Scimago Journal & Country Rank

Fossils and Strata

Country United States  - SIR icon SIR Ranking of United States
21
H Index
Subject Area and CategoryEarth and Planetary Sciences
Paleontology
PublisherWiley-Blackwell
Publication typeJournals
ISSN03009491
Coverage1981, 1983, 1985, 1987-1989, 1991, 1996-1999, 2001, 2003-2006, 2008-2009, 2012-2013
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Quartiles

The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

CategoryYearQuartile
Paleontology1999Q1
Paleontology2000Q1
Paleontology2001Q1
Paleontology2002Q4
Paleontology2003Q1
Paleontology2004Q1
Paleontology2005Q3
Paleontology2006Q2
Paleontology2007Q2
Paleontology2008Q4
Paleontology2009Q3
Paleontology2010Q3
Paleontology2011Q3
Paleontology2012Q2
Paleontology2013Q1
Paleontology2014Q3
Paleontology2015Q2
Paleontology2016Q3
Paleontology2018Q1
SJR

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

YearSJR
19992.177
20000.848
20012.406
20020.137
20031.702
20040.883
20050.508
20060.559
20070.458
20080.114
20090.279
20100.475
20110.378
20120.569
20130.921
20140.405
20150.803
20160.281
20180.749
Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per documentYearValue
Cites / Doc. (4 years)19992.583
Cites / Doc. (4 years)20002.077
Cites / Doc. (4 years)20012.750
Cites / Doc. (4 years)20022.750
Cites / Doc. (4 years)20035.500
Cites / Doc. (4 years)20043.000
Cites / Doc. (4 years)20051.700
Cites / Doc. (4 years)20060.950
Cites / Doc. (4 years)20071.524
Cites / Doc. (4 years)20081.050
Cites / Doc. (4 years)20090.556
Cites / Doc. (4 years)20100.889
Cites / Doc. (4 years)20110.886
Cites / Doc. (4 years)20120.343
Cites / Doc. (4 years)20134.500
Cites / Doc. (4 years)20141.000
Cites / Doc. (4 years)20151.500
Cites / Doc. (4 years)20160.500
Cites / Doc. (4 years)20170.500
Cites / Doc. (4 years)20181.500
Cites / Doc. (3 years)19992.583
Cites / Doc. (3 years)20001.667
Cites / Doc. (3 years)20015.333
Cites / Doc. (3 years)20020.500
Cites / Doc. (3 years)20036.000
Cites / Doc. (3 years)20043.000
Cites / Doc. (3 years)20051.632
Cites / Doc. (3 years)20060.950
Cites / Doc. (3 years)20071.250
Cites / Doc. (3 years)20080.500
Cites / Doc. (3 years)20090.571
Cites / Doc. (3 years)20100.857
Cites / Doc. (3 years)20110.886
Cites / Doc. (3 years)20123.000
Cites / Doc. (3 years)20133.000
Cites / Doc. (3 years)20141.000
Cites / Doc. (3 years)20151.500
Cites / Doc. (3 years)20161.000
Cites / Doc. (3 years)20170.000
Cites / Doc. (3 years)20181.500
Cites / Doc. (2 years)19992.455
Cites / Doc. (2 years)20002.000
Cites / Doc. (2 years)20015.000
Cites / Doc. (2 years)20021.000
Cites / Doc. (2 years)20036.000
Cites / Doc. (2 years)20040.000
Cites / Doc. (2 years)20051.632
Cites / Doc. (2 years)20060.789
Cites / Doc. (2 years)20071.000
Cites / Doc. (2 years)20080.000
Cites / Doc. (2 years)20090.559
Cites / Doc. (2 years)20100.857
Cites / Doc. (2 years)20115.000
Cites / Doc. (2 years)20120.000
Cites / Doc. (2 years)20133.000
Cites / Doc. (2 years)20141.000
Cites / Doc. (2 years)20151.000
Cites / Doc. (2 years)20160.000
Cites / Doc. (2 years)20170.000
Cites / Doc. (2 years)20181.500
Total Cites 
Self-Cites

