Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2974031284', 'doi': 'https://doi.org/10.18814/epiiugs/2004/v27i2/002', 'title': 'A new Geologic Time Scale, with special reference to Precambrian and Neogene', 'display_name': 'A new Geologic Time Scale, with special reference to Precambrian and Neogene', 'publication_year': 2004, 'publication_date': '2004-06-01', 'ids': {'openalex': 'https://openalex.org/W2974031284', 'doi': 'https://doi.org/10.18814/epiiugs/2004/v27i2/002', 'mag': '2974031284'}, 'language': 'en', 'primary_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.18814/epiiugs/2004/v27i2/002', 'pdf_url': 'http://www.episodes.org/journal/download_pdf.php?doi=10.18814/epiiugs/2004/v27i2/002', 'source': {'id': 'https://openalex.org/S182646890', 'display_name': 'Episodes', 'issn_l': '0705-3797', 'issn': ['0705-3797', '2586-1298'], 'is_oa': True, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310321803', 'host_organization_name': 'International Union of Geological Sciences', 'host_organization_lineage': ['https://openalex.org/P4310321803'], 'host_organization_lineage_names': ['International Union of Geological Sciences'], 'type': 'journal'}, 'license': 'cc-by-nc', 'license_id': 'https://openalex.org/licenses/cc-by-nc', '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': 'http://www.episodes.org/journal/download_pdf.php?doi=10.18814/epiiugs/2004/v27i2/002', 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5051532295', 'display_name': 'Felix M. Gradstein', 'orcid': 'https://orcid.org/0000-0002-6033-813X'}, 'institutions': [{'id': 'https://openalex.org/I184942183', 'display_name': 'University of Oslo', 'ror': 'https://ror.org/01xtthb56', 'country_code': 'NO', 'type': 'education', 'lineage': ['https://openalex.org/I184942183']}, {'id': 'https://openalex.org/I219193219', 'display_name': 'Purdue University West Lafayette', 'ror': 'https://ror.org/02dqehb95', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I219193219']}, {'id': 'https://openalex.org/I241749', 'display_name': 'University of Cambridge', 'ror': 'https://ror.org/013meh722', 'country_code': 'GB', 'type': 'education', 'lineage': ['https://openalex.org/I241749']}, {'id': 'https://openalex.org/I1327020802', 'display_name': 'Geological Survey of Canada', 'ror': 'https://ror.org/03wm7z656', 'country_code': 'CA', 'type': 'government', 'lineage': ['https://openalex.org/I1281735042', 'https://openalex.org/I1327020802', 'https://openalex.org/I2802286613']}, {'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': ['CA', 'GB', 'NL', 'NO', 'US'], 'is_corresponding': True, 'raw_author_name': 'Felix M. Gradstein', 'raw_affiliation_strings': [' . Department of Earth & Atmospheric Sciences, Purdue University, West Lafayette, Indiana 47907-1397, USA.', ' . Department of Earth Sciences, Cambridge University, Cambridge CB2 3EQ, England.', ' . Faculty of Earth Sciences, Utrecht University, 3508 TA Utrecht, The Netherlands.', ' . Geological Museum, University of Oslo, N-0318 Oslo, Norway.', ' . Geological Survey of Canada, 601 Booth Str., Ottawa, Ontario K1A OE8, Canada.', 'auspices of the International Commission on Stratigraphy.'], 'affiliations': [{'raw_affiliation_string': ' . Geological Museum, University of Oslo, N-0318 Oslo, Norway.', 'institution_ids': ['https://openalex.org/I184942183']}, {'raw_affiliation_string': ' . Department of Earth & Atmospheric Sciences, Purdue University, West Lafayette, Indiana 47907-1397, USA.', 'institution_ids': ['https://openalex.org/I219193219']}, {'raw_affiliation_string': ' . Department of Earth Sciences, Cambridge University, Cambridge CB2 3EQ, England.', 'institution_ids': ['https://openalex.org/I241749']}, {'raw_affiliation_string': ' . Geological Survey of Canada, 601 Booth Str., Ottawa, Ontario K1A OE8, Canada.', 'institution_ids': ['https://openalex.org/I1327020802']}, {'raw_affiliation_string': ' . Faculty