Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2057843019', 'doi': 'https://doi.org/10.1007/s00606-007-0638-7', 'title': 'Anatomically preserved marattialean plants from the Upper Permian of southwestern China: the trunk of Psaronius panxianensis sp. nov.', 'display_name': 'Anatomically preserved marattialean plants from the Upper Permian of southwestern China: the trunk of Psaronius panxianensis sp. nov.', 'publication_year': 2008, 'publication_date': '2008-03-24', 'ids': {'openalex': 'https://openalex.org/W2057843019', 'doi': 'https://doi.org/10.1007/s00606-007-0638-7', 'mag': '2057843019'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1007/s00606-007-0638-7', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S50870786', 'display_name': 'Plant Systematics and Evolution', 'issn_l': '0378-2697', 'issn': ['0378-2697', '1615-6110'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319900', 'host_organization_name': 'Springer Science+Business Media', 'host_organization_lineage': ['https://openalex.org/P4310319965', 'https://openalex.org/P4310319900'], 'host_organization_lineage_names': ['Springer Nature', 'Springer Science+Business Media'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref'], 'open_access': {'is_oa': False, 'oa_status': 'closed', 'oa_url': None, 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5101911269', 'display_name': 'Xuezhi He', 'orcid': 'https://orcid.org/0000-0001-8379-9820'}, 'institutions': [{'id': 'https://openalex.org/I4210158097', 'display_name': 'Institute of Botany', 'ror': 'https://ror.org/05hr3ch11', 'country_code': 'CN', 'type': 'facility', 'lineage': ['https://openalex.org/I19820366', 'https://openalex.org/I4210158097']}, {'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': 'X.-Y. He', 'raw_affiliation_strings': ["State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Xiangshan, Beijing, People's Republic of China"], 'affiliations': [{'raw_affiliation_string': "State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Xiangshan, Beijing, People's Republic of China", 'institution_ids': ['https://openalex.org/I4210158097', 'https://openalex.org/I19820366']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5020048569', 'display_name': 'S.-J. Wang', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210158097', 'display_name': 'Institute of Botany', 'ror': 'https://ror.org/05hr3ch11', 'country_code': 'CN', 'type': 'facility', 'lineage': ['https://openalex.org/I19820366', 'https://openalex.org/I4210158097']}, {'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': 'S.-J. Wang', 'raw_affiliation_strings': ["State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Xiangshan, Beijing, People's Republic of China"], 'affiliations': [{'raw_affiliation_string': "State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Xiangshan, Beijing, People's Republic of China", 'institution_ids': ['https://openalex.org/I4210158097', 'https://openalex.org/I19820366']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5026672731', 'display_name': 'Jason Hilton', 'orcid': 'https://orcid.org/0000-0003-0286-8236'}, 'institutions': [{'id': 'https://openalex.org/I79619799', 'display_name': 'University of Birmingham', 'ror': 'https://ror.org/03angcq70', 'country_code': 'GB', 'type': 'education', 'lineage': ['https://openalex.org/I79619799']}], 'countries': ['GB'], 'is_corresponding': True, 'raw_author_name': 'Jason Hilton', 'raw_affiliation_strings': ['School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK'], 'affiliations': [{'raw_affiliation_string': 'School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK', 'institution_ids': ['https://openalex.org/I79619799']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5089115488', 'display_name': 'Baolin Tian', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I25757504', 'display_name': 'China University of Mining and Technology', 'ror': 'https://ror.org/01xt2dr21', 'country_code': 'CN', 'type': 'education', 'lineage': ['https://openalex.org/I25757504']}], 'countries': ['CN'], 'is_corresponding': False, 'raw_author_name': 'B.-L. Tian', 'raw_affiliation_strings': ["Beijing Graduate School, China University of Mining and Technology, Beijing, People's Republic of China"], 'affiliations': [{'raw_affiliation_string': "Beijing Graduate School, China University of Mining and Technology, Beijing, People's Republic of China", 'institution_ids': ['https://openalex.org/I25757504']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5101520909', 'display_name': 'Yu Zhou', 'orcid': 'https://orcid.org/0000-0001-9331-9480'}, 'institutions': [{'id': 'https://openalex.org/I4210158097', 'display_name': 'Institute of Botany', 'ror': 'https://ror.org/05hr3ch11', 'country_code': 'CN', 'type': 'facility', 'lineage': ['https://openalex.org/I19820366', 'https://openalex.org/I4210158097']}, {'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': 'Y.