The genus Discoceras (Tarphyceratida, Cephalopoda; Ordovician) from Estonia and glacial erratics in north-central Europe
Author
Aubrechtová, Martina
Institute of Geology, Czech Academy of Sciences, Rozvojová 269, Prague, 16500, Czech Republic. & University of Tartu, Faculty of Science and Technology, Institute of Ecology and Earth Sciences, Department of Geology, Ravila 14 a, 50411 Tartu, Estonia.
aubrechm@gmail.com
Author
Korn, Dieter
Museum für Naturkunde, Leibniz-Institut für Evolutions-und Biodiversitätsforschung, Invalidenstrasse 43, 10115 Berlin, Germany.
dieter.korn@mfn.berlin
Author
Kröger, Björn
Finnish Museum of Natural History, University of Helsinki, P. O. Box 44, Fi- 00014, Finland.
bjorn.kroger@helsinki.fi
text
European Journal of Taxonomy
2026
2026-01-29
1036
1
54
https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3173/14109
journal article
314311
10.5852/ejt.2026.1036.3173
58eef89e-653a-483e-8d9e-1ac617c7d923
2118-9773
18479586
0784B061-33CD-498B-B6D6-5CA4CF5BC2E4
Table 4. Conch measurements, ratios and rates of Discoceras saemanni (Hyatt, 1894).| specimen | dm | ww | wh | uw | ah | CWI | WWI | UWI | WER | IZR |
|---|
| MB.C.32316 | 95.6 | 28.1 | 24.8 | 50.2 | 24.8 | 0.29 | 1.13 | 0.53 | 1.82 | 0.00 |
|---|
| minus 180° | 70.8 | 24.0 | 20.6 | 35.0 | 20.6 | 0.34 | 1.16 | 0.49 | 1.99 | 0.00 |
|---|
| MB.C.32315 | 102.2 | 29.8 | 31.0 | 50.1 | 28.3 | 0.29 | 0.96 | 0.49 | 1.91 | 0.09 |
|---|
| minus 180° | 70.1 | – | 21.6 | 32.1 | 21.6 | – | – | 0.46 | 2.09 | 0.00 |
|---|