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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Olcostephanus (Jeannoticeras) agrioensis
Taxonomy
Olcostephanus (Jeannoticeras) agrioensis was named by Aguirre-Urreta and Rawson (2001). Its type specimen is CPBA 19247, a shell, and it is a 3D body fossil. Its type locality is Agrio del Medio, Agrio Formation, O. (O.) laticosta subzone, Neuquén Basin, which is in a Hauterivian transition zone/lower shoreface shale/siltstone in the Agrio Formation of Argentina.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2001 | Olcostephanus (Jeannoticeras) agrioensis Aguirre-Urreta and Rawson p. 775 figs. 4a-h, 5d,e |
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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.
†Olcostephanus (Jeannoticeras) agrioensis Aguirre-Urreta and Rawson 2001
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 4 | 14.0 | 11.1 | 23.2 | 12.3 | 5.68 | |
| shell diameter | 4 | 35.3 | 27.3 | 56.0 | 32.0 | 13.1 | |
| shell inflation | 4 | 10.6 | 8.40 | 17.0 | 9.35 | 4.05 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Early/Lower Hauterivian or 136.40000 to 130.00000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Hauterivian | Argentina | Olcostephanus agrioensis (61701 61703 61705 type locality: 61713) |