Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W1981122090', 'doi': 'https://doi.org/10.1080/10420940490428841', 'title': 'The Fossil Record of Vertebrate Tracks in Mexico', 'display_name': 'The Fossil Record of Vertebrate Tracks in Mexico', 'publication_year': 2004, 'publication_date': '2004-01-01', 'ids': {'openalex': 'https://openalex.org/W1981122090', 'doi': 'https://doi.org/10.1080/10420940490428841', 'mag': '1981122090'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1080/10420940490428841', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4210170836', 'display_name': 'Ichnos/Ichnos : an international journal for plant and animal traces', 'issn_l': '1026-7999', 'issn': ['1026-7999', '1042-0940', '1563-5236'], 'is_oa': False, 'is_in_doaj': False, 'is_indexed_in_scopus': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320547', 'host_organization_name': 'Taylor & Francis', 'host_organization_lineage': ['https://openalex.org/P4310320547'], 'host_organization_lineage_names': ['Taylor & Francis'], '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/A5030056234', 'display_name': 'Rubén A. Rodrı́guez-de la Rosa', 'orcid': 'https://orcid.org/0000-0002-7219-1550'}, 'institutions': [], 'countries': ['MX'], 'is_corresponding': False, 'raw_author_name': 'Rubén A. Rodríguez-de la Rosa', 'raw_affiliation_strings': ['Laboratorio de Paleontología, Museo del Desierto & Coordinación de Paleontología, S.E.P.C. , Coahuila, México'], 'affiliations': [{'raw_affiliation_string': 'Laboratorio de Paleontología, Museo del Desierto & Coordinación de Paleontología, S.E.P.C. , Coahuila, México', 'institution_ids': []}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5018351555', 'display_name': 'Martha Carolina Aguillón-Martínez', 'orcid': None}, 'institutions': [], 'countries': ['MX'], 'is_corresponding': False, 'raw_author_name': 'Martha C. Aguillón-Martínez', 'raw_affiliation_strings': ['Laboratorio de Paleontología, Museo del Desierto & Coordinación de Paleontología, S.E.P.C. , Coahuila, México'], 'affiliations': [{'raw_affiliation_string': 'Laboratorio de Paleontología, Museo del Desierto & Coordinación de Paleontología, S.E.P.C. , Coahuila, México', 'institution_ids': []}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5044776093', 'display_name': 'José López-Espinoza', 'orcid': None}, 'institutions': [], 'countries': ['MX'], 'is_corresponding': False, 'raw_author_name': 'José López-Espinoza', 'raw_affiliation_strings': ['Laboratorio de Paleontología, Museo del Desierto & Coordinación de Paleontología, S.E.P.C. , Coahuila, México'], 'affiliations': [{'raw_affiliation_string': 'Laboratorio de Paleontología, Museo del Desierto & Coordinación de Paleontología, S.E.P.C. , Coahuila, México', 'institution_ids': []}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5043073488', 'display_name': 'David A. Eberth', 'orcid': 'https://orcid.org/0009-0009-4671-7078'}, 'institutions': [{'id': 'https://openalex.org/I2802288275', 'display_name': 'Royal Tyrrell Museum', 'ror': 'https://ror.org/0376mq589', 'country_code': 'CA', 'type': 'archive', 'lineage': ['https://openalex.org/I2802288275']}], 'countries': ['CA'], 'is_corresponding': False, 'raw_author_name': 'David A. Eberth', 'raw_affiliation_strings': ['Royal Tyrrell Museum of Palaeontology , Drumheller, Alberta , Canada.'], 'affiliations': [{'raw_affiliation_string': 'Royal Tyrrell Museum of Palaeontology , Drumheller, Alberta , Canada.', 'institution_ids': ['https://openalex.org/I2802288275']}]}], 'institution_assertions': [], 'countries_distinct_count': 2, 'institutions_distinct_count': 1, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 1.38, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 49, 'citation_normalized_percentile': {'value': 0.829285, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 92, 'max': 93}, 'biblio': {'volume': '11', 'issue': '1-2', 'first_page': '27', 'last_page': '37'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10955', 'display_name': 'Paleontology and Evolutionary Biology', 'score': 0.9999, '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/T10955', 'display_name': 'Paleontology and Evolutionary Biology', 'score': 0.9999, '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/T11354', 'display_name': 'Evolution and Paleontology Studies', 'score': 0.9983, '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/T11387', 'display_name': 'Ichthyology and Marine Biology', 'score': 0.9972, 'subfield': {'id': 'https://openalex.org/subfields/2309', 'display_name': 'Nature and Landscape Conservation'}, 'field': {'id': 'https://openalex.org/fields/23', 'display_name': 'Environmental Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/mammal', 'display_name': 'Mammal', 'score': 0.62464464}, {'id': 'https://openalex.org/keywords/quadrupedalism', 'display_name': 'Quadrupedalism', 'score': 0.47486305}, {'id': 'https://openalex.org/keywords/fossil-record', 'display_name': 'Fossil Record', 'score': 0.43160945}], 'concepts': [{'id': 'https://openalex.org/C151730666', 'wikidata': 'https://www.wikidata.org/wiki/Q7205', 'display_name': 'Paleontology', 'level': 1, 'score': 0.7542083}, {'id': 'https://openalex.org/C12294951', 'wikidata': 'https://www.wikidata.org/wiki/Q44626', 'display_name': 'Cretaceous', 'level': 2, 'score': 0.7410294}, {'id': 'https://openalex.org/C2778961482', 'wikidata': 'https://www.wikidata.org/wiki/Q25241', 'display_name': 'Vertebrate', 'level': 3, 'score': 0.6728244}, {'id': 'https://openalex.org/C2778234026', 'wikidata': 'https://www.wikidata.org/wiki/Q7377', 'display_name': 'Mammal', 'level': 2, 'score': 0.62464464}, {'id': 'https://openalex.org/C53570757', 'wikidata': 'https://www.wikidata.org/wiki/Q25546', 'display_name': 'Pleistocene', 'level': 2, 'score': 0.60212785}, {'id': 'https://openalex.org/C127313418', 'wikidata': 'https://www.wikidata.org/wiki/Q1069', 'display_name': 'Geology', 'level': 0, 'score': 0.54806626}, {'id': 'https://openalex.org/C134181672', 'wikidata': 'https://www.wikidata.org/wiki/Q21907045', 'display_name': 'Quadrupedalism', 'level': 2, 'score': 0.47486305}, {'id': 'https://openalex.org/C2776110070', 'wikidata': 'https://www.wikidata.org/wiki/Q2455930', 'display_name': 'Fossil Record', 'level': 2, 'score': 0.43160945}, {'id': 'https://openalex.org/C205649164', 'wikidata': 'https://www.wikidata.org/wiki/Q1071', 'display_name': 'Geography', 'level': 0, 'score': 0.36087653}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.2174753}, {'id': 'https://openalex.org/C55493867', 'wikidata': 'https://www.wikidata.org/wiki/Q7094', 'display_name': 'Biochemistry', 'level': 1, '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/10.1080/10420940490428841', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4210170836', 'display_name': 'Ichnos/Ichnos : an international journal for plant and animal