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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Cirsocerithium agriorivensis
Taxonomy
Cirsocerithium agriorivensis was named by Cataldo (2017). Its type specimen is CPBA 21801.1, a shell, and it is a 3D body fossil. Its type locality is Bajada Vieja (La Tosca Member, Huitrin Formation), which is in a Barremian shallow subtidal limestone/wackestone in the Huitrin Formation of Argentina.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2017 | Cirsocerithium agriorivensis Cataldo p. 420 figs. 5.7, 5.9–12 |
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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.
†Cirsocerithium agriorivensis Cataldo 2017
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. S. Cataldo 2017 | Cirsocerithium with convex whorl profile, sharp orthocline collabral ribs, four spiral cords, no subsutural cord and secondary threads, and with faint swellings on the ribs instead of pointy nodes |
Measurements
No measurements are available
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| Source: superf = superfamily, c = class | |||||
| References: Hendy et al. 2009, Kiessling 2004 | |||||
Age range: base of the Early/Lower Hauterivian to the top of the Barremian or 136.40000 to 125.00000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Hauterivian | Argentina (Neuquen) | Cirsocerithium agriorivensis (50187) | |
| Barremian | Argentina | Cirsocerithium agriorivensis (type locality: 114202) |