{"id":"https://openalex.org/W146602040","doi":null,"title":"Early Cambrian Problematic Lophotrochozoans and Dilemmas of Scleritome Reconstructions","display_name":"Early Cambrian Problematic Lophotrochozoans and Dilemmas of Scleritome Reconstructions","publication_year":2012,"publication_date":"2012-01-01","ids":{"openalex":"https://openalex.org/W146602040","mag":"146602040"},"language":"en","primary_location":{"id":"pmh:oai:DiVA.org:uu-180195","doi":null,"is_oa":true,"landing_page_url":"http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-180195","pdf_url":null,"source":{"id":"https://openalex.org/S4306402042","display_name":"Uppsala University Publications (Uppsala University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I123387679","host_organization_name":"Uppsala University","host_organization_lineage":["https://openalex.org/I123387679"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/doctoralThesis"},"volume":null,"type":"dissertation","is_traditional":true,"indexed_in":[],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-180195","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5027877374","display_name":"Cecilia M Larsson","orcid":"https://orcid.org/0000-0002-7676-3659","observed_orcids":["https://orcid.org/0000-0002-7676-3659"]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Cecilia M Larsson","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":["https://openalex.org/A5027877374"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10109","display_name":"Paleontology and Stratigraphy of Fossils","score":0.6439999938011169,"subfield":{"id":"https://openalex.org/subfields/1911","display_name":"Paleontology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10109","display_name":"Paleontology and Stratigraphy of Fossils","score":0.6439999938011169,"subfield":{"id":"https://openalex.org/subfields/1911","display_name":"Paleontology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10955","display_name":"Paleontology and Evolutionary Biology","score":0.2985999882221222,"subfield":{"id":"https://openalex.org/subfields/1911","display_name":"Paleontology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11354","display_name":"Evolution and Paleontology Studies","score":0.04100000113248825,"subfield":{"id":"https://openalex.org/subfields/1911","display_name":"Paleontology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/lophotrochozoa","display_name":"Lophotrochozoa","score":0.8669999837875366},{"id":"https://openalex.org/keywords/early-cambrian","display_name":"Lower Cambrian","score":0.6240000128746033},{"id":"https://openalex.org/keywords/phylogenetic-affinities","display_name":"phylogenetic relatedness","score":0.5740000009536743}],"concepts":[{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.5709348917007446},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.5386528372764587},{"id":"https://openalex.org/C2781052500","wikidata":"https://www.wikidata.org/wiki/Q2230313","display_name":"Shell (structure)","level":2,"score":0.5010232925415039},{"id":"https://openalex.org/C499950583","wikidata":"https://www.wikidata.org/wiki/Q183252","display_name":"Morphology (biology)","level":2,"score":0.49533525109291077},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.3860609233379364},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0532267689704895},{"id":"https://openalex.org/C147176958","wikidata":"https://www.wikidata.org/wiki/Q77590","display_name":"Civil engineering","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:DiVA.org:uu-180195","doi":null,"is_oa":true,"landing_page_url":"http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-180195","pdf_url":null,"source":{"id":"https://openalex.org/S4306402042","display_name":"Uppsala University Publications (Uppsala University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I123387679","host_organization_name":"Uppsala