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Arnioceras robustum
Taxonomy
Ammonites robustus was named by Quenstedt (1884) [Ammonites falcaries robustus].
It was recombined as Arnioceras robustum by Wang and Smith (1986).
It was recombined as Arnioceras robustum by Wang and Smith (1986).
Sister species lacking formal opinion data
A. acuticarinatum, A. anageneticum, A. angusticostatum, A. angusticostatus, A. bucklandi, A. carenatum, A. crassicosta, A. densicosta, A. dimorphum, A. falcaries, A. flavum, A. hartmani, A. hartmanni, A. kridioides, A. kridion, A. laevissimum, A. nigrum, A. nodulosum, A. obliquecostatum, A. oppeli, A. paucicostatum, A. repens, A. semicostatoides, A. speciosurn, A. speciusum, A. spirale, A. sulcatum
Synonymy list
| Year | Name and author |
|---|---|
| 1884 | Ammonites robustus Quenstedt figs. Pl 13, fig 22 |
| 1986 | Arnioceras robustum Wang and Smith p. 1080 figs. 4.4, 4.5 |
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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.
†Arnioceras robustum Quenstedt 1884
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| shell height | 1 | 14.0 | |||||
| shell diameter | 1 | 61.0 | |||||
| shell inflation | 1 | 34.0 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: Early/Lower Sinemurian or 199.50000 to 192.90000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Sinemurian | France (Bourgogne-Franche-Comté) | Arnioceras robustum (234373) | |
| Early/Lower Sinemurian | Chile | Arnioceras robustum (210171) | |
| Obtusum | China (Guangdong) | Arnioceras robustum (7785) |