| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Sivorthis precordillerana
Taxonomy
Sivorthis precordillerana was named by Benedetto (2015). Its type specimen is CEGH-UNC 25808a, a valve, and it is a 3D body fossil. Its type locality is Cerro La Chilca Section Palaeoglossa–Chilcorthis Association, which is in a Darriwilian deep-water shale/marl in the Los Azules Formation of Argentina.
Synonymy list
| Year | Name and author |
|---|---|
| 2015 | Sivorthis precordillerana Benedetto pp. 89 - 90 figs. 5.14–23, 6.1–3 |
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.
†Sivorthis precordillerana Benedetto 2015
show all | hide all
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. L. Benedetto 2015 | Shell transversely semielliptical (ventral valve average length/width ratio 0.76), widest at hinge with orthogonal to slightly acute cardinal extremities. Ornament costellate (38–45 rounded ribs in mature shells). Ventral muscle field proportionally wide and short raised anteriorly. Vascula media initially adjacent then curved anterolaterally. |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|||||
|
|
||||
|
|
||||
| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: Darriwilian or 467.30000 to 458.40000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Darriwilian | Argentina (San Juan) | Sivorthis precordillerana (195043 type locality: 195044) |