Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W3082875217', 'doi': 'https://doi.org/10.1016/j.revpalbo.2020.104310', 'title': 'Reinvestigation of the marattialean Zhutheca densata (Gu et Zhi) Liu, Li et Hilton from the Lopingian of Southwest China, and its evolutionary implications', 'display_name': 'Reinvestigation of the marattialean Zhutheca densata (Gu et Zhi) Liu, Li et Hilton from the Lopingian of Southwest China, and its evolutionary implications', 'publication_year': 2020, 'publication_date': '2020-08-29', 'ids': {'openalex': 'https://openalex.org/W3082875217', 'doi': 'https://doi.org/10.1016/j.revpalbo.2020.104310', 'mag': '3082875217'}, 'language': 'en', 'primary_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1016/j.revpalbo.2020.104310', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S43762691', 'display_name': 'Review of Palaeobotany and Palynology', 'issn_l': '0034-6667', 'issn': ['0034-6667', '1879-0615'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320990', 'host_organization_name': 'Elsevier BV', 'host_organization_lineage': ['https://openalex.org/P4310320990'], 'host_organization_lineage_names': ['Elsevier BV'], 'type': 'journal'}, 'license': 'cc-by-nc-nd', 'license_id': 'https://openalex.org/licenses/cc-by-nc-nd', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref'], 'open_access': {'is_oa': True, 'oa_status': 'hybrid', 'oa_url': 'https://doi.org/10.1016/j.revpalbo.2020.104310', 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5101784698', 'display_name': 'Yun Guo', 'orcid': 'https://orcid.org/0000-0003-4677-3992'}, 'institutions': [{'id': 'https://openalex.org/I189210763', 'display_name': 'Yunnan University', 'ror': 'https://ror.org/0040axw97', 'country_code': 'CN', 'type': 'education', 'lineage': ['https://openalex.org/I189210763']}], 'countries': ['CN'], 'is_corresponding': False, 'raw_author_name': 'Yun Guo', 'raw_affiliation_strings': ['Institute of Palaeontology, Yunnan Key Laboratory for Palaeobiology, MEC International Joint Laboratory for Palaeobiology and Palaeoenvironment, Yunnan Key Laboratory of Earth System Science, Yunnan University, Kunming 650500, China'], 'affiliations': [{'raw_affiliation_string': 'Institute of Palaeontology, Yunnan Key Laboratory for Palaeobiology, MEC International Joint Laboratory for Palaeobiology and Palaeoenvironment, Yunnan Key Laboratory of Earth System Science, Yunnan University, Kunming 650500, China', 'institution_ids': ['https://openalex.org/I189210763']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5101520909', 'display_name': 'Yu Zhou', 'orcid': 'https://orcid.org/0000-0001-9331-9480'}, 'institutions': [{'id': 'https://openalex.org/I189210763', 'display_name': 'Yunnan University', 'ror': 'https://ror.org/0040axw97', 'country_code': 'CN', 'type': 'education', 'lineage': ['https://openalex.org/I189210763']}], 'countries': ['CN'], 'is_corresponding': False, 'raw_author_name': 'Yu Zhou', 'raw_affiliation_strings': ['Institute of Palaeontology, Yunnan Key Laboratory for Palaeobiology, MEC International Joint Laboratory for Palaeobiology and Palaeoenvironment, Yunnan Key Laboratory of Earth System Science, Yunnan University, Kunming 650500, China'], 'affiliations': [{'raw_affiliation_string': 'Institute of Palaeontology, Yunnan Key Laboratory for Palaeobiology, MEC International Joint Laboratory for Palaeobiology and Palaeoenvironment, Yunnan Key Laboratory of Earth System Science, Yunnan University, Kunming 650500, China', 'institution_ids': ['https://openalex.org/I189210763']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5066477300', 'display_name': 'Josef Pšenička', 'orcid': 'https://orcid.org/0000-0001-9240-9206'}, 'institutions': [{'id': 'https://openalex.org/I2800018999', 'display_name': 'East Bohemian Museum', 'ror': 