traces', 'issn_l': '1026-7999', 'issn': ['1026-7999', '1042-0940', '1563-5236'], 'is_oa': False, 'is_in_doaj': False, 'is_indexed_in_scopus': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320547', 'host_organization_name': 'Taylor & Francis', 'host_organization_lineage': ['https://openalex.org/P4310320547'], 'host_organization_lineage_names': ['Taylor & Francis'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [{'display_name': 'Life below water', 'score': 0.47, 'id': 'https://metadata.un.org/sdg/14'}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 10, 'referenced_works': ['https://openalex.org/W1000345689', 'https://openalex.org/W113118019', 'https://openalex.org/W2003962594', 'https://openalex.org/W2004227477', 'https://openalex.org/W2061715094', 'https://openalex.org/W2069408758', 'https://openalex.org/W2091220191', 'https://openalex.org/W2159723914', 'https://openalex.org/W2173940237', 'https://openalex.org/W3090377025'], 'related_works': ['https://openalex.org/W4255725232', 'https://openalex.org/W4236554669', 'https://openalex.org/W3110700448', 'https://openalex.org/W2994975109', 'https://openalex.org/W2893545827', 'https://openalex.org/W2380377798', 'https://openalex.org/W2267362598', 'https://openalex.org/W2069898387', 'https://openalex.org/W2003900686', 'https://openalex.org/W1635239171'], 'abstract_inverted_index': {'Abstract': [0], 'The': [1], 'fossil': [2], 'record': [3, 37, 197], 'of': [4, 38, 57, 111, 135, 146, 162, 177, 210, 323, 340], 'vertebrate': [5, 39, 202], 'tracks': [6, 31, 40, 56, 70, 85, 88, 110, 134, 145, 176, 189], 'in': [7, 17, 41, 129, 159, 191], 'Mexico': [8, 77], 'is': [9, 216], 'taxonomically': [10], 'rich': [11], 'and': [12, 15, 24, 49, 68, 83, 87, 92, 108, 119, 123, 142, 167, 174, 185, 193, 205, 249, 256, 261, 266, 287, 299, 312, 334], 'geographically': [13], 'diverse,': [14], 'ranges': [16], 'age': [18, 60, 149], 'from': [19, 32, 53, 63, 73, 152, 350], 'Middle': [20, 27], 'Jurassic': [21, 28, 47, 59], 'to': [22, 45, 90, 115, 223, 232, 293, 364], 'Pleistocene': [23, 156, 187], 'possibly': [25, 124], 'Holocene.': [26], 'saurischian': [29], 'dinosaur': [30], 'Oaxaca': [33], 'represent': [34], 'the': [35, 103, 130, 160, 208, 269, 294, 313, 316, 327, 341, 351], 'oldest': [36], 'Mexico.': [42], 'Tracks': [43], 'attributed': [44], 'Late': [46, 80], 'theropods': [48], 'ornithopods': [50], 'are': [51, 61, 71, 150], 'known': [52, 62, 72, 151], 'Michoacán.': [54], 'Theropod': [55], 'supposed': [58, 147], 'Durango.': [64], 'Lower': [65], 'Cretaceous': [66, 81], 'Saurischian': [67], 'ornithopod': [69], 'southern': [74], 'Puebla.': [75], 'Central': [76], 'has': [78], 'yielded': [79], 'hadrosaurid': [82], 'sauropod': [84], '(Puebla),': [86], 'belonging': [89], 'Theropoda': [91], 'Ornithopoda': [93], '(El': [94], 'Aguaje,': [95], 'Michoacan).': [96], 'In': [97], 'Coahuila': [98, 192], 'several': [99], 'tracksites': [100], 'occur': [101, 158, 190], 'within': [102], 'Cerro': [104], 'del': [105, 318], 'Pueblo': [106], 'Formation': [107, 132], 'include': [109, 175], 'mesoreptiles,': [112], 'pterosaurs,': [113], 'small': [114, 140, 180], 'large': [116, 183], 'theropods,': [117, 139], 'bipedal': [118], 'quadrupedal': [120], 'ornithopods,': [121, 141], 'birds': [122], 'a': [125], 'mammal.': [126], 'A': [127], 'tracksite': [128], 'Olmos': [131], 'includes': [133], 'turtles,': [136], 'crocodilians,': [137], 'medium-sized': [138], 'birds.': [143, 