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Warthia vaceki
Taxonomy
Bellerophon vaceki was named by Bittner (1899) [lectotype designated by Yochelson & Kollman 1978]. Its type specimen is GBA 1899/01/9,, a shell, and it is a 3D body fossil.
It was recombined as Warthia vaceki by Kaim and Nützel (2011), Foster et al. (2019).
It was recombined as Warthia vaceki by Kaim and Nützel (2011), Foster et al. (2019).
Synonymy list
| Year | Name and author |
|---|---|
| 1899 | Bellerophon vaceki Bittner p. 9 figs. pI. 1 f. 13—14 |
| 1976 | Bellerophon vaceki Bychkov et al. |
| 1978 | Bellerophon vaceki Yochelson and Kollman p. 126 figs. pl. 1 f. 4—22 |
| 2011 | Warthia vaceki Kaim and Nützel p. 5 figs. f. 1A-B |
| 2019 | Warthia vaceki Foster et al. p. 639 figs. 13F-H |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Warthia vaceki Bittner 1899
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| E. L. Yochelson and H. A. Kollman 1978 | Bellerophontacean gastropods with a very short U-shaped notch at the base of a wide sinus. Shell uniformly coiled; whorl profile seemingly moderately well rounded, approaching the arc of a circle, without any prominent carina and apparently not laterally compressed. Aperture with an exceedingly short broad slit, opening into a wide sinus, the sides of which diverge at an angle of about 65° from the median fine, gradually curving so that near midwhorl the edge of the outer lip lies in a plane normal to the coil and continuing to the umbilical area where there is a geniculation of the lip, bending it slightly upward from the horizontal plane; distance from outermost extent of lip to base of slit about one-eighth of total whorl. Growth lines unknown; traces of growth lines closely spaced, occurring on the most mature one-quarter of the whorl only; trace of selenizone limited to area where traces of growth lines appear; lunulae and other details of selenizone unknown. True umbilici apparently not present, but Seemingly with paired shallow indentations behind the point of geniculation on the outer lip. Ornament unknown. |
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 2 | 6.55 | 6.30 | 6.80 | 6.55 | 0.354 |
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| Source: f = family, o = order, c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range: base of the Changhsingian to the top of the Griesbachian or 254.14000 to 250.50000 Ma
Collections (24 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Changhsingian | Italy | Bellerophon vaceki (44450 74938 74939 87192 101922 101923 101924 101925 101926 101927 101936 101937) | |
| Griesbachian | Greenland | Bellerophon vaceki (48114) | |
| Griesbachian | China (Guizhou) | Warthia vaceki (200984 200988 201006 201013) | |
| Griesbachian | Italy | Bellerophon vaceki (44451 74940 74941 74944 104956 104957) Warthia vaceki (127941) |