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Scimago Journal & Country Rank

Lethaia

Country

Norway

Universities and research institutions in Norway
Media Ranking in Norway

Subject Area and Category

Publisher

Universitetsforlaget AS

H-Index

60

Publication type

Journals

ISSN

00241164, 15023931

Coverage

1968-2021

Information

Homepage

How to publish in this journal

eic_let@lethaia.org

Scope

Lethaia is a quarterly open access journal that publishes articles of international interest in the fields of palaeontology and stratigraphy. Articles concentrate on the development of new ideas and methods, and on descriptions of new features of wide significance. Palaeobiology, integrating the study of fossil organisms with modern biology, and palaeoecology are core topics of the journal. Biostratigraphy, analysing the relative timing and correlation of biological and environmental events, is another. Information on fossil organisms should be of general interest to palaeontologists, biologists and stratigraphers. Lethaia does not normally publish systematic palaeontology, except were this is of exceptional significance, dealing with the higher units on which our concepts of phylogeny and classification are based. Articles on stratigraphy should meet the same requirements for general interest and deal with stratigraphical principles, correlations of at least continent-wide importance, new occurrences or revisions that establish major features in palaeogeography, etc. In addition to articles, Lethaia contains shorter communications (Lethaia Focus), and reviews (Lethaia Reviews). For systematic descriptions of taxa at lower level and more comprehensive texts, readers and potential authors are referred to Fossils and Strata, an international series of monographs and memoirs in palaeontology and biostratigraphy, complementing Lethaia. Join the conversation about this journal
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
Ecology, Evolution, Behavior and Systematics1999Q1
Ecology, Evolution, Behavior and Systematics2000Q3
Ecology, Evolution, Behavior and Systematics2001Q2
Ecology, Evolution, Behavior and Systematics2002Q2
Ecology, Evolution, Behavior and Systematics2003Q2
Ecology, Evolution, Behavior and Systematics2004Q2
Ecology, Evolution, Behavior and Systematics2005Q1
Ecology, Evolution, Behavior and Systematics2006Q1
Ecology, Evolution, Behavior and Systematics2007Q1
Ecology, Evolution, Behavior and Systematics2008Q1
Ecology, Evolution, Behavior and Systematics2009Q1
Ecology, Evolution, Behavior and Systematics2010Q1
Ecology, Evolution, Behavior and Systematics2011Q1
Ecology, Evolution, Behavior and Systematics2012Q1
Ecology, Evolution, Behavior and Systematics2013Q1
Ecology, Evolution, Behavior and Systematics2014Q2
Ecology, Evolution, Behavior and Systematics2015Q2
Ecology, Evolution, Behavior and Systematics2016Q2
Ecology, Evolution, Behavior and Systematics2017Q2
Ecology, Evolution, Behavior and Systematics2018Q2
Ecology, Evolution, Behavior and Systematics2019Q1
Ecology, Evolution, Behavior and Systematics2020Q1
Ecology, Evolution, Behavior and Systematics2021Q2
Paleontology1999Q1
Paleontology2000Q2
Paleontology2001Q1
Paleontology2002Q1
Paleontology2003Q1
Paleontology2004Q1
Paleontology2005Q1
Paleontology2006Q1
Paleontology2007Q1
Paleontology2008Q1
Paleontology2009Q1
Paleontology2010Q1
Paleontology2011Q1
Paleontology2012Q1
Paleontology2013Q1
Paleontology2014Q1
Paleontology2015Q1
Paleontology2016Q1
Paleontology2017Q1
Paleontology2018Q1
Paleontology2019Q1
Paleontology2020Q1
Paleontology2021Q1
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
19991.189
20000.553
20010.844
20020.865
20030.854
20040.860
20051.146
20061.229
20071.495
20081.101
20091.386
20101.399
20111.160
20121.240
20131.092
20141.001
20150.948
20160.837
20170.873
20180.869
20190.885
20200.926
20210.659
Total Documents

Evolution of the number of published documents. All types of documents are considered, including citable and non citable documents.

