Publication Information

{'id': 'https://openalex.org/W2580505192', 'doi': 'https://doi.org/10.1111/plb.1997.46.2.161', 'title': 'Aspects of Permian palaeobotany and palynology. XVIII. On the morphology and ultrastructure of<i>Potonieisporites novicus</i>(prepollen of Late Carboniferous/Early Permian Walchiaceae)', 'display_name': 'Aspects of Permian palaeobotany and palynology. XVIII. On the morphology and ultrastructure of<i>Potonieisporites novicus</i>(prepollen of Late Carboniferous/Early Permian Walchiaceae)', 'publication_year': 1997, 'publication_date': '1997-06-01', 'ids': {'openalex': 'https://openalex.org/W2580505192', 'doi': 'https://doi.org/10.1111/plb.1997.46.2.161', 'mag': '2580505192'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1111/plb.1997.46.2.161', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4210197340', 'display_name': 'Acta Botanica Neerlandica', 'issn_l': '0044-5983', 'issn': ['0044-5983', '1365-2001'], 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/P4310320000', 'host_organization_name': 'Thieme Medical Publishers (Germany)', 'host_organization_lineage': ['https://openalex.org/P4310320000'], 'host_organization_lineage_names': ['Thieme Medical Publishers (Germany)'], '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/A5056284721', 'display_name': 'R.J. Poort', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I193662353', 'display_name': 'Utrecht University', 'ror': 'https://ror.org/04pp8hn57', 'country_code': 'NL', 'type': 'education', 'lineage': ['https://openalex.org/I193662353']}], 'countries': ['NL'], 'is_corresponding': False, 'raw_author_name': 'Ruud J. Poort', 'raw_affiliation_strings': ['Laboratory of Palaeobotany and Palynology, Utrecht University, Budapestlaan 4, 3584 CD Utrecht, The Netherlands'], 'affiliations': [{'raw_affiliation_string': 'Laboratory of Palaeobotany and Palynology, Utrecht University, Budapestlaan 4, 3584 CD Utrecht, The Netherlands', 'institution_ids': ['https://openalex.org/I193662353']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5057261723', 'display_name': 'Harry Veld', 'orcid': 'https://orcid.org/0000-0003-4058-578X'}, 'institutions': [{'id': 'https://openalex.org/I193662353', 'display_name': 'Utrecht University', 'ror': 'https://ror.org/04pp8hn57', 'country_code': 'NL', 'type': 'education', 'lineage': ['https://openalex.org/I193662353']}], 'countries': ['NL'], 'is_corresponding': False, 'raw_author_name': 'Harry Veld', 'raw_affiliation_strings': ['Laboratory of Palaeobotany and Palynology, Utrecht University, Budapestlaan 4, 3584 CD Utrecht, The Netherlands'], 'affiliations': [{'raw_affiliation_string': 'Laboratory of Palaeobotany and Palynology, Utrecht University, Budapestlaan 4, 3584 CD Utrecht, The Netherlands', 'institution_ids': ['https://openalex.org/I193662353']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 1, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 1.658, 'has_fulltext': False, 'cited_by_count': 21, 'citation_normalized_percentile': {'value': 0.830605, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 84, 'max': 85}, 'biblio': {'volume': '46', 'issue': '2', 'first_page': '161', 'last_page': '173'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10385', 'display_name': 'Plant Diversity and Evolution', 'score': 0.9958, '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': 0.9958, '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/T12618', 'display_name': 'Botany and Plant Ecology Studies', 'score': 0.9748, 'subfield': {'id': 'https://openalex.org/subfields/1110', 'display_name': 'Plant Science'}, '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/T13168', 'display_name': 'Plant Ecology and Taxonomy Studies', 'score': 0.9555, '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/paleobotany', 'display_name': 'Paleobotany', 'score': 0.7172887}, {'id': 'https://openalex.org/keywords/morphology', 'display_name': 'Morphology', 'score': 0.56938624}], 'concepts': [{'id': 'https://openalex.org/C83365034', 'wikidata': 'https://www.wikidata.org/wiki/Q76402', 'display_name': 'Permian', 'level': 3, 'score': 0.93205905}, {'id': 'https://openalex.org/C162501224', 'wikidata': 'https://www.wikidata.org/wiki/Q212919', 'display_name': 'Palynology', 'level': 3, 'score': 0.84693205}, {'id': 'https://openalex.org/C149918038', 'wikidata': 'https://www.wikidata.org/wiki/Q133738', 'display_name': 'Carboniferous', 'level': 3, 'score': 0.84675837}, {'id': 'https://openalex.org/C151730666', 'wikidata': 'https://www.wikidata.org/wiki/Q7205', 'display_name': 'Paleontology', 'level': 1, 'score': 0.7289307}, {'id': 'https://openalex.org/C7407677', 'wikidata': 'https://www.wikidata.org/wiki/Q192694', 'display_name': 'Paleobotany', 'level': 4, 'score': 0.7172887}, {'id': 'https://openalex.org/C127313418', 'wikidata': 'https://www.wikidata.org/wiki/Q1069', 'display_name': 'Geology', 'level': 0, 