University","host_organization_lineage":["https://openalex.org/I123387679"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/doctoralThesis"},{"id":"mag:146602040","doi":null,"is_oa":false,"landing_page_url":"http://www.diva-portal.org/smash/record.jsf?pid=diva2:548711","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null}],"best_oa_location":{"id":"pmh:oai:DiVA.org:uu-180195","doi":null,"is_oa":true,"landing_page_url":"http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-180195","pdf_url":null,"source":{"id":"https://openalex.org/S4306402042","display_name":"Uppsala University Publications (Uppsala University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I123387679","host_organization_name":"Uppsala University","host_organization_lineage":["https://openalex.org/I123387679"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/doctoralThesis"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":82,"referenced_works":["https://openalex.org/W71318276","https://openalex.org/W595366089","https://openalex.org/W643269085","https://openalex.org/W1480934590","https://openalex.org/W1504869220","https://openalex.org/W1522980556","https://openalex.org/W1529107977","https://openalex.org/W1541140140","https://openalex.org/W1551883976","https://openalex.org/W1562948698","https://openalex.org/W1573076930","https://openalex.org/W1625965622","https://openalex.org/W1651701954","https://openalex.org/W1893704286","https://openalex.org/W1966154910","https://openalex.org/W1967576163","https://openalex.org/W1968148086","https://openalex.org/W1980021432","https://openalex.org/W1984014932","https://openalex.org/W1985565047","https://openalex.org/W1994160943","https://openalex.org/W1997595772","https://openalex.org/W2001043874","https://openalex.org/W2001586405","https://openalex.org/W2003347459","https://openalex.org/W2003878032","https://openalex.org/W2018500283","https://openalex.org/W2024263669","https://openalex.org/W2025438143","https://openalex.org/W2028013606","https://openalex.org/W2031748285","https://openalex.org/W2033087961","https://openalex.org/W2034839449","https://openalex.org/W2036849174","https://openalex.org/W2036975884","https://openalex.org/W2067982333","https://openalex.org/W2069297100","https://openalex.org/W2071548047","https://openalex.org/W2075969208","https://openalex.org/W2078956188","https://openalex.org/W2084927468","https://openalex.org/W2088172244","https://openalex.org/W2089833092","https://openalex.org/W2092008995","https://openalex.org/W2099210656","https://openalex.org/W2108438564","https://openalex.org/W2112768399","https://openalex.org/W2114395497","https://openalex.org/W2117167674","https://openalex.org/W2118020465","https://openalex.org/W2118715042","https://openalex.org/W2119763263","https://openalex.org/W2122914980","https://openalex.org/W2126535974","https://openalex.org/W2127078918","https://openalex.org/W2127465210","https://openalex.org/W2132969078","https://openalex.org/W2137082536","https://openalex.org/W2138685112","https://openalex.org/W2143380472","https://openalex.org/W2143593009","https://openalex.org/W2144308253","https://openalex.org/W2144647966","https://openalex.org/W2147043002","https://openalex.org/W2148377177","https://openalex.org/W2148437210","https://openalex.org/W2150012460","https://openalex.org/W2164270684","https://openalex.org/W2164367600","https://openalex.org/W2177577900","https://openalex.org/W2187542343","https://openalex.org/W2191005397","https://openalex.org/W2287475430","https://openalex.org/W2332907031","https://openalex.org/W2342521350","https://openalex.org/W2409548894","https://openalex.org/W2487555070","https://openalex.org/W2586923183","https://openalex.org/W2600183749","https://openalex.org/W2731277076","https://openalex.org/W2731426887","https://openalex.org/W2797434816"],"related_works":["https://openalex.org/W1598161819","https://openalex.org/W4297373410","https://openalex.org/W2164270684","https://openalex.org/W2767785683","https://openalex.org/W4389612647","https://openalex.org/W7160873654","https://openalex.org/W4378417065","https://openalex.org/W4309005196","https://openalex.org/W562837256","https://openalex.org/W186846507"],"abstract_inverted_index":{"The":[0,235,275,337],"emergence":[1],"and":[2,24,62,68,116,173,207,228,261,268,283