YearDocuments
199931
200028
200123
200230
200328
200439
200534
200633
200736
200842
200947
201052
201146
201252
201346
201446
201546
201644
201743
201846
201939
202042
202170
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)19991.000
Cites / Doc. (4 years)20000.833
Cites / Doc. (4 years)20011.067
Cites / Doc. (4 years)20020.992
Cites / Doc. (4 years)20031.295
Cites / Doc. (4 years)20041.156
Cites / Doc. (4 years)20051.658
Cites / Doc. (4 years)20061.863
Cites / Doc. (4 years)20072.127
Cites / Doc. (4 years)20081.824
Cites / Doc. (4 years)20091.876
Cites / Doc. (4 years)20102.101
Cites / Doc. (4 years)20112.147
Cites / Doc. (4 years)20122.187
Cites / Doc. (4 years)20132.203
Cites / Doc. (4 years)20141.888
Cites / Doc. (4 years)20152.011
Cites / Doc. (4 years)20162.026
Cites / Doc. (4 years)20171.819
Cites / Doc. (4 years)20181.816
Cites / Doc. (4 years)20192.145
Cites / Doc. (4 years)20202.035
Cites / Doc. (4 years)20212.147
Cites / Doc. (3 years)19991.000
Cites / Doc. (3 years)20000.745
Cites / Doc. (3 years)20011.104
Cites / Doc. (3 years)20020.927
Cites / Doc. (3 years)20031.160
Cites / Doc. (3 years)20041.198
Cites / Doc. (3 years)20051.711
Cites / Doc. (3 years)20061.941
Cites / Doc. (3 years)20072.113
Cites / Doc. (3 years)20081.592
Cites / Doc. (3 years)20091.973
Cites / Doc. (3 years)20102.088
Cites / Doc. (3 years)20112.014
Cites / Doc. (3 years)20122.290
Cites / Doc. (3 years)20132.133
Cites / Doc. (3 years)20141.917
Cites / Doc. (3 years)20151.799
Cites / Doc. (3 years)20161.993
Cites / Doc. (3 years)20171.882
Cites / Doc. (3 years)20181.774
Cites / Doc. (3 years)20192.150
Cites / Doc. (3 years)20202.047
Cites / Doc. (3 years)20212.110
Cites / Doc. (2 years)19990.880
Cites / Doc. (2 years)20000.779
Cites / Doc. (2 years)20011.051
Cites / Doc. (2 years)20020.686
Cites / Doc. (2 years)20031.019
Cites / Doc. (2 years)20041.121
Cites / Doc. (2 years)20051.761
Cites / Doc. (2 years)20062.041
Cites / Doc. (2 years)20071.537
Cites / Doc. (2 years)20081.681
Cites / Doc. (2 years)20091.705
Cites / Doc. (2 years)20101.978
Cites / Doc. (2 years)20111.980
Cites / Doc. (2 years)20122.367
Cites / Doc. (2 years)20132.265
Cites / Doc. (2 years)20141.643
Cites / Doc. (2 years)20151.598
Cites / Doc. (2 years)20162.163
Cites / Doc. (2 years)20172.044
Cites / Doc. (2 years)20181.621
Cites / Doc. (2 years)20192.213
Cites / Doc. (2 years)20201.941
Cites / Doc. (2 years)20211.802
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 Cites19999
Self Cites20006
Self Cites20013
Self Cites20025
Self Cites20032
Self Cites20049
Self Cites20056
Self Cites20067
Self Cites200716
Self Cites20089
Self Cites200911
Self Cites201015
Self Cites201119
Self Cites201215
Self Cites201315
Self Cites201414
Self Cites201510
Self Cites201612
Self Cites201711
Self Cites20185
Self Cites201912
Self Cites20209
Self Cites202118
Total Cites1999113
Total Cites200079
Total Cites2001106
Total Cites200276
Total Cites200394
Total Cites200497
Total Cites2005166
Total Cites2006196
Total Cites2007224
Total Cites2008164
Total Cites2009219
Total Cites2010261
Total Cites2011284
Total Cites2012332
Total Cites2013320
Total Cites2014276
Total Cites2015259
Total Cites2016275
Total Cites2017256
Total Cites2018236
Total Cites2019286
Total Cites2020262
Total Cites2021268
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 document19990.920
External Cites per document20000.689
External Cites per document20011.073
External Cites per document20020.866
External Cites per document20031.136
External Cites per document20041.086
External Cites per document20051.649
External Cites per document20061.890
External Cites per document20072.000