'score': 0.6620686}, {'id': 'https://openalex.org/C499950583', 'wikidata': 'https://www.wikidata.org/wiki/Q183252', 'display_name': 'Morphology (biology)', 'level': 2, 'score': 0.56938624}, {'id': 'https://openalex.org/C2780618852', 'wikidata': 'https://www.wikidata.org/wiki/Q79932', 'display_name': 'Pollen', 'level': 2, 'score': 0.29309615}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.14201808}, {'id': 'https://openalex.org/C59822182', 'wikidata': 'https://www.wikidata.org/wiki/Q441', 'display_name': 'Botany', 'level': 1, 'score': 0.12873444}, {'id': 'https://openalex.org/C2778239642', 'wikidata': 'https://www.wikidata.org/wiki/Q3045481', 'display_name': 'Plant development', 'level': 3, 'score': 0.045844615}, {'id': 'https://openalex.org/C55493867', 'wikidata': 'https://www.wikidata.org/wiki/Q7094', 'display_name': 'Biochemistry', '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}, {'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': False, 'landing_page_url': 'https://doi.org/10.1111/plb.1997.46.2.161', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4210197340', 'display_name': 'Acta Botanica Neerlandica', 'issn_l': '0044-5983', 'issn': ['0044-5983', '1365-2001'], 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/P4310320000', 'host_organization_name': 'Thieme Medical Publishers (Germany)', 'host_organization_lineage': ['https://openalex.org/P4310320000'], 'host_organization_lineage_names': ['Thieme Medical Publishers (Germany)'], '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': 17, 'referenced_works': ['https://openalex.org/W1987808659', 'https://openalex.org/W1988921625', 'https://openalex.org/W1989561916', 'https://openalex.org/W2002035920', 'https://openalex.org/W2022343604', 'https://openalex.org/W2034171843', 'https://openalex.org/W2059692475', 'https://openalex.org/W2068334327', 'https://openalex.org/W2330982163', 'https://openalex.org/W2477376790', 'https://openalex.org/W3012533257', 'https://openalex.org/W3185652663', 'https://openalex.org/W4246825279', 'https://openalex.org/W4295943608', 'https://openalex.org/W4296110460', 'https://openalex.org/W4392702581', 'https://openalex.org/W4392705955'], 'related_works': ['https://openalex.org/W2736251669', 'https://openalex.org/W2381494361', 'https://openalex.org/W2376608677', 'https://openalex.org/W2374843461', 'https://openalex.org/W2362520777', 'https://openalex.org/W2361984374', 'https://openalex.org/W2358695675', 'https://openalex.org/W2358382993', 'https://openalex.org/W2157017705', 'https://openalex.org/W129624991'], 'abstract_inverted_index': {'The': [0, 50], 'type': [1], 'species': [2, 34, 51, 88], 'of': [3, 23, 32, 38, 45, 75, 79, 82, 107, 123, 126, 137], 'the': [4, 21, 24, 33, 43, 80, 87, 102, 113, 124, 130, 134, 141], 'palynological': [5], 'form-genus': [6, 114], 'Potonieisporites,': [7], 'P.': [8], 'novicus,': [9], 'can': [10, 116], 'be': [11, 119], 'considered': [12], 'to': [13, 20], 'represent': [14], 'Late': [15], 'Carboniferous/Early': [16], 'Permian': [17], 'conifers,': [18], 'assignable': [19], 'Walchiaceae': [22], 'Euramerican': [25], 'floral': [26, 143], 'province.': [27, 144], 'Morphological': [28], 'and': [29, 42, 133], 'ultrastructural': [30], 'analysis': [31], 'falsifies': [35], 'earlier': [36], 'concepts': [37], 'a': [39, 46, 55, 83], 'monosaccate': [40], 'organization': [41, 136], 'presence': [44], 'distal': [47, 76], 'germinal': [48], 'area.': [49], 'is': [52, 68, 72], 'characterized': [53], 'by': [54], 'monosaccoid': [56], 'sexine': [57], 'expansion,': [58], 'completely': [59], 'filled': [60], 'with': [61], 'an': [62, 98, 108], 'alveolate': [63], 'infrastructure.': [64], 'A': [65, 104], 'proximal': [66], 'aperture': [67], 'distinct,': [69], 'but': [70], 'there': [71], 'no': [73], 'evidence': [74, 128], 'specializations': [77], 'indicative': [78], 'outgrowth': [81], 'haustorial': [84], 'pollen': [85, 139], 'tube;': [86], 'thus': [89], 'qualifies': [90], 'as': [91], 'prepollen.': [92], 'These': [93], 'characters': [94], 'are': [95], 'included': [96], 'in': [97], 'emended': [99], 'diagnosis': [100], 'for': [101, 112], 'species.': [103], 'restricted': [105], 'concept': [106], 'exclusively': [109], 'walchiaceous': [110], 'status': [111], 'Potonieisporites': [115], 'not': [117], 'yet': [118], 'proposed,': [120], 'mainly': [121], 'because': [122], 'lack': [125], 'conclusive': [127], 'on': [129], 'botanical': [131], 'affinity': [132], 'morphological/ultrastructural': [135], 'similar': [138], 'from': [140], 'Gondwana': [142]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2580505192', 'counts_by_year': [{'year': 2024, 'cited_by_count': 1}, {'year': 2023, 'cited_by_count': 1}, {'year': 2022, 'cited_by_count': 2}, {'year': 2021, 'cited_by_count': 2}, {'year': 2015, 'cited_by_count': 1}, {'year': 2012, 'cited_by_count': 3}], 'updated_date': '2024-12-10T15:08:21.999850', 'created_date': '2017-02-03'}