,292,307,315,324],"radiation":[3],"of":[4,26,75,82,96,103,120,142,180,195,218,232,238,302],"metazoan":[5,97],"body":[6],"plans":[7],"around":[8],"the":[9,22,49,80,83,93,117,121,125,143,178,184,192,216,229,233,239,284,303,344,348],"Precambrian/Cambrian":[10],"boundary,":[11],"some":[12,167,243],"500-600":[13],"million":[14],"years":[15],"ago,":[16],"seems":[17],"to":[18,131,139,160,209],"be":[19,129,140],"concordant":[20],"with":[21,166,272,312,333,340],"appearance":[23],"diversification":[25],"preservable":[27],"hard":[28,58,130],"parts.":[29],"Several":[30],"Precambrian":[31],"soft-bodied,":[32],"multicellular":[33],"organisms":[34,105],"most":[35,69],"likely":[36],"represent":[37],"stem-group":[38,322],"bilaterians,":[39],"but":[40,215],"their":[41,147,265,269],"fossil":[42,51,61],"record":[43,52],"is":[44,53,318],"rather":[45],"sparse.":[46],"In":[47,183],"contrast,":[48],"Cambrian":[50,171,194,252],"comparably":[54],"rich":[55],"\u2013":[56,67,258,264],"comprising":[57],"part,":[59,186],"trace":[60],"delicate":[63],"soft":[64],"tissue":[65],"preservation":[66],"animal":[70],"phyla":[71],"that":[72],"we":[73],"know":[74],"today":[76],"had":[77],"evolved":[78],"by":[79],"end":[81],"Cambrian.":[84],"Consequently,":[85],"this":[86,107,151],"time":[87],"represents":[88],"an":[89],"important":[90],"period":[91,108],"in":[92,111,250,255,309,343],"early":[94,170],"evolution":[95],"life":[98],"forms.":[99],"Most":[100],"skeletal":[101,123],"remnants":[102],"invertebrate":[104],"from":[106,191,278],"are":[109,157,198,213,289],"preserved":[110],"incomplete,":[112],"disarticulated":[113,188],"sclerite":[114],"assemblages,":[115],"true":[118],"architecture":[119,267],"original":[122,230],"structure,":[124],"scleritome,":[126],"may":[127],"therefore":[128],"discern.":[132],"Many":[133],"scleritomous":[134,169,246],"taxa":[135,156,212],"have":[136],"been":[137],"suggested":[138],"members":[141],"lophotrochozoan":[144],"clade,":[145],"while":[146],"exact":[148],"position":[149],"within":[150],"group":[152],"remains":[153],"unclear.":[154],"Such":[155],"often":[158],"referred":[159],"as":[161,174,200,320,326],"Problematica.":[162],"This":[163],"thesis":[164,240],"deals":[165],"problematic":[168],"lophotrochozoans,":[172],"such":[175],"also":[176,290],"addresses":[177],"dilemmas":[179],"scleritome":[181,204,266],"reconstructions.":[182],"first":[185],"completely":[187],"calcareous":[189],"sclerites":[190],"lower":[193,251],"North":[196],"Greenland":[197],"described":[199,291,299],"Trachyplax":[201],"arctica.":[202],"Hypothetical":[203],"reconstruction":[205],"alternatives":[206],"comparisons":[208],"other":[210,236],"scleritome-bearing":[211],"discussed,":[214],"lack":[217],"articulated":[219,296],"material":[220],"obscures":[221],"any":[222],"satisfactory":[223],"conclusions":[224],"regarding":[225],"phylogenetic":[226,270],"affinities":[227],"morphology":[231],"organism.":[234],"part":[237],"focuses":[241],"on":[242,295],"minute,":[244],"organophosphatic":[245],"metazoans,":[247],"tommotiids,":[248],"found":[249],"limestone":[253],"successions":[254],"South":[256,279],"Australia":[257],"Paterimitra":[259,317,341],"pyramidalis":[260],"Kulparina":[262],"rostrata":[263],"relationship":[271],"paterinid":[273],"brachiopods.":[274],"oldest":[276],"brachiopod":[277,323],"Australia,":[280],"Askepasma":[281,287],"saproconcha,":[282],"slightly":[285,349],"younger":[286],"toddense":[288],"discussed.":[293],"Based":[294],"specimens,":[297],"recently":[298],"partial":[300],"scleritomes":[301],"tommotiid":[304],"Eccentrotheca":[305,314],"helenia":[306],"similarities":[308,339],"shell":[310],"ultrastructure":[311],"both":[313],"Askepasma,":[316],"interpreted":[319],"a":[321,327,334],"reconstructed":[325],"bilaterally":[328],"symmetrical,":[329],"sessile,":[330],"filter":[331],"feeder":[332],"tubular/conical":[335],"scleritome.":[336],"morphological":[338],"point":[342],"same":[345],"direction":[346],"for":[347],"older":[350],"Kulparina.":[351]},"counts_by_year":[],"updated_date":"2026-11-06T12:05:46.655746","created_date":"2016-06-24T00:00:00"}