nhlanzi yakudala ibinekhanda elivelele, elinezikhali ezinemihlathi emikhulu. Le mihlathi ibinamahlumela amazinyo abulalayo. Isimo esinje simenze waba ngesinye sezilwane zasolwandle ezibulala kakhulu futhi ezibulala kakhulu ezake zabonwa.

umlando wezinhlanzi zangaphambi komlando

Ngosayizi omkhulu, cishe amamitha ayishumi namathani angaphezu kwamathathu ngesisindo, wayibeka phambili eketini lokudla.

Izinsalela zokuqala zalesi sidalwa esihlaba umxhwele zatholwa yisazi sokuma komhlaba uJay Terrell ngo-1867 osebeni lweLake Iago Erie (e-Ohio). Lezi zinsalela zihambisana nendawo yogebhezi kanye nocwecwe lwethambo langemuva. Ngaphandle kokuthi amathambo amaningana ale nhlanzi atholakele kamuva, bekungekho kuze kube sekuqaleni kwekhulu lama-XNUMX lapho ukwakhiwa okuqondile nokunemba ngokwengeziwe kwe-morphology yangempela yalesi silwane kungenziwa.

I-Xiphactinus

Le nhlanzi ayidingi incwadi eyisembozo eyeqile ukuze iqonde indima yayo ngesikhathi ikhona, incazelo yegama layo ithi konke: "sword fin". Noma kunjalo, ngizozama ukukutshela konke ngaye.

Ukhakhayi lwenhlanzi lwangaphambi komlando

Le nhlanzi kwakungeyenhlangano ye-teleost fish eyayigcwalisa amanzi olwandle emuva eCretaceous. Ikhaya lalo eliqonde ngqo laliseningizimu naseningizimu-ntshonalanga ye-United States, kepha futhi laqamba nezinye izindawo eziseduze neCentral kanye neNingizimu Melika.

Kwakuyisilwane esinomzimba ohlangene, cishe amamitha angu-4,3 ubude, futhi singafinyelela kumamitha ayi-6. Isici sayo esikhulu kwakuyimisebe yamathambo eyaphuma kuyo yagcina ingeniswa emaphikweni. Lezi zinsimbi zamvumela ukuthi abhukude ngokukhulu ukushesha futhi afinyelele leyo minyakazo eqondile azobamba ngayo izisulu zakhe.

Kodwa izikhali zakhe ezinkulu zazisekhanda lakhe. Ikhanda eliyisicaba, ebelinemihlathi emikhulu neyesabekayo.

Futhi ukuthi iXiphactinus ibiyisilwane esidla izinhlamvu ngosonhlamvukazi. Kukholakala ukuthi isifiso sayo sokunganeliseki senza ukuthi ibe nezinhlobonhlobo zezilwane ezingaba yisisulu, okuholele ekutheni idle zonke izinhlobo zezilwane ezincane, kuze kufike ekudleni kwabantu. Ubufakazi bokugcina ukuthi izinsalela zitholakale zibeka izinsalela zezinhlobo ezincane ngaphakathi esiswini sabantu abadala.

Ekugcineni, yisho ngaye ukuthi kungahle kungabi yisilwane esihamba sodwa, kepha ukuthi kwafanisa impilo yamaqembu amancane nenani elincane lamakhophi.

I-Cretoxyrhina

ICretoxyrhina kungenzeka ukuthi yaba ngushaka wokuqala ukugcwala umhlaba. Wahlala ekugcineni kweCretaceous, cishe eminyakeni eyizigidi eziyi-100 edlule noma kunjalo. Ibizwe nge- "ginsu shark."

Lo shaka ungakhula aze afike amamitha ayi-7 ubude, usayizi ofana nalowo kashaka omkhulu omhlophe namuhla, ofana nawo ngokomzimba.

Ushaka wangaphambi komlando

Kwakuyisilwane esidlayo nesidlayo esiyisibonelo. Umhlathi wayo wawugcwele amazinyo amaningi abukhali ngommese afinyelela kumasentimitha ayi-7 ubude. La mazinyo akha imihlathi emibili: engenhla enamazinyo angama-34, kanti engezansi inamazinyo angama-36, emgqeni ngamunye ocacile.

