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Homocystites alter
Taxonomy
Homocystites alter was named by Barrande (1887).
It was recombined as Cheirocrinus alter by Bassler and Moodey (1943).
It was recombined as Cheirocrinus alter by Bassler and Moodey (1943).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1887 | Homocystites alter Barrande p. 160 figs. PI. 28 (11), figs. 1-21 |
| 1943 | Cheirocrinus alter Bassler and Moodey pp. 34, 142 |
| 1968 | Homocystites alter Kesling pp. S183-184 figs. 87, 2a-b (non figs. 2c-d) |
| 1972 | Homocystites alter Paul pp. 46 - 47 figs. Plate 4, figs. 1-4, Text-figs. 3i, 4i, 14-16 |
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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.
†Homocystites alter Barrande 1887
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. R. C. Paul 1972 | A species of Homocystites with plate ornament of prominent axial ridges (occasionally with accessory ridges) and fine granules or fine growth lines; outer columnals with double-rimmed flanges; pectinirhomb slit-spacing averages 0.1972 mm. |
Measurements
No measurements are available
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| Source: o = order, p = phylum | |||||
| References: Aberhan 1992, Aberhan et al. 2004 | |||||
Age range: Zahorany or 459.30000 to 457.30000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Zahorany | Czechia | Homocystites alter (155333) | |
| Zahorany - Late/Upper Ordovician | Czechia | Cheirocrinus alter (3865) |