| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Syspacephalus mccollumorum
Taxonomy
Syspacephalus mccollumorum was named by Sundberg (2018). Its type specimen is USNM 643819 and is a 3D body fossil.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2018 | Syspacephalus mccollumorum Sundberg p. 37 figs. Figure 27.1–27.19 |
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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.
†Syspacephalus mccollumorum Sundberg 2018
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. A. Sundberg 2018 | Cranidium with glabella slightly rounded in outline, wider (36 ± 2% glabellar width vs. cranidial width), slightly tapered (84 ± 5%); shallow glabellar furrows. Fixigena narrower (49 ± 6% anterior vs. posterior cranidial width), posterior portion moderately narrow (63 ± 3% posterior limb length to glabellar length), eye ridge nearly straight. Anterior border moderately tapered, curved and wide (56 ± 4% anterior vs. posterior cranidial width). Librigenal with rounded genal corner. Exoskeleton with fine granular surface. |
Measurements
No measurements are available
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| Source: g = genus, f = family, c = class | |||||
| References: Hendy 2009, Aberhan et al. 2004 | |||||
Age range: Templetonian or 508.00000 to 504.50000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Templetonian | USA (Nevada) | Syspacephalus mccollumorum (225158) |