Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2771306584', 'doi': None, 'title': 'Molluscan biostratigraphy of the Cretaceous Western Interior Basin, North America', 'display_name': 'Molluscan biostratigraphy of the Cretaceous Western Interior Basin, North America', 'publication_year': 1993, 'publication_date': '1993-01-01', 'ids': {'openalex': 'https://openalex.org/W2771306584', 'mag': '2771306584'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://www.scholars.northwestern.edu/en/publications/molluscan-biostratigraphy-of-the-cretaceous-western-interior-basi', 'pdf_url': None, 'source': None, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': [], '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/A5044263002', 'display_name': 'Erle G. Kauffman', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I2802236040', 'display_name': 'University of Colorado System', 'ror': 'https://ror.org/00jc20583', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I2802236040']}, {'id': 'https://openalex.org/I188538660', 'display_name': 'University of Colorado Boulder', 'ror': 'https://ror.org/02ttsq026', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I188538660']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'E. G. Kauffman', 'raw_affiliation_strings': ['University of Colorado Boulder'], 'affiliations': [{'raw_affiliation_string': 'University of Colorado Boulder', 'institution_ids': ['https://openalex.org/I2802236040', 'https://openalex.org/I188538660']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5042713694', 'display_name': 'Bradley B. Sageman', 'orcid': 'https://orcid.org/0000-0001-5397-6654'}, 'institutions': [{'id': 'https://openalex.org/I2802236040', 'display_name': 'University of Colorado System', 'ror': 'https://ror.org/00jc20583', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I2802236040']}, {'id': 'https://openalex.org/I188538660', 'display_name': 'University of Colorado Boulder', 'ror': 'https://ror.org/02ttsq026', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I188538660']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'B. B. Sageman', 'raw_affiliation_strings': ['University of Colorado Boulder'], 'affiliations': [{'raw_affiliation_string': 'University of Colorado Boulder', 'institution_ids': ['https://openalex.org/I2802236040', 'https://openalex.org/I188538660']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5034448431', 'display_name': 'James I. Kirkland', 'orcid': 'https://orcid.org/0000-0002-9157-4813'}, 'institutions': [{'id': 'https://openalex.org/I2802236040', 'display_name': 'University of Colorado System', 'ror': 'https://ror.org/00jc20583', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I2802236040']}, {'id': 'https://openalex.org/I188538660', 'display_name': 'University of Colorado Boulder', 'ror': 'https://ror.org/02ttsq026', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I188538660']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'J. I. Kirkland', 'raw_affiliation_strings': ['University of Colorado Boulder'], 'affiliations': [{'raw_affiliation_string': 'University of Colorado Boulder', 'institution_ids': ['https://openalex.org/I2802236040', 'https://openalex.org/I188538660']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5052630960', 'display_name': 'William P. Elder', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I2802236040', 'display_name': 'University of Colorado System', 'ror': 'https://ror.org/00jc20583', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I2802236040']}, {'id': 'https://openalex.org/I188538660', 'display_name': 'University of Colorado Boulder', 'ror': 'https://ror.org/02ttsq026', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I188538660']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'W. P. Elder', 'raw_affiliation_strings': ['University of Colorado Boulder'], 'affiliations': [{'raw_affiliation_string': 'University of Colorado Boulder', 'institution_ids': ['https://openalex.org/I2802236040', 'https://openalex.org/I188538660']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5078269790', 'display_name': 'Peter J. Harries', 'orcid': 'https://orcid.org/0000-0001-8320-9114'}, 'institutions': [{'id': 'https://openalex.org/I188538660', 'display_name': 'University of Colorado Boulder', 'ror': 'https://ror.org/02ttsq026', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I188538660']}, {'id': 'https://openalex.org/I2802236040', 'display_name': 'University of Colorado System', 'ror': 