External Cites per document20081.550
External Cites per document20091.962
External Cites per document20102.050
External Cites per document20111.992
External Cites per document20122.402
External Cites per document20132.226
External Cites per document20141.941
External Cites per document20151.741
External Cites per document20161.906
External Cites per document20171.801
External Cites per document20181.737
External Cites per document20192.060
External Cites per document20201.977
External Cites per document20211.969
Cites per document19991.000
Cites per document20000.745
Cites per document20011.104
Cites per document20020.927
Cites per document20031.160
Cites per document20041.198
Cites per document20051.711
Cites per document20061.941
Cites per document20072.113
Cites per document20081.592
Cites per document20091.973
Cites per document20102.088
Cites per document20112.014
Cites per document20122.290
Cites per document20132.133
Cites per document20141.917
Cites per document20151.799
Cites per document20161.993
Cites per document20171.882
Cites per document20181.774
Cites per document20192.150
Cites per document20202.047
Cites per document20212.110
% 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
199929.03
200025.00
20018.70
20023.33
200332.14
200443.59
200547.06
200618.18
200744.44
200850.00
200946.81
201048.08
201150.00
201261.54
201341.30
201436.96
201541.30
201638.64
201751.16
201847.83
201951.28
202066.67
202158.57
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 documents20050
Non-citable documents20061
Non-citable documents20072
Non-citable documents20083
Non-citable documents20095
Non-citable documents20105
Non-citable documents20118
Non-citable documents201213
Non-citable documents201313
Non-citable documents20149
Non-citable documents20151
Non-citable documents20160
Non-citable documents20170
Non-citable documents20180
Non-citable documents20190
Non-citable documents20200
Non-citable documents20210
Citable documents1999113
Citable documents2000106
Citable documents200196
Citable documents200282
Citable documents200381
Citable documents200481
Citable documents200597
Citable documents2006100
Citable documents2007104
Citable documents2008100
Citable documents2009106
Citable documents2010120
Citable documents2011133
Citable documents2012132
Citable documents2013137
Citable documents2014135
Citable documents2015143
Citable documents2016138
Citable documents2017136
Citable documents2018133
Citable documents2019133
Citable documents2020128
Citable documents2021127
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 documents199960
Uncited documents200060
Uncited documents200147
Uncited documents200241
Uncited documents200329
Uncited documents200439
Uncited documents200543
Uncited documents200639
Uncited documents200744
Uncited documents200836
Uncited documents200943
Uncited documents201035
Uncited documents201143
Uncited documents201241
Uncited documents201335
Uncited documents201440
Uncited documents201538
Uncited documents201625
Uncited documents201729
Uncited documents201843
Uncited documents201940
Uncited documents202035
Uncited documents202132
Cited documents199953
Cited documents200046
Cited documents200149
Cited documents200241
Cited documents200352
Cited documents200442
Cited documents200554
Cited documents200662
Cited documents200762
Cited documents200867
Cited documents200968
Cited documents201090
Cited documents201198
Cited documents2012104
Cited documents2013115
Cited documents2014104
Cited documents2015106
Cited documents2016113
Cited documents2017107
Cited documents201890
Cited documents201993
Cited documents202093
Cited documents202195
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