'https://ror.org/01x1xh678', 'country_code': 'CZ', 'type': 'archive', 'lineage': ['https://openalex.org/I2800018999']}], 'countries': ['CZ'], 'is_corresponding': False, 'raw_author_name': 'Josef Pšenička', 'raw_affiliation_strings': ['Centre of Palaeobiodiversity, West Bohemian Museum in Plzeň, Kopeckého Sady 2, Plzeň 30100, Czech Republic'], 'affiliations': [{'raw_affiliation_string': 'Centre of Palaeobiodiversity, West Bohemian Museum in Plzeň, Kopeckého Sady 2, Plzeň 30100, Czech Republic', 'institution_ids': ['https://openalex.org/I2800018999']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5016646393', 'display_name': 'Jiřı́ Bek', 'orcid': 'https://orcid.org/0000-0001-5526-3922'}, 'institutions': [{'id': 'https://openalex.org/I202391551', 'display_name': 'Czech Academy of Sciences', 'ror': 'https://ror.org/053avzc18', 'country_code': 'CZ', 'type': 'government', 'lineage': ['https://openalex.org/I202391551']}, {'id': 'https://openalex.org/I4210141937', 'display_name': 'Czech Academy of Sciences, Institute of Geology', 'ror': 'https://ror.org/04wh80b80', 'country_code': 'CZ', 'type': 'facility', 'lineage': ['https://openalex.org/I202391551', 'https://openalex.org/I4210141937']}], 'countries': ['CZ'], 'is_corresponding': False, 'raw_author_name': 'Jiří Bek', 'raw_affiliation_strings': ['Institute of Geology v.v.i., Academy of Sciences of the Czech Republic, Rozvojová 269, 16500 Prague 6, Czech Republic'], 'affiliations': [{'raw_affiliation_string': 'Institute of Geology v.v.i., Academy of Sciences of the Czech Republic, Rozvojová 269, 16500 Prague 6, Czech Republic', 'institution_ids': ['https://openalex.org/I202391551', 'https://openalex.org/I4210141937']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5069579408', 'display_name': 'Shiling Yang', 'orcid': 'https://orcid.org/0000-0002-8103-1276'}, 'institutions': [{'id': 'https://openalex.org/I4210165038', 'display_name': 'University of Chinese Academy of Sciences', 'ror': 'https://ror.org/05qbk4x57', 'country_code': 'CN', 'type': 'education', 'lineage': ['https://openalex.org/I19820366', 'https://openalex.org/I4210165038']}, {'id': 'https://openalex.org/I4210126061', 'display_name': 'Institute of Geology and Geophysics', 'ror': 'https://ror.org/030vmwa78', 'country_code': 'CN', 'type': 'facility', 'lineage': ['https://openalex.org/I19820366', 'https://openalex.org/I4210126061']}, {'id': 'https://openalex.org/I19820366', 'display_name': 'Chinese Academy of Sciences', 'ror': 'https://ror.org/034t30j35', 'country_code': 'CN', 'type': 'government', 'lineage': ['https://openalex.org/I19820366']}], 'countries': ['CN'], 'is_corresponding': False, 'raw_author_name': 'Shi-Ling Yang', 'raw_affiliation_strings': ['CAS Center for Excellence in Life and Paleoenvironment, Beijing 100044, China', 'College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China', 'Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China'], 'affiliations': [{'raw_affiliation_string': 'College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China', 'institution_ids': ['https://openalex.org/I4210165038']}, {'raw_affiliation_string': 'Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China', 'institution_ids': ['https://openalex.org/I4210126061', 'https://openalex.org/I19820366']}, {'raw_affiliation_string': 'CAS Center for Excellence in Life and Paleoenvironment, Beijing 100044, China', 'institution_ids': []}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5031601214', 'display_name': 'Zhuo Feng', 'orcid': 'https://orcid.org/0000-0001-9635-1144'}, 'institutions': [{'id': 'https://openalex.org/I189210763', 'display_name': 'Yunnan University', 'ror': 'https://ror.org/0040axw97', 'country_code': 'CN', 'type': 'education', 'lineage': ['https://openalex.org/I189210763']}, {'id': 