of Earth Sciences, Utrecht University, 3508 TA Utrecht, The Netherlands.', 'institution_ids': ['https://openalex.org/I193662353']}, {'raw_affiliation_string': 'auspices of the International Commission on Stratigraphy.', 'institution_ids': []}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5080242076', 'display_name': 'James G. Ogg', 'orcid': 'https://orcid.org/0000-0001-5716-3511'}, 'institutions': [{'id': 'https://openalex.org/I184942183', 'display_name': 'University of Oslo', 'ror': 'https://ror.org/01xtthb56', 'country_code': 'NO', 'type': 'education', 'lineage': ['https://openalex.org/I184942183']}, {'id': 'https://openalex.org/I219193219', 'display_name': 'Purdue University West Lafayette', 'ror': 'https://ror.org/02dqehb95', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I219193219']}, {'id': 'https://openalex.org/I241749', 'display_name': 'University of Cambridge', 'ror': 'https://ror.org/013meh722', 'country_code': 'GB', 'type': 'education', 'lineage': ['https://openalex.org/I241749']}, {'id': 'https://openalex.org/I1327020802', 'display_name': 'Geological Survey of Canada', 'ror': 'https://ror.org/03wm7z656', 'country_code': 'CA', 'type': 'government', 'lineage': ['https://openalex.org/I1281735042', 'https://openalex.org/I1327020802', 'https://openalex.org/I2802286613']}, {'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': ['CA', 'GB', 'NL', 'NO', 'US'], 'is_corresponding': False, 'raw_author_name': 'James G. Ogg', 'raw_affiliation_strings': [' . Department of Earth & Atmospheric Sciences, Purdue University, West Lafayette, Indiana 47907-1397, USA.', ' . Department of Earth Sciences, Cambridge University, Cambridge CB2 3EQ, England.', ' . Faculty of Earth Sciences, Utrecht University, 3508 TA Utrecht, The Netherlands.', ' . Geological Museum, University of Oslo, N-0318 Oslo, Norway.', ' . Geological Survey of Canada, 601 Booth Str., Ottawa, Ontario K1A OE8, Canada.', 'auspices of the International Commission on Stratigraphy.'], 'affiliations': [{'raw_affiliation_string': ' . Geological Museum, University of Oslo, N-0318 Oslo, Norway.', 'institution_ids': ['https://openalex.org/I184942183']}, {'raw_affiliation_string': ' . Department of Earth & Atmospheric Sciences, Purdue University, West Lafayette, Indiana 47907-1397, USA.', 'institution_ids': ['https://openalex.org/I219193219']}, {'raw_affiliation_string': ' . Department of Earth Sciences, Cambridge University, Cambridge CB2 3EQ, England.', 'institution_ids': ['https://openalex.org/I241749']}, {'raw_affiliation_string': ' . Geological Survey of Canada, 601 Booth Str., Ottawa, Ontario K1A OE8, Canada.', 'institution_ids': ['https://openalex.org/I1327020802']}, {'raw_affiliation_string': ' . Faculty of Earth Sciences, Utrecht University, 3508 TA Utrecht, The Netherlands.', 'institution_ids': ['https://openalex.org/I193662353']}, {'raw_affiliation_string': 'auspices of the International Commission on Stratigraphy.', 'institution_ids': []}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5108115604', 'display_name': 'Alan G. Smith', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I184942183', 'display_name': 'University of Oslo', 'ror': 'https://ror.org/01xtthb56', 'country_code': 'NO', 'type': 'education', 'lineage': ['https://openalex.org/I184942183']}, {'id': 'https://openalex.org/I219193219', 'display_name': 'Purdue University West Lafayette', 'ror': 'https://ror.org/02dqehb95', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I219193219']}, {'id': 'https://openalex.org/I241749', 'display_name': 'University of Cambridge', 'ror': 'https://ror.org/013meh722', 'country_code': 'GB', 'type': 'education', 'lineage': ['https://openalex.org/I241749']}, {'id': 'https://openalex.org/I1327020802', 'display_name': 'Geological Survey of Canada', 'ror': 'https://ror.org/03wm7z656', 'country_code': 'CA', 