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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Xenoloboceras
Taxonomy
Xenoloboceras was named by Bilotta (2010). It is not extant.
It was assigned to Aequiloboidea by Bilotta (2010).
It was assigned to Aequiloboidea by Bilotta (2010).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2010 | Xenoloboceras Bilotta p. 590 |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. Bilotta 2010 | Compressed platycone shell, with very evolute
inner whorls and moderately evolute outer whorls. The whorl overlapping is always small. Sub-elliptic whorl section, higher than wide, with nearly straight sides and slightly rounded ventral area. The phragmocone is completely smooth, whereas the body chamber shows biconcave constrictions involving the outermost part of the flank and the ventral area, clearly visible only on internal moulds. When the test is preserved, sinuous striae more accentuated on the venter can be noted as well. (Pseudo)ceratitic suture, with E lobe greatly shifted from the middle of the whorl and as large as L, which is slightly longer than U2; LS1 saddle usually less advanced than ES. |
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: base of the Rhaetian to the top of the Early/Lower Hettangian or 205.70000 to 199.50000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Rhaetian - Early/Lower Hettangian | Italy (L'Aquila) | X. micromorphum (233993) |