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one experiences a truly unusual feeling when realising that one is walking through spaces formed out of devonian marble an incredibly 350 - 380 million years old.
neobvyklý pocit zažijete, uvědomíte-li si, že právě procházíte prostorami vytvořenými v devonských mramorech, jejichž stáří je neuvěřitelných 350 - 380 milionů let.
during the devonian period also began the giant sea gränlsade between europe and north america to disappear, and when they both continents collided so had the pangea supercontinent began to form.
během období devonu také začal obří mořské gränlsade mezi evropou a severní amerikou zmizí, a když se oba kontinenty srazili tak musel pangea supercontinent začal tvořit.
prokop, r. j. (1987): the stratigraphical distribution of devonian crinoids in the barrandian area (czechoslovakia).
prokop, r. j. (1987): the stratigraphical distribution of devonian crinoids in the barrandian area (czechoslovakia).
- petr, v. (1994): first find of edrioasteroids (echinodermata) in the bohemian devonian (barrandian area).
- petr, v. (1994): first find of edrioasteroids (echinodermata) in the bohemian devonian (barrandian area).
- petr, v. (1986): revision of the superfamily melocrinitacea d'orbigny, 1852 (crinoidea, camerata) in silurian and devonian of bohemia. – sborník národního muzea, Øada b , 42 (3/4): 197-219. praha. pdf
- petr, v. (1986): revision of the superfamily melocrinitacea d'orbigny, 1852 (crinoidea, camerata) in silurian and devonian of bohemia. – sborník národního muzea, Řada b , 42 (3/4): 197-219. praha. issn 0036-5343