-L. Zhou', 'raw_affiliation_strings': ["State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Xiangshan, Beijing, People's Republic of China"], 'affiliations': [{'raw_affiliation_string': "State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Xiangshan, Beijing, People's Republic of China", 'institution_ids': ['https://openalex.org/I4210158097', 'https://openalex.org/I19820366']}]}], 'institution_assertions': [], 'countries_distinct_count': 2, 'institutions_distinct_count': 4, 'corresponding_author_ids': ['https://openalex.org/A5026672731'], 'corresponding_institution_ids': ['https://openalex.org/I79619799'], 'apc_list': {'value': 2690, 'currency': 'EUR', 'value_usd': 3490, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 1.183, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 23, 'citation_normalized_percentile': {'value': 0.880141, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 89, 'max': 90}, 'biblio': {'volume': '272', 'issue': '1-4', 'first_page': '155', 'last_page': '180'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10385', 'display_name': 'Evolution and Classification of Flowering Plants', 'score': 0.9997, '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': 'Evolution and Classification of Flowering Plants', 'score': 0.9997, '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/T10109', 'display_name': 'Paleoredox and Paleoproductivity Proxies', 'score': 0.9989, '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/T14049', 'display_name': 'Molecular Systematics of Gesneriaceae and Allies', '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'}}], 'keywords': [{'id': 'https://openalex.org/keywords/phyllotaxis', 'display_name': 'Phyllotaxis', 'score': 0.6406242}, {'id': 'https://openalex.org/keywords/plant-evolution', 'display_name': 'plant evolution', 'score': 0.464041}], 'concepts': [{'id': 'https://openalex.org/C83365034', 'wikidata': 'https://www.wikidata.org/wiki/Q76402', 'display_name': 'Permian', 'level': 3, 'score': 0.82541555}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.792439}, {'id': 'https://openalex.org/C2776985847', 'wikidata': 'https://www.wikidata.org/wiki/Q80005', 'display_name': 'Fern', 'level': 2, 'score': 0.77606803}, {'id': 'https://openalex.org/C160148424', 'wikidata': 'https://www.wikidata.org/wiki/Q987774', 'display_name': 'Vascular bundle', 'level': 2, 'score': 0.7648947}, {'id': 'https://openalex.org/C123130949', 'wikidata': 'https://www.wikidata.org/wiki/Q839659', 'display_name': 'Phyllotaxis', 'level': 4, 'score': 0.6406242}, {'id': 'https://openalex.org/C59822182', 'wikidata': 'https://www.wikidata.org/wiki/Q441', 'display_name': 'Botany', 'level': 1, 'score': 0.5967297}, {'id': 'https://openalex.org/C2781148125', 'wikidata': 'https://www.wikidata.org/wiki/Q80583', 'display_name': 'Gondwana', 'level': 3, 'score': 0.5075232}, {'id': 'https://openalex.org/C151730666', 'wikidata': 'https://www.wikidata.org/wiki/Q7205', 'display_name': 'Paleontology', 'level': 1, 'score': 0.41597417}, {'id': 'https://openalex.org/C21410773', 'wikidata': 'https://www.wikidata.org/wiki/Q220869', 'display_name': 'Shoot', 'level': 2, 'score': 0.08915046}, {'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/C126021549', 'wikidata': 'https://www.wikidata.org/wiki/Q207604', 'display_name': 'Meristem', 'level': 3, 'score': 0.0}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1007/s00606-007-0638-7', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S50870786', 'display_name': 'Plant Systematics and Evolution', 'issn_l': '0378-2697', 'issn': ['0378-2697', '1615-6110'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319900', 'host_organization_name': 'Springer Science+Business Media', 'host_organization_lineage': ['https://openalex.org/P4310319965', 'https://openalex.org/P4310319900'], 'host_organization_lineage_names': ['Springer Nature', 'Springer Science+Business Media'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 44, 'referenced_works': ['https://openalex.org/W1501617700', 'https://openalex.org/W1526094821', 'https://openalex.org/W1548979373', 'https://openalex.org/W1908418143', 'https://openalex.org/W1973927603', 'https://openalex.org/W1975418692', 'https://openalex.org/W2000998459', 'https://openalex.org/W2004918033', 'https://openalex.org/W2008150785', 'https://openalex.org/W2041266535', 'https://openalex.org/W2042594107', 'https://openalex.org/W2056731096', 'https://openalex.org/W2058665390', 'https://openalex.org/W2065671796', 'https://openalex.org/W2075322344', 'https://openalex.org/W2079852953', 'https://openalex.org/W2090475155', 'https://openalex.org/W2091143358', 'https://openalex.org/W2093040854', 'https://openalex.org/W2108622606', 'https://openalex.org/W2124783011', 'https://openalex.org/W2128139107', 'https://openalex.org/W2145827117', 'https://openalex.org/W2159477292', 'https://openalex.org/W2176487486', 'https://openalex.org/W2232969884', 'https://openalex.org/W2271757404', 'https://openalex.org/W2327201605', 'https://openalex.org/W2383339287', 'https://openalex.org/W2416084945', 'https://openalex.org/W2479772557', 'https://openalex.org/W2513211228', 'https://openalex.org/W2594480779', 'https://openalex.org/W2599299011', 'https://openalex.org/W2901108102', 'https://openalex.org/W2961302515', 'https://openalex.org/W2972930463', 'https://openalex.org/W2981827519', 'https://openalex.org/W3092459400', 'https://openalex.org/W3126824914', 'https://openalex.org/W3192128954', 'https://openalex.org/W560384389', 'https://openalex.org/W596605850', 'https://openalex.org/W644005719'], 'related_works': ['https://openalex.org/W4390460112', 'https://openalex.org/W2618925209', 'https://openalex.org/W2376132079', 'https://openalex.org/W2347385939', 'https://openalex.org/W2096544432', 'https://openalex.org/W2082746804', 'https://openalex.org/W2070183803', 'https://openalex.org/W2048312108', 'https://openalex.org/W2003036006', 'https://openalex.org/W1985216452'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2057843019', 'counts_by_year': [{'year': 2024, 'cited_by_count': 3}, {'year': 2023, 'cited_by_count': 1}, {'year': 2022, 'cited_by_count': 1}, {'year': 2021, 'cited_by_count': 7}, {'year': 2020, 'cited_by_count': 2}, {'year': 2019, 'cited_by_count': 2}, {'year': 2016, 'cited_by_count': 1}, {'year': 2015, 'cited_by_count': 1}, {'year': 2014, 'cited_by_count': 1}, {'year': 2013, 'cited_by_count': 1}], 'updated_date': '2024-09-17T15:48:42.382640', 'created_date': '2016-06-24'}