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

CitesYearValue
Self Cites19990
Self Cites20000
Self Cites20010
Self Cites20020
Self Cites20030
Self Cites20040
Self Cites20050
Self Cites20060
Self Cites20070
Self Cites20080
Self Cites20090
Self Cites20100
Self Cites20110
Self Cites20120
Self Cites20130
Self Cites20140
Self Cites20150
Self Cites20160
Self Cites20170
Self Cites20180
Total Cites199931
Total Cites200020
Total Cites200116
Total Cites20021
Total Cites20036
Total Cites20046
Total Cites200531
Total Cites200619
Total Cites200725
Total Cites20081
Total Cites200920
Total Cites201030
Total Cites201131
Total Cites20123
Total Cites20133
Total Cites20142
Total Cites20153
Total Cites20161
Total Cites20170
Total Cites20183
External Cites per Doc 
Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

CitesYearValue
External Cites per document19992.583
External Cites per document20001.667
External Cites per document20015.333
External Cites per document20020.500
External Cites per document20036.000
External Cites per document20043.000
External Cites per document20051.632
External Cites per document20060.950
External Cites per document20071.250
External Cites per document20080.500
External Cites per document20090.571
External Cites per document20100.857
External Cites per document20110.886
External Cites per document20123.000
External Cites per document20133.000
External Cites per document20141.000
External Cites per document20151.500
External Cites per document20161.000
External Cites per document20170.000
External Cites per document20181.500
Cites per document19992.583
Cites per document20001.667
Cites per document20015.333
Cites per document20020.500
Cites per document20036.000
Cites per document20043.000
Cites per document20051.632
Cites per document20060.950
Cites per document20071.250
Cites per document20080.500
Cites per document20090.571
Cites per document20100.857
Cites per document20110.886
Cites per document20123.000
Cites per document20133.000
Cites per document20141.000
Cites per document20151.500
Cites per document20161.000
Cites per document20170.000
Cites per document20181.500
% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

YearInternational Collaboration
1999100.00
20000
20010.00
20020
20030.00
200430.00
20050.00
20060.00
20070
200845.71
20090.00
20100
20110
2012100.00
2013100.00
20140
20150
2016100.00
2017100.00
20180
Citable documents 
Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

DocumentsYearValue
Non-citable documents19990
Non-citable documents20000
Non-citable documents20010
Non-citable documents20020
Non-citable documents20030
Non-citable documents20040
Non-citable documents20052
Non-citable documents20062
Non-citable documents20072
Non-citable documents20080
Non-citable documents20091
Non-citable documents20101
Non-citable documents20111
Non-citable documents20120
Non-citable documents20130
Non-citable documents20140
Non-citable documents20150
Non-citable documents20160
Non-citable documents20170
Non-citable documents20180
Citable documents199912
Citable documents200012
Citable documents20013
Citable documents20022
Citable documents20031
Citable documents20042
Citable documents200519
Citable documents200620
Citable documents200720
Citable documents20082
Citable documents200935
Citable documents201035
Citable documents201135
Citable documents20121
Citable documents20131
Citable documents20142
Citable documents20152
Citable documents20161
Citable documents20171
Citable documents20182
Cited documents 
Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

DocumentsYearValue
Uncited documents19993
Uncited documents20004
Uncited documents20010
Uncited documents20021
Uncited documents20030
Uncited documents20041
Uncited documents200511
Uncited documents200610
Uncited documents20078
Uncited documents20081
Uncited documents200923
Uncited documents201017
Uncited documents201119
Uncited documents20120
Uncited documents20130
Uncited documents20141
Uncited documents20150
Uncited documents20160
Uncited documents20171
Uncited documents20180
Cited documents19999
Cited documents20008
Cited documents20013
Cited documents20021
Cited documents20031
Cited documents20041
Cited documents200510
Cited documents200612
Cited documents200714
Cited documents20081
Cited documents200913
Cited documents201019
Cited documents201117
Cited documents20121
Cited documents20131
Cited documents20141
Cited documents20152
Cited documents20161
Cited documents20170
Cited documents20182
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