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Robertinidae
Taxonomy
Robertinidae was named by Reuss (1850). It is extant. It was considered unknown by Loeblich and Tappan (1984).
It was assigned to Robertinoidea by Loeblich and Tappan (1984).
It was assigned to Robertinoidea by Loeblich and Tappan (1984).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1850 | Robertinidae Reuss |
| 1984 | Robertinidae Loeblich and Tappan p. 36 |
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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.
Fm. Robertinidae Reuss 1850
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. R. Loeblich and H. Tappan 1984 | Chambers coiled in low to high predominantly dextral trochospiral, or may be nearly planispiral; interior of chambers divided by double transverse partition resulting from infolding of wall, and forming small supplementary chambers on one or both sides of test, or with primary and secondary chambers in distinct series; aperture interiomarginal, elongate loop-shaped or with two diverging slits, or may have additional areal or sutural supplementary openings. L. Eocene to Holocene. |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| References: Loeblich and Tappan 1984, Kiessling 2004 | |||||
Age range
Maximum range based only on fossils: Late/Upper Pleistocene or 0.12900 to 0.01170 Ma
Minimum age of oldest fossil (stem group age): 0.0117 Ma
Minimum age of oldest fossil (stem group age): 0.0117 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Pleistocene | North Atlantic | Robertinoides spp. (264686) | |
| NN21 | North Atlantic | Robertinoides spp. (265658) | |
| Late/Upper Pleistocene | North Atlantic | Robertinoides spp. (262657 263768) |