{"id":5005445,"date":"2006-07-17T16:51:24","date_gmt":"2006-07-17T14:51:24","guid":{"rendered":"https:\/\/criticalbiomass.blog.hu\/2006\/07\/17\/i_odontogriphus_omalus_i"},"modified":"2006-07-17T16:51:24","modified_gmt":"2006-07-17T14:51:24","slug":"i_odontogriphus_omalus_i","status":"publish","type":"post","link":"https:\/\/criticalbiomass.hu\/?p=5005445","title":{"rendered":"Odontogriphus omalus<\/i>"},"content":{"rendered":"

\n
\nA kanadai Burgess pal\u00e1b\u00f3l<\/a> el\u0151ker\u00fcl\u0151 \u00e1llatok mindig is leny\u0171g\u00f6zt\u00e9k a paleontol\u00f3gusokat. A k\u00f6z\u00e9p kambriumi fossz\u00edli\u00e1kban gazdag lel\u0151hely ugyanis m\u00e1r a kezdetek \u00f3ta ontotta mag\u00e1b\u00f3l a legelk\u00e9peszt\u0151bb form\u00e1j\u00fa organizmusok maradv\u00e1nyait, amelyek oszt\u00e1lyoz\u00e1sa nem egyszer komoly fejt\u00f6r\u00e9st okozott a kutat\u00f3knak.\n<\/p>\n

\nEzen, n\u00e9ha m\u00e1r-m\u00e1r sci-fi-be ill\u0151 formagazdags\u00e1g\u00fa fajok k\u00f6z\u00fcl is tal\u00e1n az egyik legenigmatikusabb az Odontogriphus omalus <\/em>volt, amelyet proto-gerinch\u00farosnak (Chordata), tapogat\u00f3snak (Lophophorata), soks\u00f6rt\u00e9j\u0171nek (Polychaeta), illetve puhatest\u0171nek (Mollusca) m\u00e1r egyar\u00e1nt n\u00e9ztek, de hovatartoz\u00e1s\u00e1r\u00f3l mindeddig nem alakult ki konszenzus.\n<\/p>\n

\nA Nature<\/em> mostani sz\u00e1m\u00e1ban megjelen\u0151 tanulm\u00e1ny azonban \u00fagy t\u0171nik v\u00e9gre v\u00e9gleg helyre teszi ezt a furcsa kis \u00e1llatk\u00e1t, \u00e9s a helye a Puhatest\u0171ek k\u00f6z\u00f6tt leszl\u00e9szen. A d\u00f6nt\u0151 nyom egy reszel\u0151nyelv (radula<\/a>) maradv\u00e1nya volt (hogy mik\u00e9nt is n\u00e9z ez ki egy mai csig\u00e1n\u00e1l, azt l\u00e1sd itt<\/a>), amely a csig\u00e1k \u00e9s k\u00f6zeli rokonaik egyik igen karakterisztikus jellemz\u0151je. Azaz a kb. 10 cm hossz\u00fa l\u00e9ny, nem m\u00e1s mint egy igencsak lapos meztelencsiga, amely a k\u00f6z\u00e9p-kambriumi tengerek aljzat\u00e1t bor\u00edt\u00f3 k\u00e9kalga telepeken lakom\u00e1zott – kicsit hasonl\u00f3an az akv\u00e1rium tiszt\u00edt\u00e1sra is haszn\u00e1lt jelenkori rokonaihoz.\n<\/p>\n

\n


\nCaron J-B, Scheltema A, Schander C, Rudkin D<\/strong> (2006) A soft-bodied mollusc with radula from the Middle Cambrian Burgess Shale. Nature<\/em> 442<\/strong>: 159-163.
\n<\/font><\/p>\n","protected":false},"excerpt":{"rendered":"

A kanadai Burgess pal\u00e1b\u00f3l el\u0151ker\u00fcl\u0151 \u00e1llatok mindig is leny\u0171g\u00f6zt\u00e9k a paleontol\u00f3gusokat. A k\u00f6z\u00e9p kambriumi fossz\u00edli\u00e1kban gazdag lel\u0151hely ugyanis m\u00e1r a kezdetek \u00f3ta ontotta mag\u00e1b\u00f3l a legelk\u00e9peszt\u0151bb form\u00e1j\u00fa organizmusok maradv\u00e1nyait, amelyek oszt\u00e1lyoz\u00e1sa nem egyszer komoly fejt\u00f6r\u00e9st okozott a kutat\u00f3knak. Ezen, n\u00e9ha … Egy kattint\u00e1s ide a folytat\u00e1shoz…. →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5005445","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=\/wp\/v2\/posts\/5005445","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5005445"}],"version-history":[{"count":0,"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=\/wp\/v2\/posts\/5005445\/revisions"}],"wp:attachment":[{"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5005445"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5005445"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5005445"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}