'type': 'government', 'lineage': ['https://openalex.org/I1281735042', 'https://openalex.org/I1327020802', 'https://openalex.org/I2802286613']}, {'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': ['CA', 'GB', 'NL', 'NO', 'US'], 'is_corresponding': False, 'raw_author_name': 'Alan G. Smith', 'raw_affiliation_strings': [' . Department of Earth & Atmospheric Sciences, Purdue University, West Lafayette, Indiana 47907-1397, USA.', ' . Department of Earth Sciences, Cambridge University, Cambridge CB2 3EQ, England.', ' . Faculty of Earth Sciences, Utrecht University, 3508 TA Utrecht, The Netherlands.', ' . Geological Museum, University of Oslo, N-0318 Oslo, Norway.', ' . Geological Survey of Canada, 601 Booth Str., Ottawa, Ontario K1A OE8, Canada.', 'auspices of the International Commission on Stratigraphy.'], 'affiliations': [{'raw_affiliation_string': ' . Geological Museum, University of Oslo, N-0318 Oslo, Norway.', 'institution_ids': ['https://openalex.org/I184942183']}, {'raw_affiliation_string': ' . Department of Earth & Atmospheric Sciences, Purdue University, West Lafayette, Indiana 47907-1397, USA.', 'institution_ids': ['https://openalex.org/I219193219']}, {'raw_affiliation_string': ' . Department of Earth Sciences, Cambridge University, Cambridge CB2 3EQ, England.', 'institution_ids': ['https://openalex.org/I241749']}, {'raw_affiliation_string': ' . Geological Survey of Canada, 601 Booth Str., Ottawa, Ontario K1A OE8, Canada.', 'institution_ids': ['https://openalex.org/I1327020802']}, {'raw_affiliation_string': ' . Faculty of Earth Sciences, Utrecht University, 3508 TA Utrecht, The Netherlands.', 'institution_ids': ['https://openalex.org/I193662353']}, {'raw_affiliation_string': 'auspices of the International Commission on Stratigraphy.', 'institution_ids': []}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5019512779', 'display_name': 'Wouter Bleeker', 'orcid': 'https://orcid.org/0000-0002-3783-5840'}, 'institutions': [{'id': 'https://openalex.org/I184942183', 'display_name': 'University of Oslo', 'ror': 'https://ror.org/01xtthb56', 'country_code': 'NO', 'type': 'education', 'lineage': ['https://openalex.org/I184942183']}, {'id': 'https://openalex.org/I219193219', 'display_name': 'Purdue University West Lafayette', 'ror': 'https://ror.org/02dqehb95', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I219193219']}, {'id': 'https://openalex.org/I241749', 'display_name': 'University of Cambridge', 'ror': 'https://ror.org/013meh722', 'country_code': 'GB', 'type': 'education', 'lineage': ['https://openalex.org/I241749']}, {'id': 'https://openalex.org/I1327020802', 'display_name': 'Geological Survey of Canada', 'ror': 'https://ror.org/03wm7z656', 'country_code': 'CA', 'type': 'government', 'lineage': ['https://openalex.org/I1281735042', 'https://openalex.org/I1327020802', 'https://openalex.org/I2802286613']}, {'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': ['CA', 'GB', 'NL', 'NO', 'US'], 'is_corresponding': False, 'raw_author_name': 'Wouter Bleeker', 'raw_affiliation_strings': [' . Department of Earth & Atmospheric Sciences, Purdue University, West Lafayette, Indiana 47907-1397, USA.', ' . Department of Earth Sciences, Cambridge University, Cambridge CB2 3EQ, England.', ' . Faculty of Earth Sciences, Utrecht University, 3508 TA Utrecht, The Netherlands.', ' . Geological Museum, University of Oslo, N-0318 Oslo, Norway.', ' . Geological Survey of Canada, 601 Booth Str., Ottawa, Ontario K1A OE8, Canada.', 'auspices of the International Commission on Stratigraphy.'], 'affiliations': [{'raw_affiliation_string': ' . Geological Museum, University of Oslo, N-0318 Oslo, Norway.', 'institution_ids': ['https://openalex.org/I184942183']}, {'raw_affiliation_string': ' . Department of Earth & Atmospheric Sciences, Purdue University, West Lafayette, Indiana 47907-1397, USA.', 