Yondla cishe zonke izidalwa zasolwandle ezazihlala eduze kwayo, eyayiqothula ngokuluma kwayo okunamandla, okwakuthi ngokuluma okulula nangokujika kwentamo ikwazi ukusika noma imuphi umzimba. Akungabazeki ukuthi sasingesinye sezilwane ezazesatshwa kakhulu ngesikhathi saso, lapho sasihlwanyela khona ukwesaba lapho sasiyakhona.

Ama-squalicorax

Omunye woshaka bangaphambi komlando kwakuyiSqualicorax, efana neCretoxyrhina, waphila impilo yakhe ekugcineni kweCretaceous.

Ukubukeka kwayo kwangaphandle bekufana ncamashi noshaka wanamuhla, ikakhulukazi i-tiger shark. Yayicishe ibe ngamamitha ama-5 ubude, yize yayijwayele ukutholakala kubude obumaphakathi kwamamitha nje amabili. Ukuphakama kwakhe futhi kwakungekho ngaphezu kwamamitha ayi-2-2.5.

Yanikezwa ngamazinyo amaningi, eyayivumela ukuthi ithwale ukudla okunomsoco, ibe nokuziphatha okukhohlisayo ngezikhathi ezithile.

Kumele kuqashelwe ukuthi akuzona zonke izinhlanzi zangaphambi komlando ezagcina zingasekho, kepha kunezinhlobo ezithile ezaphikisana nokuhamba kwesikhathi futhi eziphakathi kwethu namuhla. Ngokulandelayo sizokwethula amanye amacala:

Ama-Mixinos

I-Hagfish noma i-hagfish itholakala ngaphakathi kweqembu de peces ama-agnath. Babizwa futhi de peces umthakathi noma ama-hyperotretos, futhi okwamanje cishe izinhlobo ezihlukene ezingama-60 zifakwe kukhathalogi.

Ziyizinhlanzi ezinemizimba evulekile embozwe ngento ebonakalayo. Abanayo imihlathi. Esikhundleni salokho zinezakhiwo ezimbili ezifana nezintambo futhi ezenza ngazo ukunyakaza kokuncela.

Imvamisa zondla i-viscera, zikwazi ukungena emzimbeni wezilwane eziphilayo ukuzishwabadela ngaphakathi, ngenxa yolimi lwazo olunemingcele. Bantula imizwa yokwamukela, futhi amehlo abo athuthukile kakhulu.

Ziphakathi kwezilwane zasendulo ezinomqolo yezinhlobonhlobo zezinto eziphilayo nezilwane zanamuhla.

I-Lancetfish

I-Lancetfish

Lapho ubheka i-Lancetfish akudingeki ube nolwazi oluningi ku-zoology ukuze wazi ukuthi le nhlanzi ivela kudala. Inokubukeka kwangaphambi komlando futhi okunolaka ngokweqiniso.

Into ecindezela kakhulu futhi evelele ngalesi silwane kungaba imihlathi yaso nokuthi siseyili emhlane waso, empeleni okungeyona nje kuphela into enkulu yasemuva. Ingalingana ngamamitha amabili ubude.

Kuyisilwane esidla inyama esidla izinhlanzi ezincane, ama-crustaceans, ama-cephalopods, njll.

I-Arowana

I-Arowana

Izinhlanzi ze-Arowana ziseqenjini lama-osteoglosides, izilwane ezazikhona ngesikhathi seJurassic. Lesi silwane sihlala ezindaweni zoMfula i-Amazon kanye nase-Afrika, e-Asia nase-Australia.

Ziyizilwane ezikhetheke kakhulu, ngoba ziyakwazi ukweqa zifike kumamitha amabili ngaphezulu kobuso bamanzi. Lomthamo usetshenziselwa ukubamba izinyoni noma ezinye izinhlobo zezilwane. Lokhu kumema ukuthi babahlukanise njengezilwane ezidlayo.


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  1. Ubhekele imininingwane: Miguel Ángel Gatón
  2. Inhloso yedatha: Lawula Ugaxekile, ukuphathwa kwamazwana.
  3. Ukusemthethweni: Imvume yakho
  4. Ukuxhumana kwemininingwane: Imininingwane ngeke idluliselwe kubantu besithathu ngaphandle kwesibopho esisemthethweni.
  5. Isitoreji sedatha: Idatabase ebanjwe yi-Occentus Networks (EU)
  6. Amalungelo: Nganoma yisiphi isikhathi ungakhawulela, uthole futhi ususe imininingwane yakho.