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Taxonomy
Asaphus obtusus was named by Hall (1847) [? Asaphus obtusus]. Its type specimen is NYSM 12538 (neotype), a cephalon/head (cranidium), and it is a 3D body fossil.
It was recombined as Isotelus obtusum by Raymond (1905); it was recombined as Isotelus obtusus by Raymond (1905); it was recombined as Onchometopus obtusus by Raymond (1910); it was recombined as Homotelus obtusus by Raymond (1925) and Clark (1964); it was recombined as Vogdesia obtusus by Shaw (1968), Shaw and Bolton (2011).
It was recombined as Isotelus obtusum by Raymond (1905); it was recombined as Isotelus obtusus by Raymond (1905); it was recombined as Onchometopus obtusus by Raymond (1910); it was recombined as Homotelus obtusus by Raymond (1925) and Clark (1964); it was recombined as Vogdesia obtusus by Shaw (1968), Shaw and Bolton (2011).
Synonymy list
| Year | Name and author |
|---|---|
| 1847 | Asaphus obtusus Hall p. 24 figs. Plate 4 bis, Figure 14 |
| 1905 | Isotelus obtusum Raymond |
| 1905 | Isotelus obtusus Raymond p. 344 figs. pl. 12 f. 1-2 |
| 1910 | Onchometopus obtusus Raymond p. 64 figs. Plate 18, Figures 2, 3,4, Plate 17, Figure 7 (?) |
| 1925 | Homotelus obtusus Raymond p. 90 figs. Plate 4, fig. 7, 8 |
| 1964 | Homotelus obtusus Clark p. 22 |
| 1968 | Vogdesia obtusus Shaw pp. 60 - 61 figs. plate 22, figures 10-15, plate 23, figures 1-8 |
| 2011 | Vogdesia obtusus Shaw and Bolton p. 425 |
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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.
†Vogdesia obtusus Hall 1847
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Hendy 2009, Hendy et al. 2009, Aberhan et al. 2004 | |||||
Age range: Darriwilian or 469.40000 to 458.20000 Ma
Collections (15 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Chazyan | USA (New York) | Isotelus obtusus (172321 172324 172327 172328 172329 172331 172348) | |
| Whiterockian | USA (Vermont) | Vogdesia obtusus (103298) | |
| Whiterockian | Canada (Quebec) | Vogdesia obtusus (111363 111464) | |
| Whiterockian | USA (New York) | Vogdesia obtusus (103014 103301 103311 103317) | |
| Darriwilian | Russian Federation (Siberia) | Homotelus obtusus (206302) |