Glyptodontidae

Jak číst taxoboxGlyptodontidae
alternativní popis obrázku chybí
Vědecká klasifikace
Říšeživočichové (Animalia)
Kmenstrunatci (Chordata)
Podkmenobratlovci (Vertebrata)
Třídasavci (Mammalia)
Nadřádchudozubí (Xenarthra)
Řádpásovci (Cingulata)
ČeleďGlyptodontidae
Burmeister, 1879
Rody
Některá data mohou pocházet z datové položky.

Glyptodontidae je skupina vymřelých velkých savců z řádu pásovců. Vyvinuli se v Jižní Americe, ale když před třemi miliony let vznikla panamská šíje, některé druhy se během tzv. velké americké výměny rozšířily do Severní Ameriky. Hlavním rysem zástupců této skupiny bylo jejich opancéřované tělo podobné želvímu krunýři utvořené z kostní tkáně. Největší jedinci vážili až 2 tuny.

Glyptodontidi vyhynuli na konci poslední doby ledové spolu s dalšími zástupci megafauny, kupř. velkým pozemním lenochodem rodu Megatherium apod.

Jedním z nejnovějších objevů zástupců této čeledi je rod Parapropalaehoplophorus z And.

Tělesné brnění

Vědecká studie z roku 2018 ukazuje, že brnění glyptodontů bylo velmi sofistikovaným anatomickým prvkem, který měl vícero funkcí. Kromě ochrany tělních orgánů před útoky predátorů mohl sloužit například i při termoregulaci nebo vnitrodruhové signalizaci.[1] Jejich ocasní "palice" pak sloužila jako zbraň aktivní obrany před útočícími predátory.[2]

Odkazy

Reference

  1. Anton du Plessis, Chris Broeckhoven, Igor Yadroitsev, Ina Yadroitsava, Stephan Gerhard le Roux (2018). Analyzing nature's protective design: The glyptodont body armor. Journal of the Mechanical Behavior of Biomedical Materials 82: 218-223. doi: https://doi.org/10.1016/j.jmbbm.2018.03.037
  2. Victoria M. Arbour & Lindsay E. Zanno (2019). Tail Weaponry in Ankylosaurs and Glyptodonts: An Example of a Rare but Strongly Convergent Phenotype. The Anatomical Record. doi: https://doi.org/10.1002/ar.24093

V tomto článku byl použit překlad textu z článku Glyptodontidae na anglické Wikipedii.

Literatura

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