'https://ror.org/00jc20583', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I2802236040']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'P. J. Harries', 'raw_affiliation_strings': ['University of Colorado Boulder'], 'affiliations': [{'raw_affiliation_string': 'University of Colorado Boulder', 'institution_ids': ['https://openalex.org/I188538660', 'https://openalex.org/I2802236040']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5074073904', 'display_name': 'Tomas Villamil', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I2802236040', 'display_name': 'University of Colorado System', 'ror': 'https://ror.org/00jc20583', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I2802236040']}, {'id': 'https://openalex.org/I188538660', 'display_name': 'University of Colorado Boulder', 'ror': 'https://ror.org/02ttsq026', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I188538660']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'T. Villamil', 'raw_affiliation_strings': ['University of Colorado Boulder'], 'affiliations': [{'raw_affiliation_string': 'University of Colorado Boulder', 'institution_ids': ['https://openalex.org/I2802236040', 'https://openalex.org/I188538660']}]}], 'countries_distinct_count': 1, 'institutions_distinct_count': 2, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 0.968, 'has_fulltext': False, 'cited_by_count': 150, 'citation_normalized_percentile': {'value': 0.884294, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 97, 'max': 98}, 'biblio': {'volume': '39', 'issue': None, 'first_page': '397', 'last_page': '434'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10109', 'display_name': 'Paleoredox and Paleoproductivity Proxies', 'score': 0.9395, '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/T10109', 'display_name': 'Paleoredox and Paleoproductivity Proxies', 'score': 0.9395, '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'}}], 'keywords': [{'id': 'https://openalex.org/keywords/marine-sediments', 'display_name': 'Marine Sediments', 'score': 0.462387}], 'concepts': [{'id': 'https://openalex.org/C61721801', 'wikidata': 'https://www.wikidata.org/wiki/Q864826', 'display_name': 'Biostratigraphy', 'level': 2, 'score': 0.94623613}, {'id': 'https://openalex.org/C12294951', 'wikidata': 'https://www.wikidata.org/wiki/Q44626', 'display_name': 'Cretaceous', 'level': 2, 'score': 0.82299817}, {'id': 'https://openalex.org/C151730666', 'wikidata': 'https://www.wikidata.org/wiki/Q7205', 'display_name': 'Paleontology', 'level': 1, 'score': 0.7817011}, {'id': 'https://openalex.org/C127313418', 'wikidata': 'https://www.wikidata.org/wiki/Q1069', 'display_name': 'Geology', 'level': 0, 'score': 0.7801986}, {'id': 'https://openalex.org/C109007969', 'wikidata': 'https://www.wikidata.org/wiki/Q749565', 'display_name': 'Structural basin', 'level': 2, 'score': 0.49473163}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://www.scholars.northwestern.edu/en/publications/molluscan-biostratigraphy-of-the-cretaceous-western-interior-basi', 'pdf_url': None, 'source': None, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [{'id': 'https://metadata.un.org/sdg/14', 'display_name': 'Life below water', 'score': 0.75}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 0, 'referenced_works': [], 'related_works': ['https://openalex.org/W305387059', 'https://openalex.org/W2885041099', 'https://openalex.org/W2474977981', 'https://openalex.org/W2469770493', 'https://openalex.org/W2397433527', 'https://openalex.org/W2247853401', 'https://openalex.org/W2241399703', 'https://openalex.org/W2237187854', 'https://openalex.org/W2175522597', 'https://openalex.org/W2146439069', 'https://openalex.org/W2123353125', 'https://openalex.org/W2083997111', 'https://openalex.org/W2015169474', 'https://openalex.org/W2013322551', 'https://openalex.org/W1997252211', 'https://openalex.org/W1606337358', 'https://openalex.org/W1602415569', 'https://openalex.org/W1600028952', 'https://openalex.org/W1525200383', 'https://openalex.org/W104781427'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2771306584', 'counts_by_year': [{'year': 2023, 'cited_by_count': 3}, {'year': 2022, 'cited_by_count': 3}, {'year': 2021, 'cited_by_count': 2}, {'year': 2020, 'cited_by_count': 3}, {'year': 2019, 'cited_by_count': 5}, {'year': 2018, 'cited_by_count': 4}, {'year': 2017, 'cited_by_count': 4}, {'year': 2016, 'cited_by_count': 9}, {'year': 2015, 'cited_by_count': 3}, {'year': 2014, 'cited_by_count': 2}, {'year': 2013, 'cited_by_count': 8}, {'year': 2012, 'cited_by_count': 4}], 'updated_date': '2024-09-11T21:28:51.608118', 'created_date': '2017-12-22'}