'institution_ids': ['https://openalex.org/I219193219']}, {'raw_affiliation_string': ' . Department of Earth Sciences, Cambridge University, Cambridge CB2 3EQ, England.', 'institution_ids': ['https://openalex.org/I241749']}, {'raw_affiliation_string': ' . Geological Survey of Canada, 601 Booth Str., Ottawa, Ontario K1A OE8, Canada.', 'institution_ids': ['https://openalex.org/I1327020802']}, {'raw_affiliation_string': ' . Faculty of Earth Sciences, Utrecht University, 3508 TA Utrecht, The Netherlands.', 'institution_ids': ['https://openalex.org/I193662353']}, {'raw_affiliation_string': 'auspices of the International Commission on Stratigraphy.', 'institution_ids': []}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5035581610', 'display_name': 'Lucas Joost Lourens', 'orcid': 'https://orcid.org/0000-0002-3815-7770'}, 'institutions': [{'id': 'https://openalex.org/I219193219', 'display_name': 'Purdue University West Lafayette', 'ror': 'https://ror.org/02dqehb95', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I219193219']}, {'id': 'https://openalex.org/I241749', 'display_name': 'University of Cambridge', 'ror': 'https://ror.org/013meh722', 'country_code': 'GB', 'type': 'education', 'lineage': ['https://openalex.org/I241749']}, {'id': 'https://openalex.org/I1327020802', 'display_name': 'Geological Survey of Canada', 'ror': 'https://ror.org/03wm7z656', 'country_code': 'CA', 'type': 'government', 'lineage': ['https://openalex.org/I1281735042', 'https://openalex.org/I1327020802', 'https://openalex.org/I2802286613']}, {'id': 'https://openalex.org/I184942183', 'display_name': 'University of Oslo', 'ror': 'https://ror.org/01xtthb56', 'country_code': 'NO', 'type': 'education', 'lineage': ['https://openalex.org/I184942183']}, {'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': ['CA', 'GB', 'NL', 'NO', 'US'], 'is_corresponding': False, 'raw_author_name': 'Lucas J. Lourens', 'raw_affiliation_strings': [' . Department of Earth & Atmospheric Sciences, Purdue University, West Lafayette, Indiana 47907-1397, USA.', ' . Department of Earth Sciences, Cambridge University, Cambridge CB2 3EQ, England.', ' . Faculty of Earth Sciences, Utrecht University, 3508 TA Utrecht, The Netherlands.', ' . Geological Museum, University of Oslo, N-0318 Oslo, Norway.', ' . Geological Survey of Canada, 601 Booth Str., Ottawa, Ontario K1A OE8, Canada.', 'auspices of the International Commission on Stratigraphy.'], 'affiliations': [{'raw_affiliation_string': ' . Department of Earth & Atmospheric Sciences, Purdue University, West Lafayette, Indiana 47907-1397, USA.', 'institution_ids': ['https://openalex.org/I219193219']}, {'raw_affiliation_string': ' . Department of Earth Sciences, Cambridge University, Cambridge CB2 3EQ, England.', 'institution_ids': ['https://openalex.org/I241749']}, {'raw_affiliation_string': ' . Geological Survey of Canada, 601 Booth Str., Ottawa, Ontario K1A OE8, Canada.', 'institution_ids': ['https://openalex.org/I1327020802']}, {'raw_affiliation_string': ' . Geological Museum, University of Oslo, N-0318 Oslo, Norway.', 'institution_ids': ['https://openalex.org/I184942183']}, {'raw_affiliation_string': ' . Faculty of Earth Sciences, Utrecht University, 3508 TA Utrecht, The Netherlands.', 'institution_ids': ['https://openalex.org/I193662353']}, {'raw_affiliation_string': 'auspices of the International Commission on Stratigraphy.', 'institution_ids': []}]}], 'institution_assertions': [], 'countries_distinct_count': 5, 'institutions_distinct_count': 5, 'corresponding_author_ids': ['https://openalex.org/A5051532295'], 'corresponding_institution_ids': ['https://openalex.org/I184942183', 'https://openalex.org/I219193219', 'https://openalex.org/I241749', 'https://openalex.org/I1327020802', 'https://openalex.org/I193662353'], 'apc_list': None, 'apc_paid': None, 'fwci': 102.189, 'has_fulltext': True, 'fulltext_origin': 'pdf', 