Evidence map›Paper›PMID 33281741›Full record

ArticleSwiss journal of palaeontology2020

Jaws of a large belemnite and an ammonite from the Aalenian (Middle Jurassic) of Switzerland.

Christian Klug, Walter Etter, René Hoffmann, Dirk Fuchs, Kenneth De Baets

Open access · goldAbstract read
In one paragraph

Article in Swiss journal of palaeontology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
4.0field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Anatomy and size ofSwiss journal of palaeontology · 2024
    Article
  3. Article
  4. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 5 institutions in 2 countries.

Christian KlugPaläontologisches Institut und Museum, Universität Zürich, Karl-Schmid-Strasse 4, Zurich, 8006 Switzerland.ORCID 0000-0002-4099-7453
Walter EtterNaturhistorisches Museum Basel, Augustinergasse 2, Basel, 4001 Switzerland.
René HoffmannInstitute of Geology, Mineralogy & Geophysics, Ruhr-Universität Bochum, Bochum, 44801 Germany.
Dirk FuchsSNSB-Bayerische Staatssammlung für Paläontologie und Geologie, Richard-Wagner-Straße. 10, Munich, 80333 Germany.
Kenneth De BaetsGeoZentrum Nordbayern, Fachgruppe PaläoUmwelt, Universität Erlangen, Loewenichstr. 28, Erlangen, 91054 Germany.
Bayerische Staatssammlung für Paläontologie und Geologie · DEFriedrich-Alexander-Universität Erlangen-Nürnberg · DENatural History Museum of Basel · CHRuhr University Bochum · DEUniversity of Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although belemnite rostra can be quite abundant in Jurassic and Cretaceous strata, the record of belemnite jaws was limited to a few specimens from Germany and Russia. Here, we describe and figure three cephalopod jaws from the Middle Jurassic Opalinus Clay of northern Switzerland. Although flattened, the carbonaceous fossils display enough morphological information to rule out an ammonoid, nautiloid or octobrachian origin of the two larger jaws. Their similarities to belemnite jaws from Germany and Russia conforms with our interpretation of these specimens as belemnite jaws. Based on their rather large size, we tentatively assign these two jaws to the megateuthidid

Indexed as

Body sizeCephalopodaGraphoceratidaeMegateuthididaeMouthpartsOpalinus clay

Identifiers

PMID33281741
PMCPMC7717059
OpenAlexW3082304186

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.