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 9. Conch measurements, ratios and rates of Discoceras bandonis Remelé, 1890.| specimen | dm | ww | wh | uw | ah | CWI | WWI | UWI | WER | IZR |
|---|
| MB.C.11602 | 102.1 | 30.3 | 30.3 | 46.9 | 29.2 | 0.30 | 1.00 | 0.46 | 1.96 | 0.03 |
|---|
| minus 90° | 84.7 | – | 24.4 | 41.1 | 24.4 | – | – | 0.49 | 1.97 | 0.00 |
|---|
| minus 180° | 72.9 | 24.6 | 24.9 | 31.0 | 24.9 | 0.34 | 0.99 | 0.42 | 2.31 | 0.00 |
|---|
| minus 270° | 60.3 | – | 19.8 | 23.9 | 19.8 | – | – | 0.40 | 2.21 | 0.00 |
|---|
| MB.C.11995 | 112.8 | 28.4 | 31.4 | 54.5 | 31.4 | 0.25 | 0.90 | 0.48 | 1.92 | 0.00 |
|---|
| minus 90° | 90.0 | 25.7 | 29.4 | 39.8 | 29.4 | 0.29 | 0.87 | 0.44 | 2.24 | 0.00 |
|---|
| minus 180° | 78.8 | 23.5 | 27.2 | 32.9 | 27.2 | 0.30 | 0.86 | 0.42 | 2.41 | 0.00 |
|---|
| minus 270° | 60.6 | 21.7 | 21.0 | 27.4 | 21.0 | 0.36 | 1.03 | 0.45 | 2.22 | 0.00 |
|---|
| minus 360° | 51.6 | 18.2 | 17.3 | 22.0 | 17.3 | 0.35 | 1.05 | 0.43 | 2.17 | 0.00 |
|---|
| MB.C.32318 | 107.4 | – | 31.3 | 47.3 | 31.3 | – | – | 0.44 | 1.99 | 0.00 |
|---|
| MB.C.32319 | 86.5 | – | 30.0 | 39.0 | 30.0 | – | – | 0.45 | 2.34 | 0.00 |
|---|
| GIT 426-453 | 116.9 | – | 35.3 | – | 35.3 | – | – | – | 2.05 | 0.00 |
|---|
| minus 90° | 96.8 | 24.2 | 28.1 | – | 28.1 | 0.25 | 0.86 | – | 1.99 | 0.00 |
|---|
| GIT 426-144 | 96.5 | 24.0 | 33.2 | – | 33.2 | 0.25 | 0.72 | – | 2.33 | 0.00 |
|---|
| minus 180° | 63.2 | 18.0 | 23.0 | – | 23.0 | 0.28 | 0.78 | – | 2.47 | 0.00 |
|---|
| GIT 426-128 | 100.0 | – | 34.3 | 42.7 | 34.3 | – | – | 0.43 | 2.32 | 0.00 |
|---|
| minus 180° | 65.7 | – | 23.0 | 22.7 | 23.0 | – | – | 0.35 | 2.37 | 0.00 |
|---|
| minus 270° | 54.9 | – | 20.0 | 19.2 | 20.0 | – | – | 0.35 | 2.48 | 0.00 |
|---|
| minus 360° | 42.7 | – | 15.7 | 14.5 | 15.7 | – | – | 0.34 | 2.50 | 0.00 |
|---|
| minus 450° | 34.9 | – | 12.5 | – | 12.5 | – | – | – | 2.43 | 0.00 |
|---|