'cited_by_count': 907, 'citation_normalized_percentile': {'value': 0.999952, 'is_in_top_1_percent': True, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 99, 'max': 100}, 'biblio': {'volume': '27', 'issue': '2', 'first_page': '83', 'last_page': '100'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T12157', 'display_name': 'Geochemistry and Geologic Mapping', 'score': 0.2718, 'subfield': {'id': 'https://openalex.org/subfields/1702', 'display_name': 'Artificial Intelligence'}, 'field': {'id': 'https://openalex.org/fields/17', 'display_name': 'Computer Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, 'topics': [{'id': 'https://openalex.org/T12157', 'display_name': 'Geochemistry and Geologic Mapping', 'score': 0.2718, 'subfield': {'id': 'https://openalex.org/subfields/1702', 'display_name': 'Artificial Intelligence'}, 'field': {'id': 'https://openalex.org/fields/17', 'display_name': 'Computer Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/neogene', 'display_name': 'Neogene', 'score': 0.83900917}, {'id': 'https://openalex.org/keywords/geologic-time-scale', 'display_name': 'Geologic time scale', 'score': 0.51502323}], 'concepts': [{'id': 'https://openalex.org/C173776410', 'wikidata': 'https://www.wikidata.org/wiki/Q103910', 'display_name': 'Precambrian', 'level': 2, 'score': 0.91201526}, {'id': 'https://openalex.org/C27492601', 'wikidata': 'https://www.wikidata.org/wiki/Q103924', 'display_name': 'Neogene', 'level': 3, 'score': 0.83900917}, {'id': 'https://openalex.org/C127313418', 'wikidata': 'https://www.wikidata.org/wiki/Q1069', 'display_name': 'Geology', 'level': 0, 'score': 0.8055387}, {'id': 'https://openalex.org/C2778755073', 'wikidata': 'https://www.wikidata.org/wiki/Q10858537', 'display_name': 'Scale (ratio)', 'level': 2, 'score': 0.5857353}, {'id': 'https://openalex.org/C107385308', 'wikidata': 'https://www.wikidata.org/wiki/Q43521', 'display_name': 'Geologic time scale', 'level': 3, 'score': 0.51502323}, {'id': 'https://openalex.org/C151730666', 'wikidata': 'https://www.wikidata.org/wiki/Q7205', 'display_name': 'Paleontology', 'level': 1, 'score': 0.4480765}, {'id': 'https://openalex.org/C1965285', 'wikidata': 'https://www.wikidata.org/wiki/Q8008', 'display_name': 'Earth science', 'level': 1, 'score': 0.35239375}, {'id': 'https://openalex.org/C58640448', 'wikidata': 'https://www.wikidata.org/wiki/Q42515', 'display_name': 'Cartography', 'level': 1, 'score': 0.10653806}, {'id': 'https://openalex.org/C205649164', 'wikidata': 'https://www.wikidata.org/wiki/Q1071', 'display_name': 'Geography', 'level': 0, 'score': 0.071413666}, {'id': 'https://openalex.org/C6494504', 'wikidata': 'https://www.wikidata.org/wiki/Q82480', 'display_name': 'Sedimentary rock', 'level': 2, 'score': 0.0412817}, {'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': [{'is_oa': True, 'landing_page_url': 'https://doi.org/10.18814/epiiugs/2004/v27i2/002', 'pdf_url': 'http://www.episodes.org/journal/download_pdf.php?doi=10.18814/epiiugs/2004/v27i2/002', 'source': {'id': 'https://openalex.org/S182646890', 'display_name': 'Episodes', 'issn_l': '0705-3797', 'issn': ['0705-3797', '2586-1298'], 'is_oa': True, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310321803', 'host_organization_name': 'International Union of Geological Sciences', 'host_organization_lineage': ['https://openalex.org/P4310321803'], 'host_organization_lineage_names': ['International Union of Geological Sciences'], 'type': 'journal'}, 'license': 'cc-by-nc', 'license_id': 'https://openalex.org/licenses/cc-by-nc', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}], 'best_oa_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.18814/epiiugs/2004/v27i2/002', 'pdf_url': 'http://www.episodes.org/journal/download_pdf.php?doi=10.18814/epiiugs/2004/v27i2/002', 'source': {'id': 'https://openalex.org/S182646890', 'display_name': 'Episodes', 