'https://openalex.org/I2802497816', 'display_name': 'Chinese Academy of Geological Sciences', 'ror': 'https://ror.org/02gp4e279', 'country_code': 'CN', 'type': 'facility', 'lineage': ['https://openalex.org/I2802497816']}], 'countries': ['CN'], 'is_corresponding': True, 'raw_author_name': 'Zhuo Feng', 'raw_affiliation_strings': ['Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China', 'Institute of Palaeontology, Yunnan Key Laboratory for Palaeobiology, MEC International Joint Laboratory for Palaeobiology and Palaeoenvironment, Yunnan Key Laboratory of Earth System Science, Yunnan University, Kunming 650500, China'], 'affiliations': [{'raw_affiliation_string': 'Institute of Palaeontology, Yunnan Key Laboratory for Palaeobiology, MEC International Joint Laboratory for Palaeobiology and Palaeoenvironment, Yunnan Key Laboratory of Earth System Science, Yunnan University, Kunming 650500, China', 'institution_ids': ['https://openalex.org/I189210763']}, {'raw_affiliation_string': 'Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China', 'institution_ids': ['https://openalex.org/I2802497816']}]}], 'institution_assertions': [], 'countries_distinct_count': 2, 'institutions_distinct_count': 8, 'corresponding_author_ids': ['https://openalex.org/A5031601214'], 'corresponding_institution_ids': ['https://openalex.org/I189210763', 'https://openalex.org/I2802497816'], 'apc_list': {'value': 3080, 'currency': 'USD', 'value_usd': 3080, 'provenance': 'doaj'}, 'apc_paid': {'value': 3080, 'currency': 'USD', 'value_usd': 3080, 'provenance': 'doaj'}, 'fwci': 1.117, 'has_fulltext': False, 'cited_by_count': 8, 'citation_normalized_percentile': {'value': 0.840691, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 84, 'max': 85}, 'biblio': {'volume': '282', 'issue': None, 'first_page': '104310', 'last_page': '104310'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10385', 'display_name': 'Plant Diversity and Evolution', 'score': 0.9996, 'subfield': {'id': 'https://openalex.org/subfields/1105', 'display_name': 'Ecology, Evolution, Behavior and Systematics'}, 'field': {'id': 'https://openalex.org/fields/11', 'display_name': 'Agricultural and Biological Sciences'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, 'topics': [{'id': 'https://openalex.org/T10385', 'display_name': 'Plant Diversity and Evolution', 'score': 0.9996, 'subfield': {'id': 'https://openalex.org/subfields/1105', 'display_name': 'Ecology, Evolution, Behavior and Systematics'}, 'field': {'id': 'https://openalex.org/fields/11', 'display_name': 'Agricultural and Biological Sciences'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, {'id': 'https://openalex.org/T14049', 'display_name': 'Plant and Fungal Species Descriptions', 'score': 0.9988, 'subfield': {'id': 'https://openalex.org/subfields/1312', 'display_name': 'Molecular Biology'}, 'field': {'id': 'https://openalex.org/fields/13', 'display_name': 'Biochemistry, Genetics and Molecular Biology'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, {'id': 'https://openalex.org/T12359', 'display_name': 'Fern and Epiphyte Biology', 'score': 0.9967, 'subfield': {'id': 'https://openalex.org/subfields/1105', 'display_name': 'Ecology, Evolution, Behavior and Systematics'}, 'field': {'id': 'https://openalex.org/fields/11', 'display_name': 'Agricultural and Biological Sciences'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/megaspore', 'display_name': 'Megaspore', 'score': 0.7401923}, {'id': 'https://openalex.org/keywords/paleobotany', 'display_name': 'Paleobotany', 'score': 0.45924333}], 'concepts': [{'id': 'https://openalex.org/C83365034', 'wikidata': 'https://www.wikidata.org/wiki/Q76402', 'display_name': 'Permian', 'level': 3, 'score': 0.91976273}, {'id': 'https://openalex.org/C2779650180', 'wikidata': 'https://www.wikidata.org/wiki/Q373772', 