Lethaia

Top Research Topics at Lethaia?

Lethaia investigates areas of study like Paleontology, Ecology, Anatomy, Ordovician and Fauna. Cretaceous, Devonian, Paleoecology, Paleozoic and Taphonomy are all subfields of Paleontology research that were featured in it. Benthic zone and Taxon are Ecology topics of special interest in it.

• Paleontology (47.84%)
• Ecology (16.65%)
• Anatomy (9.78%)

What are the most cited papers published in the journal?

• The Proterozoic biosphere : a multidisciplinary study (580 citations)
• EVOLUTIONARY AND ECOLOGIC SIGNIFICANCE OF OXYGEN‐DEFICIENT MARINE BASINS (462 citations)
• The new chronostratigraphic classification of the Ordovician System and its relations to major regional series and stages and to δ13C chemostratigraphy (430 citations)

Research areas of the most cited articles at Lethaia:

Paleontology, Ecology, Ordovician, Anatomy and Fauna are the main subjects of interest in the published papers. The most cited articles tackle issues in Paleontology, particularly in the topics of Trace fossil, Paleozoic, Devonian, Cretaceous and Taphonomy. The studies on Ecology discussed at the published articles can also contribute to research in the domains of Permian and Oceanography.

What topics the last edition of the journal is best known for?

• Ecology
• Genus
• Paleontology

The previous edition focused in particular on these issues:

The foci of the journal are Paleontology, Ecology, Paleoecology, Taphonomy and Zoology. Lethaia explores research in Paleontology and the adjacent study of Fauna. The research on Ecology featured in it combines topics in other fields like Baltica, Symbiosis, Lagerstätte and Paleozoic.

While Paleoecology is the focus of the journal, it also provided insights into the studies of Diversity (politics), Carbonate platform, Archaeology and Desert (philosophy). Taphonomy research presented in it encompasses a variety of subjects, including Style (visual arts), Early Triassic, Species richness, Assemblage (archaeology) and Extinction event. It holds forums on Zoology that merges themes from other disciplines such as Ontogeny, Larva, Percomorpha, Teleostei and Arthricocephalites.

The most cited articles from the last journal are:

• Symbiosis of cornulitids with the cystoporate bryozoan Fistulipora in the Pridoli of Saaremaa, Estonia (4 citations)
• New dinosaur, crocodylomorph and swim tracks from the Late Jurassic of the Lusitanian Basin: implications for ichnodiversity (3 citations)
• Train crash crinoids revisited (3 citations)

Papers citation over time

A key indicator for each journal is its effectiveness in reaching other researchers with the papers published at that venue.

The chart below presents the interquartile range (first quartile 25%, median 50% and third quartile 75%) of the number of citations of articles over time.

Top authors and change over time

The top authors publishing in Lethaia (based on the number of publications) are:

• Anders Martinsson (53 papers) absent at the last edition,
• Stephen K. Donovan (29 papers) published 1 paper at the last edition the same number as at the previous edition,
• David A. T. Harper (29 papers) published 1 paper at the last edition the same number as at the previous edition,
• Stefan Bengtson (28 papers) absent at the last edition,
• Neil H. Landman (17 papers) published 2 papers at the last edition.

The overall trend for top authors publishing in this journal is outlined below. The chart shows the number of publications at each edition of the journal for top authors.

Top affiliations and change over time

Only papers with recognized affiliations are considered

The top affiliations publishing in Lethaia (based on the number of publications) are:

• American Museum of Natural History (44 papers) published 5 papers at the last edition, 1 more than at the previous edition,
• Swedish Museum of Natural History (42 papers) absent at the last edition,
• Chinese Academy of Sciences (34 papers) published 4 papers at the last edition the same number as at the previous edition,
• Centre national de la recherche scientifique (30 papers) absent at the last edition,
• Cardiff University (30 papers) absent at the last edition.

The overall trend for top affiliations publishing in this journal is outlined below. The chart shows the number of publications at each edition of the journal for top affiliations.

Publication chance based on affiliation

The publication chance index shows the ratio of articles published by the best research institutions in the journal edition to all articles published within that journal. The best research institutions were selected based on the largest number of articles published during all editions of the journal.

The chart below presents the percentage ratio of articles from top institutions (based on their ranking of total papers).Top affiliations were grouped by their rank into the following tiers: top 1-10, top 11-20, top 21-50, and top 51+. Only articles with a recognized affiliation are considered.

During the most recent 2021 edition, 1.41% of publications had an unrecognized affiliation. Out of the publications with recognized affiliations, 24.29% were posted by at least one author from the top 10 institutions publishing in the journal. Another 11.43% included authors affiliated with research institutions from the top 11-20 affiliations. Institutions from the 21-50 range included 14.29% of all publications and 50.00% were from other institutions.

Returning Authors Index

A very common phenomenon observed among researchers publishing scientific articles is the intentional selection of journals they have already attended in the past. In particular, it is worth analyzing the case when the authors participate in the same journal from year to year.

The Returning Authors Index presented below illustrates the ratio of authors who participated in both a given as well as the previous edition of the journal in relation to all participants in a given year.

Returning Institution Index

The graph below shows the Returning Institution Index, illustrating the ratio of institutions that participated in both a given and the previous edition of the conference in relation to all affiliations present in a given year.

The experience to innovation index

Our experience to innovation index was created to show a cross-section of the experience level of authors publishing in a journal. The index includes the authors publishing at the last edition of a journal, grouped by total number of publications throughout their academic career (P) and the total number of citations of these publications ever received (C).

The group intervals were selected empirically to best show the diversity of the authors' experiences, their labels were selected as a convenience, not as judgment. The authors were divided into the following groups:

• Novice - P < 5 or C < 25 (the number of publications less than 5 or the number of citations less than 25),
• Competent - P < 10 or C < 100 (the number of publications less than 10 or the number of citations less than 100),
• Experienced - P < 25 or C < 625 (the number of publications less than 25 or the number of citations less than 625),
• Master - P < 50 or C < 2500 (the number of publications less than 50 or the number of citations less than 2500),
• Star - P ≥ 50 and C ≥ 2500 (both the number of publications greater than 50 and the number of citations greater than 2500).

The chart below illustrates experience levels of first authors in cases of publications with multiple authors.