Basic info | Taxonomic history | Classification | Included Taxa |
Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Sphaerexochus parvus
Taxonomy
Sphaerexochus parvus was named by Billings (1865) [Holotype apparently lost; Shaw and Bolton designate GSC 88624 as provisional lectotype.]. Its type specimen is GSC 1330 and is a 3D body fossil.
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
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1865 | Sphaerexochus parvus Billings |
1925 | Sphaerexochus parvus Raymond p. 1489 figs. Plate 10, fig. 5 |
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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.
†Sphaerexochus parvus Billings 1865
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: g = genus, f = family, c = class | |||||
References: Aberhan et al. 2004, Hendy 2009, Harrington et al. 1959 |
Age range: Whiterockian or 470.00000 to 457.30000 Ma
Collections (19 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Chazyan | USA (New York) | Sphaerexochus parvus (56184 56212 56215 171704 172310 172317 172318 172320 172322 172323 172328 172329) | |
Whiterockian | Canada (Quebec) | Sphaerexochus parvus (111361 111363 111431 111432 111441 111461 111464) |