{"id":"https://openalex.org/W613198642","doi":null,"title":"Mesozoic differentiation, multituberculates, monotremes, early therians, and marsupials","display_name":"Mesozoic differentiation, multituberculates, monotremes, early therians, and marsupials","publication_year":1993,"publication_date":"1993-01-01","ids":{"openalex":"https://openalex.org/W613198642","mag":"613198642"},"language":"en","primary_location":{"id":"mag:613198642","doi":null,"is_oa":false,"landing_page_url":"http://ci.nii.ac.jp/ncid/BA21373881","pdf_url":null,"source":{"id":"https://openalex.org/S4306463937","display_name":"Springer eBooks","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"ebook platform"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"Springer eBooks","raw_type":null},"volume":null,"type":"book","is_traditional":true,"indexed_in":[],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5083367429","display_name":"Frederick S. Szalay","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Frederick S. Szalay","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5088035125","display_name":"Michael J. Novacek","orcid":"https://orcid.org/0000-0003-2505-8615","observed_orcids":["https://orcid.org/0000-0003-2505-8615"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Michael J. Novacek","raw_affiliation_strings":[],"raw_orcid":"https://orcid.org/0000-0003-2505-8615","affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5110079017","display_name":"Malcolm C. McKenna","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Malcolm C. McKenna","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":3.3133,"has_fulltext":false,"cited_by_count":101,"citation_normalized_percentile":{"value":0.93939394,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":92,"max":98},"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/T11354","display_name":"Evolution and Paleontology Studies","score":0.9951000213623047,"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/T11354","display_name":"Evolution and Paleontology Studies","score":0.9951000213623047,"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":0.003700000001117587,"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/T10421","display_name":"Pleistocene-Era Hominins and Archaeology","score":0.0003000000142492354,"subfield":{"id":"https://openalex.org/subfields/3314","display_name":"Anthropology"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/mesozoic","display_name":"Mesozoic","score":0.6769999861717224},{"id":"https://openalex.org/keywords/multituberculates","display_name":"multituberculates","score":0.8640000224113464},{"id":"https://openalex.org/keywords/monotremes","display_name":"monotremes","score":0.9980000257492065},{"id":"https://openalex.org/keywords/marsupials","display_name":"marsupials","score":0.9850000143051147},{"id":"https://openalex.org/keywords/mammalian-evolution","display_name":"mammalian evolution","score":0.8109999895095825},{"id":"https://openalex.org/keywords/mammal-diversification","display_name":"mammal diversification","score":0.5170000195503235},{"id":"https://openalex.org/keywords/mesozoic-mammals","display_name":"Mesozoic mammals","score":0.5410000085830688}],"concepts":[{"id":"https://openalex.org/C142876473","wikidata":"https://www.wikidata.org/wiki/Q7234132","display_name":"Postcrania","level":3,"score":0.7975771427154541},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.7257105112075806},{"id":"https://openalex.org/C37291498","wikidata":"https://www.wikidata.org/wiki/Q193603","display_name":"Ontogeny","level":2,"score":0.6815688610076904},{"id":"https://openalex.org/C78458016","wikidata":"https://www.wikidata.org/wiki/Q840400","display_name":"Evolutionary biology","level":1,"score":0.6405646800994873},{"id":"https://openalex.org/C499950583","wikidata":"https://www.wikidata.org/wiki/Q183252","display_name":"Morphology (biology)","level":2,"score":0.5620060563087463},{"id":"https://openalex.org/C202783661","wikidata":"https://www.wikidata.org/wiki/Q83222","display_name":"Mesozoic","level":3,"score":0.5431631207466125},{"id":"https://openalex.org/C2776110070","wikidata":"https://www.wikidata.org/wiki/Q2455930","display_name":"Fossil Record","level":2,"score":0.5215782523155212},{"id":"https://openalex.org/C139690037","wikidata":"https://www.wikidata.org/wiki/Q785301","display_name":"Evolution of mammals","level":3,"score":0.42793431878089905},{"id":"https://openalex.org/C90856448","wikidata":"https://www.wikidata.org/wiki/Q431","display_name":"Zoology","level":1,"score":0.3684729337692261},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.2615581750869751},{"id":"https://openalex.org/C104317684","wikidata":"https://www.wikidata.org/wiki/Q7187","display_name":"Gene","level":2,"score":0.06829231977462769},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0},{"id":"https://openalex.org/C71640776","wikidata":"https://www.wikidata.org/wiki/Q16521","display_name":"Taxon","level":2,"score":0.0},{"id":"https://openalex.org/C54355233","wikidata":"https://www.wikidata.org/wiki/Q7162","display_name":"Genetics","level":1,"score":0.0},{"id":"https://openalex.org/C109007969","wikidata":"https://www.wikidata.org/wiki/Q749565","display_name":"Structural basin","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"mag:613198642","doi":null,"is_oa":false,"landing_page_url":"http://ci.nii.ac.jp/ncid/BA21373881","pdf_url":null,"source":{"id":"https://openalex.org/S4306463937","display_name":"Springer eBooks","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"ebook platform"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"Springer eBooks","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2025944572","https://openalex.org/W2321245954","https://openalex.org/W2334841236","https://openalex.org/W7096911206","https://openalex.org/W112338864","https://openalex.org/W7019265996","https://openalex.org/W4231026882","https://openalex.org/W4239980530","https://openalex.org/W4234399371","https://openalex.org/W2481256977"],"abstract_inverted_index":null,"counts_by_year":[{"year":2021,"cited_by_count":2},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":2},{"year":2017,"cited_by_count":3},{"year":2016,"cited_by_count":4},{"year":2015,"cited_by_count":5},{"year":2014,"cited_by_count":4},{"year":2013,"cited_by_count":5},{"year":2012,"cited_by_count":3}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}