'display_name': 'Pennsylvanian', 'level': 3, 'score': 0.91417325}, {'id': 'https://openalex.org/C166131982', 'wikidata': 'https://www.wikidata.org/wiki/Q2330966', 'display_name': 'Megaspore', 'level': 4, 'score': 0.7401923}, {'id': 'https://openalex.org/C13106087', 'wikidata': 'https://www.wikidata.org/wiki/Q75507', 'display_name': 'Paleozoic', 'level': 2, 'score': 0.73396444}, {'id': 'https://openalex.org/C128905523', 'wikidata': 'https://www.wikidata.org/wiki/Q4832012', 'display_name': 'Sporangium', 'level': 3, 'score': 0.72908956}, {'id': 'https://openalex.org/C151730666', 'wikidata': 'https://www.wikidata.org/wiki/Q7205', 'display_name': 'Paleontology', 'level': 1, 'score': 0.63019145}, {'id': 'https://openalex.org/C2776985847', 'wikidata': 'https://www.wikidata.org/wiki/Q80005', 'display_name': 'Fern', 'level': 2, 'score': 0.5677845}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.5180545}, {'id': 'https://openalex.org/C7407677', 'wikidata': 'https://www.wikidata.org/wiki/Q192694', 'display_name': 'Paleobotany', 'level': 4, 'score': 0.45924333}, {'id': 'https://openalex.org/C59822182', 'wikidata': 'https://www.wikidata.org/wiki/Q441', 'display_name': 'Botany', 'level': 1, 'score': 0.42820865}, {'id': 'https://openalex.org/C78458016', 'wikidata': 'https://www.wikidata.org/wiki/Q840400', 'display_name': 'Evolutionary biology', 'level': 1, 'score': 0.40356916}, {'id': 'https://openalex.org/C127313418', 'wikidata': 'https://www.wikidata.org/wiki/Q1069', 'display_name': 'Geology', 'level': 0, 'score': 0.3391226}, {'id': 'https://openalex.org/C92324200', 'wikidata': 'https://www.wikidata.org/wiki/Q380138', 'display_name': 'Ovule', 'level': 3, 'score': 0.18849155}, {'id': 'https://openalex.org/C174618031', 'wikidata': 'https://www.wikidata.org/wiki/Q177332', 'display_name': 'Spore', 'level': 2, 'score': 0.11580792}, {'id': 'https://openalex.org/C2780618852', 'wikidata': 'https://www.wikidata.org/wiki/Q79932', 'display_name': 'Pollen', 'level': 2, 'score': 0.10483816}, {'id': 'https://openalex.org/C55493867', 'wikidata': 'https://www.wikidata.org/wiki/Q7094', 'display_name': 'Biochemistry', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C2778239642', 'wikidata': 'https://www.wikidata.org/wiki/Q3045481', 'display_name': 'Plant development', 'level': 3, 'score': 0.0}, {'id': 'https://openalex.org/C109007969', 'wikidata': 'https://www.wikidata.org/wiki/Q749565', 'display_name': 'Structural basin', 'level': 2, 'score': 0.0}, {'id': 'https://openalex.org/C104317684', 'wikidata': 'https://www.wikidata.org/wiki/Q7187', 'display_name': 'Gene', 'level': 2, 'score': 0.0}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': True, 'landing_page_url': 'https://doi.org/10.1016/j.revpalbo.2020.104310', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S43762691', 'display_name': 'Review of Palaeobotany and Palynology', 'issn_l': '0034-6667', 'issn': ['0034-6667', '1879-0615'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320990', 'host_organization_name': 'Elsevier BV', 'host_organization_lineage': ['https://openalex.org/P4310320990'], 'host_organization_lineage_names': ['Elsevier BV'], 'type': 'journal'}, 'license': 'cc-by-nc-nd', 'license_id': 'https://openalex.org/licenses/cc-by-nc-nd', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}], 'best_oa_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1016/j.revpalbo.2020.104310', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S43762691', 'display_name': 'Review of Palaeobotany and Palynology', 'issn_l': '0034-6667', 'issn': ['0034-6667', '1879-0615'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320990', 'host_organization_name': 'Elsevier BV', 'host_organization_lineage': ['https://openalex.org/P4310320990'], 'host_organization_lineage_names': ['Elsevier