186], 'Bird': [144], 'Eocene': [148], 'Sinaloa.': [153], 'Two': [154], 'important': [155, 199], 'ichnofaunas': [157], 'states': [161], 'Puebla': [163], '(Tepexi': [164], 'de': [165, 171], 'Rodríguez)': [166], 'Jalisco': [168], '(San': [169], 'Juan': [170], 'los': [172], 'Lagos),': [173], 'camelids,': [178], 'artiodactyls,': [179], 'ungulates,': [181], 'elephants,': [182], 'felids': [184], 'human': [188], 'Jalisco.': [194], "Mexico's": [195], 'track': [196], 'provides': [198], 'insights': [200, 265], 'into': [201], 'diversity,': [203], 'paleoecology,': [204], 'paleoenvironments.': [206], 'Given': [207], 'rate': [209], 'new': [211, 220], 'discoveries': [212], 'since': [213], '1998,': [214], 'there': [215], 'no': [217], 'doubt': [218], 'that': [219], 'sites': [221], 'await': [222], 'be': [224], 'found.': [225], 'Keywords:': [226], 'Paleoichnologyfossil': [227], 'tracksdinosaursvertebratesMexico': [228], 'ACKNOWLEDGEMENTS': [229], 'We': [230], 'thank': [231, 331], 'Miguel': [233], 'A.': [234], 'Lara,': [235], 'Carlos': [236], 'R.': [237], 'Delgado-de': [238], 'Jesús,': [239], 'Ignacio': [240], 'Vallejo,': [241], 'Rufino': [242], 'Rodríguez,': [243], 'José': [244], 'Flores-Ventura,': [245], 'Donald': [246], 'B.': [247], 'Brinkman': [248], 'Scott': [250, 365], 'D.': [251, 366], 'Sampson': [252], 'for': [253, 337], 'their': [254], 'encouragement': [255], 'field': [257, 271], 'support.': [258], 'Rich': [259], 'McCrea': [260], 'Giuseppe': [262], 'Leonardi': [263], 'provided': [264, 290], 'companionship': [267], 'during': [268], '2002': [270], 'season.': [272], 'Martin': [273], 'G.': [274], 'Lockley': [275], 'freely': [276], 'shared': [277], 'his': [278], 'data': [279, 297, 344], 'with': [280, 347], 'us.': [281], 'Robert': [282], 'L.': [283], 'Carroll,': [284], 'Jason': [285], 'Anderson': [286], 'Ingrid': [288], 'Birker': [289], 'helpful': [291], 'access': [292], 'Redpath': [295], 'Museum': [296], 'base': [298], 'collections.': [300], 'Federico': [301], 'Solórzano': [302], 'Barreto,': [303], 'Oscar': [304], 'J.': [305], 'Polaco,': [306], 'Rosario': [307], 'Gómez-Núñez,': [308], 'Arturo': [309], 'H.': [310], 'González-González': [311], 'staff': [314], 'at': [315], 'Museo': [317], 'Desierto': [319], 'supported': [320], 'many': [321], 'aspects': [322], 'this': [324], 'research': [325], 'over': [326], 'years.': [328], 'Finally': [329], 'we': [330], 'Neffra': [332], 'Matthews': [333], 'David': [335], 'Mossman': [336], 'critical': [338], 'review': [339], 'manuscript.': [342], 'Some': [343], 'were': [345], 'collected': [346], 'financial': [348], 'assistance': [349], 'Parras': [352], 'Basin': [353], 'Dinosaur': [354], 'Project': [355], 'funded': [356], 'by': [357], 'National': [358], 'Geographic': [359], 'Society': [360], 'Grant': [361], 'No.': [362], '7171-01': [363], 'Sampson.': [367]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W1981122090', 'counts_by_year': [{'year': 2024, 'cited_by_count': 4}, {'year': 2022, 'cited_by_count': 1}, {'year': 2021, 'cited_by_count': 2}, {'year': 2020, 'cited_by_count': 3}, {'year': 2019, 'cited_by_count': 2}, {'year': 2018, 'cited_by_count': 7}, {'year': 2017, 'cited_by_count': 2}, {'year': 2016, 'cited_by_count': 3}, {'year': 2015, 'cited_by_count': 3}, {'year': 2014, 'cited_by_count': 1}, {'year': 2013, 'cited_by_count': 2}, {'year': 2012, 'cited_by_count': 3}], 'updated_date': '2025-01-24T12:23:56.882058', 'created_date': '2016-06-24'}