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Groenwallia microphthalma
Taxonomy
Proetus microphthalmus was named by Angelin (1851) [Proetus? microphthalmus]. Its type specimen is NRM Ar46146, a cephalon/head (cranidium), and it is a 3D body fossil.
It was recombined as Anomocare microphthalmum by Angelin (1854); it was recombined as Liostracus microphthalmus by Brøgger (1876); it was recombined as Loganellus microphthalmus by Strand (1929); it was recombined as Groenwallia microphthalma by Weidner et al. (2023).
It was recombined as Anomocare microphthalmum by Angelin (1854); it was recombined as Liostracus microphthalmus by Brøgger (1876); it was recombined as Loganellus microphthalmus by Strand (1929); it was recombined as Groenwallia microphthalma by Weidner et al. (2023).
Synonymy list
| Year | Name and author |
|---|---|
| 1851 | Proetus microphthalmus Angelin p. 22 figs. pl. 18, fig. 4 |
| 1854 | Anomocare microphthalmum Angelin p. 25 figs. pl. 18, fig. 4 |
| 1876 | Liostracus microphthalmus Brøgger p. 195 figs. pl. 8, figs 4, 4a, b |
| 1929 | Loganellus microphthalmus Strand p. 354 |
| 2023 | Groenwallia microphthalma Weidner et al. pp. 94 - 95 fig. 47D–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.
†Groenwallia microphthalma Angelin 1851
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Aberhan et al. 2004, Whittington et al. 1997 | |||||
Age range: base of the Drumian to the top of the Guzhangian or 504.50000 to 497.00000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Drumian | Norway | Groenwallia microphthalma (192875) | |
| Drumian | Sweden | Groenwallia microphthalma (240062) | |
| Guzhangian | Sweden (Jämtland) | Groenwallia microphthalma (239967 240068) |