BV'], 'type': 'journal'}, 'license': 'cc-by-nc-nd', 'license_id': 'https://openalex.org/licenses/cc-by-nc-nd', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'sustainable_development_goals': [{'id': 'https://metadata.un.org/sdg/15', 'score': 0.64, 'display_name': 'Life on land'}], 'grants': [{'funder': 'https://openalex.org/F4320321001', 'funder_display_name': 'National Natural Science Foundation of China', 'award_id': '41603035'}, {'funder': 'https://openalex.org/F4320321001', 'funder_display_name': 'National Natural Science Foundation of China', 'award_id': 'U1702242'}, {'funder': 'https://openalex.org/F4320321001', 'funder_display_name': 'National Natural Science Foundation of China', 'award_id': '41762002'}, {'funder': 'https://openalex.org/F4320321006', 'funder_display_name': 'Grantová Agentura České Republiky', 'award_id': '19-06728S'}, {'funder': 'https://openalex.org/F4320321133', 'funder_display_name': 'Chinese Academy of Sciences', 'award_id': 'XDB26000000'}, {'funder': 'https://openalex.org/F4320322482', 'funder_display_name': 'Akademie Věd České Republiky', 'award_id': 'RVO67985831'}, {'funder': 'https://openalex.org/F4320325440', 'funder_display_name': 'Yunnan Provincial Science and Technology Department', 'award_id': '2019FJ010'}, {'funder': 'https://openalex.org/F4320334926', 'funder_display_name': 'China Geological Survey', 'award_id': 'DD20190022'}], 'datasets': [], 'versions': [], 'referenced_works_count': 70, 'referenced_works': ['https://openalex.org/W1548358237', 'https://openalex.org/W1569125502', 'https://openalex.org/W1790061026', 'https://openalex.org/W1921158499', 'https://openalex.org/W1930573109', 'https://openalex.org/W1968136576', 'https://openalex.org/W1973885160', 'https://openalex.org/W1987863637', 'https://openalex.org/W1988694647', 'https://openalex.org/W1989015050', 'https://openalex.org/W1991718588', 'https://openalex.org/W2004773014', 'https://openalex.org/W2004918033', 'https://openalex.org/W2006258805', 'https://openalex.org/W2009630300', 'https://openalex.org/W2010055703', 'https://openalex.org/W2015118033', 'https://openalex.org/W2017686277', 'https://openalex.org/W2019915057', 'https://openalex.org/W2024150327', 'https://openalex.org/W2029962424', 'https://openalex.org/W2030511968', 'https://openalex.org/W2035448524', 'https://openalex.org/W2036639072', 'https://openalex.org/W2040627115', 'https://openalex.org/W2042590534', 'https://openalex.org/W2049525037', 'https://openalex.org/W2054556839', 'https://openalex.org/W2056843220', 'https://openalex.org/W2057843019', 'https://openalex.org/W2058665390', 'https://openalex.org/W2060711160', 'https://openalex.org/W2062127704', 'https://openalex.org/W2065671796', 'https://openalex.org/W2078187087', 'https://openalex.org/W2087236139', 'https://openalex.org/W2088320539', 'https://openalex.org/W2088820434', 'https://openalex.org/W2090153454', 'https://openalex.org/W2091843112', 'https://openalex.org/W2094314332', 'https://openalex.org/W2137325396', 'https://openalex.org/W2149108923', 'https://openalex.org/W2159477292', 'https://openalex.org/W2174388637', 'https://openalex.org/W233545507', 'https://openalex.org/W2568789629', 'https://openalex.org/W2607070112', 'https://openalex.org/W2617823708', 'https://openalex.org/W2743810458', 'https://openalex.org/W2765768688', 'https://openalex.org/W2767375206', 'https://openalex.org/W2793299866', 'https://openalex.org/W2884297219', 'https://openalex.org/W2899199562', 'https://openalex.org/W2904624246', 'https://openalex.org/W2946413757', 'https://openalex.org/W2962786551', 'https://openalex.org/W2966381581', 'https://openalex.org/W2971363898', 'https://openalex.org/W2974483597', 'https://openalex.org/W3010949495', 'https://openalex.org/W3033561059', 'https://openalex.org/W3120414980', 