| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Onoba (Onoba) obessa
Taxonomy
Subonoba (Austronoba) obessa was named by Grant-Mackie and Chapman-Smith (1971). Its type specimen is G5891, a shell, and it is a 3D body fossil. Its type locality is N62/f585 Te Piki, Cape Runaway, which is in a Castlecliffian coastal mudstone in the Waipaoa Formation of New Zealand.
It was recombined as Onoba (Onoba) obessa by Beu et al. (1990).
It was recombined as Onoba (Onoba) obessa by Beu et al. (1990).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1971 | Subonoba (Austronoba) obessa Grant-Mackie and Chapman-Smith pp. 665 - 666 figs. 5, No. 11 |
| 1990 | Onoba (Onoba) obessa Beu et al. p. 429 |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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.
†Onoba (Onoba) obessa Grant-Mackie and Chapman-Smith 1971
show all | hide all
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. A. Grant-Mackie and M. Chapman-Smith 1971 | Shell very small, elongate-turbinate, anompha~ous, sculptured with strong, axial ribs and much finer, closely spaced spiral threads. Protoconch sharply delineated from first neanic whorl by low narrow varix and step down to neanic whorl; of Ii broadly convex, spirally striated whorls; nucleus large, broad, domeshaped, papillate and central; succeeded by 2t convex loosely-coiled, post-embryonic whorls. Axial ribs which evanesce at periphery of body-whorl, are strong, compressed, about 1/3 as wide as interspaces, oblique, and shallowly concave towards aperture; 15 axials on penultimate whorl, 16 on body-whorl. Spiral sculpture of numerous, very fine, closely spaced threads present between axial ribs and continuous over periphery and base of body-whorl. Body-whorl capacious, over i shell-height, inflated, regularly and strongly convex; aperture fusiform, slightly less than half shell-height; outer lip thin, sharply and narrowly angled posteriorly; basal lip notched, narrowly rounded ; columella short, stout, nearly vertical; parietal callus absent. |
Measurements
No measurements are available
|
|
||||
|
|||||
|
|
||||
|
|
||||
| Source: f = family, c = class | |||||
| References: Kiessling 2004, Hendy et al. 2009 | |||||
Age range: Castlecliffian or 1.63000 to 0.34000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Castlecliffian | New Zealand | Subonoba obessa (type locality: 178191) |