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Hoplichnus quadrupedans
Taxonomy
Hoplichnus quadrupedans was named by Hitchcock (1848). It is considered to be a form taxon. Its type specimen is AC 29/3, a footprint, and it is a trace fossil. Its type locality is below Turners Falls, tracksite, which is in a Hettangian/Sinemurian fluvial-lacustrine sandstone/shale in the Portland Formation of Massachusetts. It is the type species of Hoplichnus.
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1848 | Hoplichnus quadrupedans Hitchcock p. 230 figs. Pl. 16:7-8 |
| 1858 | Hoplichnus poledrus Hitchcock p. 134 |
| 1871 | Hoplichnus poledrus Hitchcock p. xxi |
| 1889 | Hoplichnus poledrus Hitchcock p. 119 |
| 1894 | Hoplichnus poledrus Lyman p. 206 |
| 1902 | Hoplichnus quadrupedans Hay p. 546 |
| 1904 | Hoplichnus quadrupedans Lull p. 541 |
| 1930 | Hoplichnus quadrupedans Hay p. 14 |
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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.
†Hoplichnus quadrupedans Hitchcock 1848
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Invalid names: Hoplichnus poledrus Hitchcock 1858 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: subp = subphylum, p = phylum | |||||
| References: Carroll 1988, Kiessling 2004 | |||||
Age range: base of the Hettangian to the top of the Sinemurian or 201.30000 to 190.80000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Hettangian - Sinemurian | USA (Massachusetts) | Hoplichnus poledrus (52998) Hoplichnus quadrupedans (type locality: 52996) |