'https://openalex.org/W3134937924', 'https://openalex.org/W4248690000', 'https://openalex.org/W4285719527', 'https://openalex.org/W4297812915', 'https://openalex.org/W641398428', 'https://openalex.org/W645771228'], 'related_works': ['https://openalex.org/W4297821273', 'https://openalex.org/W4285466416', 'https://openalex.org/W2236173791', 'https://openalex.org/W2125693590', 'https://openalex.org/W2080671473', 'https://openalex.org/W2057009879', 'https://openalex.org/W2054039637', 'https://openalex.org/W2047780366', 'https://openalex.org/W2042564552', 'https://openalex.org/W1989047528'], 'abstract_inverted_index': {'Marattialeans': [0], 'were': [1, 65], 'the': [2, 8, 15, 54, 75, 85, 104, 158, 190, 214], 'most': [3, 20], 'species-rich': [4], 'fern': [5], 'group': [6], 'in': [7, 14, 31, 58, 95, 113, 128, 149, 170, 175, 184, 200], 'Lopingian': [9, 55], '(late': [10], 'Permian)': [11], 'Cathaysian': [12], 'floras': [13], 'South': [16], 'China': [17], 'Block.': [18], 'However,': [19], 'previous': [21], 'studies': [22], 'on': [23, 27, 100, 141, 213], 'marattialean': [24, 80, 135], 'ferns': [25], 'focused': [26], 'their': [28, 33, 203], 'vegetative': [29], 'morphology;': [30], 'contrast,': [32, 176], 'reproductive': [34, 76, 136], 'biology': [35], 'has': [36], 'rarely': [37], 'been': [38], 'examined.': [39], 'New': [40], 'compression': [41], 'materials': [42], 'of': [43, 78, 84, 103, 123, 134, 145, 202, 216], 'Zhutheca': [44], 'densata': [45, 87], '(Gu': [46], 'et': [47, 51], 'Zhi)': [48], 'Liu,': [49], 'Li': [50], 'Hilton': [52], 'from': [53], 'Xuanwei': [56], 'Formation': [57], 'Qujing': [59], 'City,': [60], 'Yunnan': [61], 'Province,': [62], 'Southwest': [63], 'China,': [64], 'studied': [66], 'and': [67, 71, 125, 160, 173, 187, 205], 'provide': [68], 'additional': [69], 'micromorphological': [70], 'ultrastructural': [72], 'details': [73], 'about': [74], 'organs': [77, 83, 137], 'this': [79], 'plant.': [81], 'Reproductive': [82], 'Z.': [86], 'plant': [88], 'are': [89], 'characterized': [90], 'by': [91], 'radially': [92, 165], 'symmetrical': [93, 166, 180, 195], 'synangia': [94, 167, 181, 196], 'two': [96], 'or': [97], 'three': [98, 119], 'rows': [99], 'each': [101], 'side': [102], 'midvein,': [105], 'four': [106, 121], 'to': [107, 120], 'six': [108], 'exannulate': [109], 'sporangia': [110], 'laterally': [111], 'fused': [112], 'a': [114, 142], 'synangium,': [115], 'sporangial': [116], 'walls': [117], 'comprising': [118], 'layers': [122], 'cells,': [124], 'monolete': [126], 'Laevigatosporites/Latosporites-type': [127], 'situ': [129], 'spores.': [130], 'The': [131], 'spatiotemporal': [132], 'distribution': [133], 'was': [138], 'analyzed': [139], 'based': [140], 'thorough': [143], 'comparison': [144], '29': [146], 'genera': [147], 'recorded': [148], 'upper': [150], 'Paleozoic': [151], 'strata.': [152], 'Our': [153, 208], 'analysis': [154], 'indicated': [155], 'that,': [156], 'during': [157], 'Pennsylvanian': [159], 'Permian': [161], 'periods,': [162], 'marattialeans': [163, 177, 192], 'with': [164, 178, 193], 'notably': [168, 182], 'decreased': [169], 'both': [171, 185], 'diversification': [172, 186, 204], 'distribution;': [174], 'bilaterally': [179, 194], 'increased': [183], 'distribution.': [188, 207], 'After': [189], 'Lopingian,': [191], 'gradually': [197], 'became': [198], 'predominant': [199], 'terms': [201], 'geographic': [206], 'study': [209], 'sheds': [210], 'new': [211], 'light': [212], 'evolution': [215], 'marattialeans.': [217]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W3082875217', 'counts_by_year': [{'year': 2024, 'cited_by_count': 1}, {'year': 2023, 'cited_by_count': 3}, {'year': 2022, 'cited_by_count': 2}, {'year': 2021, 'cited_by_count': 2}], 'updated_date': '2024-12-24T06:54:06.219167', 'created_date': '2020-09-08'}