'issn_l': '0705-3797', 'issn': ['0705-3797', '2586-1298'], 'is_oa': True, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310321803', 'host_organization_name': 'International Union of Geological Sciences', 'host_organization_lineage': ['https://openalex.org/P4310321803'], 'host_organization_lineage_names': ['International Union of Geological Sciences'], 'type': 'journal'}, 'license': 'cc-by-nc', 'license_id': 'https://openalex.org/licenses/cc-by-nc', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'sustainable_development_goals': [{'id': 'https://metadata.un.org/sdg/13', 'score': 0.51, 'display_name': 'Climate action'}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 22, 'referenced_works': ['https://openalex.org/W1676390580', 'https://openalex.org/W1992565879', 'https://openalex.org/W1993165032', 'https://openalex.org/W1999221887', 'https://openalex.org/W2013112511', 'https://openalex.org/W2017114107', 'https://openalex.org/W2025719311', 'https://openalex.org/W2027477351', 'https://openalex.org/W2030650005', 'https://openalex.org/W2064138840', 'https://openalex.org/W2085790365', 'https://openalex.org/W2088007589', 'https://openalex.org/W2088117901', 'https://openalex.org/W2096557357', 'https://openalex.org/W2108316127', 'https://openalex.org/W2114126392', 'https://openalex.org/W2115575384', 'https://openalex.org/W2140893622', 'https://openalex.org/W2147985533', 'https://openalex.org/W2974744641', 'https://openalex.org/W3113274446', 'https://openalex.org/W63793336'], 'related_works': ['https://openalex.org/W3145914565', 'https://openalex.org/W3021991081', 'https://openalex.org/W2740595328', 'https://openalex.org/W2073884632', 'https://openalex.org/W2029533471', 'https://openalex.org/W2013152418', 'https://openalex.org/W1969271661', 'https://openalex.org/W1601664818', 'https://openalex.org/W153187648', 'https://openalex.org/W1507695575'], 'abstract_inverted_index': {'A': [0], 'Geologic': [1], 'Time': [2], 'Scale': [3], '(GTS2004)': [4], 'is': [5, 63, 74], 'presented': [6], 'that': [7], 'integrates': [8], 'currently': [9], 'available': [10], 'stratigraphic': [11], 'and': [12, 26, 52, 82], 'geochronologic': [13], 'information.Key': [14], 'features': [15], 'of': [16, 40, 56, 69, 76, 80], 'the': [17, 41, 48, 66, 70, 84], 'new': [18], 'scale': [19, 51], 'are': [20], 'outlined,': [21], 'how': [22, 27], 'it': [23, 28], 'was': [24], 'constructed,': [25], 'can': [29], 'be': [30], 'further': [31], 'improved.The': [32], 'accompanying': [33], 'International': [34, 42], 'Stratigraphic': [35], 'Chart,': [36], 'issued': [37], 'under': [38], 'auspices': [39], 'Commission': [43], 'on': [44], 'Stratigraphy': [45], '(ICS),': [46], 'shows': [47], 'current': [49], 'chronostratigraphic': [50], 'ages': [53], 'with': [54], 'estimates': [55], 'uncertainty': [57], 'for': [58], 'all': [59], 'stage': [60], 'boundaries.Special': [61], 'reference': [62], 'made': [64], 'to': [65, 83], 'Precambrian': [67], 'part': [68], 'time': [71], 'scale,': [72], 'which': [73, 87], 'coming': [75], 'age': [77], 'in': [78], 'terms': [79], 'detail,': [81], 'Neogene': [85], 'portion,': [86], 'has': [88], 'attained': [89], 'an': [90], 'ultra-high-precision': [91], 'absolute-age': [92], 'calibration.': [93]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2974031284', 'counts_by_year': [{'year': 2024, 'cited_by_count': 14}, {'year': 2023, 'cited_by_count': 28}, {'year': 2022, 'cited_by_count': 19}, {'year': 2021, 'cited_by_count': 26}, {'year': 2020, 'cited_by_count': 24}, {'year': 2019, 'cited_by_count': 35}, {'year': 2018, 'cited_by_count': 29}, {'year': 2017, 'cited_by_count': 14}, {'year': 2016, 'cited_by_count': 19}, {'year': 2015, 'cited_by_count': 28}, {'year': 2014, 'cited_by_count': 25}, {'year': 2013, 'cited_by_count': 45}, {'year': 2012, 'cited_by_count': 57}], 'updated_date': '2025-01-07T21:40:33.763372', 'created_date': '2019-09-26'}