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Spiroscala intermedia
Taxonomy
Ptychomphalus intermedius was named by de Koninck (1883). It is a 3D body fossil.
It was recombined as Spiroscala intermedia by Gromczakiewicz (1967), Gromczakiewicz-Lomnicka (1972).
It was recombined as Spiroscala intermedia by Gromczakiewicz (1967), Gromczakiewicz-Lomnicka (1972).
Synonymy list
| Year | Name and author |
|---|---|
| 1883 | Ptychomphalus intermedius de Koninck p. 37 figs. pl. 26 f. 44-47 |
| 1967 | Spiroscala intermedia Gromczakiewicz p. 129 |
| 1972 | Spiroscala intermedia Gromczakiewicz-Lomnicka p. 19 figs. Pl. III, 4 |
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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.
†Spiroscala intermedia de Koninck 1883
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. Gromczakiewicz-Lomnicka 1972 | "Small trochiform gastropod with flatly rounded base. Selenizone rather wide, slightly concave, bordered above and below by distinct carinae; selenizone ornamented by very shallow lunulae; ornamentation consists of strong transverse lirae slightly convex forwards. Sides of the shell slightly concave; in some specimens, profile of the last whorl strongly concave. Sutures shallow. Aperture small; inner lip somewhat thickened. Umbilicus minute." |
Measurements
No measurements are available
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| Source: superf = superfamily, o = order | |||||
| References: Bambach et al. 2007, Wagner 2023 | |||||
Age range: base of the Famennian to the top of the Brigantian or 372.15000 to 330.30000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Famennian | Germany (Nordrhein-Westfalen) | Ptychomphalus intermedius (38299) | |
| Brigantian | Poland (Malopolskie) | Spiroscala intermedia (101993) |