Class information for:
Level 1: CRETACEOUS RESEARCH//AMMONITES//APTIAN

Basic class information
Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
3 4 GEOSCIENCES, MULTIDISCIPLINARY//GEOCHEMISTRY & GEOPHYSICS//METEOROLOGY & ATMOSPHERIC SCIENCES 1953906
0 3       GEOCHEMISTRY & GEOPHYSICS//GEOSCIENCES, MULTIDISCIPLINARY//GEOLOGY 272432
187 2             PALEONTOLOGY//GEOLOGY//AMMONITES 21050
486 1                   CRETACEOUS RESEARCH//AMMONITES//APTIAN 3421

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 CRETACEOUS RESEARCH journal 1374671 16% 27% 560
2 AMMONITES authKW 883409 8% 37% 261
3 APTIAN authKW 725837 4% 52% 153
4 CRETACEOUS authKW 642019 14% 15% 467
5 TURONIAN authKW 575555 4% 50% 125
6 RUDISTS authKW 566703 2% 83% 74
7 CENOMANIAN authKW 549716 5% 36% 165
8 PALEONTOLOGY WoSSC 517346 52% 3% 1795
9 ALBIAN authKW 452654 4% 35% 139
10 OCEANIC ANOXIC EVENT authKW 427716 2% 60% 78

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Paleontology 517346 52% 3% 1795
2 Geology 245980 37% 2% 1277
3 Geosciences, Multidisciplinary 33739 37% 0% 1255
4 Geography, Physical 9628 9% 0% 314
5 Oceanography 768 4% 0% 130
6 Geochemistry & Geophysics 486 4% 0% 136
7 Multidisciplinary Sciences 181 2% 0% 52
8 Engineering, Petroleum 174 1% 0% 28
9 Biodiversity Conservation 64 1% 0% 31
10 Mineralogy 4 0% 0% 12

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 SEKT PALAOZOOL 214345 1% 73% 32
2 SEDIMENTOL PALEONTOL 156181 1% 40% 42
3 MUSEUM MINERAL GEOL 95892 1% 39% 27
4 GEOL ECT 87320 0% 59% 16
5 GEOL MINERAL GEOPHYS 85156 3% 10% 91
6 GEOL 62809 20% 1% 693
7 GEOL PALEONTOL 61796 3% 6% 107
8 RECH MICROPALEONTOL 46054 0% 100% 5
9 ABT GEOL DIENST 10 36844 0% 100% 4
10 REFERAT MEE GEOL 36844 0% 100% 4

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 CRETACEOUS RESEARCH 1374671 16% 27% 560
2 ACTA GEOLOGICA POLONICA 180013 3% 22% 87
3 CARNETS DE GEOLOGIE 114188 1% 31% 40
4 PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 99778 9% 4% 292
5 AFRICAN NATURAL HISTORY 76502 1% 46% 18
6 NEWSLETTERS ON STRATIGRAPHY 64940 2% 13% 54
7 JOURNAL OF FORAMINIFERAL RESEARCH 49036 2% 8% 70
8 PALEOCEANOGRAPHY 36860 3% 4% 92
9 GEOBIOS 29362 2% 4% 75
10 INITIAL REPORTS OF THE DEEP SEA DRILLING PROJECT 28689 2% 5% 63

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 AMMONITES 883409 8% 37% 261 Search AMMONITES Search AMMONITES
2 APTIAN 725837 4% 52% 153 Search APTIAN Search APTIAN
3 CRETACEOUS 642019 14% 15% 467 Search CRETACEOUS Search CRETACEOUS
4 TURONIAN 575555 4% 50% 125 Search TURONIAN Search TURONIAN
5 RUDISTS 566703 2% 83% 74 Search RUDISTS Search RUDISTS
6 CENOMANIAN 549716 5% 36% 165 Search CENOMANIAN Search CENOMANIAN
7 ALBIAN 452654 4% 35% 139 Search ALBIAN Search ALBIAN
8 OCEANIC ANOXIC EVENT 427716 2% 60% 78 Search OCEANIC+ANOXIC+EVENT Search OCEANIC+ANOXIC+EVENT
9 CENOMANIAN TURONIAN 414553 2% 70% 64 Search CENOMANIAN+TURONIAN Search CENOMANIAN+TURONIAN
10 BIOSTRATIGRAPHY 380562 10% 12% 343 Search BIOSTRATIGRAPHY Search BIOSTRATIGRAPHY

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.

Classes with closest relation at Level 1


rank cluster_id2 link
1 21589 CALPIONELLIDS//BERRIASIAN//JURASSIC CRETACEOUS BOUNDARY
2 27830 ESTN REG NOROESTE//SCLERACTINIA//FORE BALKAN
3 22572 PALYNOFACIES//DINOFLAGELLATE CYSTS//SYSTEMATIC PALYNOLOGY
4 32372 CNRS GEOL MARINE 41//DREDGE SAMPLE//ENVIRONMENT AND BIOGEOCHEMISTRY
5 2561 AMMONITES//OXFORDIAN//JURASSIC
6 11526 CARBONATE PLATFORM//KANSAS INTERDISCIPLINARY CARBONATES CONSORTIUM//FISCHER PLOTS
7 35312 NORTHEASTERN RUSSIA//PHYTOSTRATIGRAPHY//FOSSIL FLORA
8 5985 K T BOUNDARY//CRETACEOUS TERTIARY BOUNDARY//CRETACEOUS PALEOGENE BOUNDARY
9 37090 ORTHOZONE//AZOLLA BEDS//BAKCHAR IRON ORE DEPOSIT
10 22114 TECHNOL DEV SUPPORT UNIT//GEOL GEOPHYS ERVOIR ENGN GRPMINATO KU//MODERN BRACHIOPOD CALCITE

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