Table 3. Conch measurements, ratios and rates of Discoceras antiquissimum (Eichwald, 1842).
| specimen |
dm |
ww |
wh |
uw |
ah |
CWI |
WWI |
UWI |
WER |
IZR |
| TAM G432:72 |
145 |
31 |
31 |
– |
31 |
0.21 |
1.00 |
v |
1.62 |
– |
| TUG 1862-1 |
109 |
32 |
29.8 |
54.7 |
– |
0.29 |
1.07 |
0.50 |
1.89 |
– |
| MB.C.32314 |
118.3 |
30.5 |
27.7 |
65.7 |
27.7 |
0.26 |
1.10 |
0.56 |
1.71 |
0.00 |
| minus 180° |
86.8 |
– |
24.9 |
42.1 |
24.5 |
– |
– |
0.48 |
1.94 |
0.02 |
| MB.C.11569 |
79.8 |
28.6 |
21.0 |
42.2 |
20.6 |
0.36 |
1.36 |
0.53 |
1.82 |
0.02 |
| minus 90° |
70.4 |
25.2 |
19.9 |
35.6 |
– |
0.36 |
1.26 |
0.51 |
– |
– |
| minus 180° |
58.8 |
– |
16.6 |
28.2 |
– |
– |
– |
0.48 |
– |
– |