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Iani smithi
Taxonomy
Iani smithi was named by Zanno et al. (2023). Its type specimen is NCSM 29373, a partial skeleton, and it is a 3D body fossil. Its type locality is Fortunate Son (NCPALEOUT14), which is in a Cenomanian estuary/bay mudstone in the Cedar Mountain Formation of Utah. It is the type species of Iani.
Synonymy list
| Year | Name and author |
|---|---|
| 2023 | Iani smithi Zanno et al. p. 6 |
| 2025 | Iani smithi Czepiński and Madzia p. 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.
†Iani smithi Zanno et al. 2023
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. E. Zanno et al. 2023 | Skeletally immature non-dryomorphan ornithopod differentiated by the following combination of characters (autapomorphies denoted with asterisk): three premaxillary teeth*; distinct oval fossa on the caudomedial aspect of premaxillary lateral process*; caudalmost margin of prefrontal facet on frontal tapering and centered between interfrontal suture and orbital rim (shared with Convolosaurus); hatchet shaped postorbital facet on frontal with rostrally convex caudal and straight rostral margins*; posttemporal foramen housed entirely in squamosal (shared with Zalmoxes); robust tab extending from the caudal aspect of the squamosal into concavity on the paroccipital process near its base (shared with Te. tilletti); distinct, triangular caudomedial prong projecting off the caudal aspect of the palatine that, along with the maxilla, forms part of the lateral margin of the postpalatine foramen*; distinct u-shaped notch in ectopterygoid between the palatine and jugal process forming part of the caudal, medial, and lateral margins of the postpalatine (suborbital) foramen*; basioccipital with sharp midline lamina bordered contralaterally by two basioccipital foramina housed entirely within a depressed fossa on the rostroventral surface*; caudally projecting conical tubercle on midline of rostroventralmost tip of basioccipital*; angular occipital condyle on basioccipital with flattened ventral and caudal aspects, and a sharp, rostrally projecting lip, which together with the caudally projecting tubercle on the rostral basioccipital forms a nearly enclosed, fish-hook shaped profile of the caudoventral perimeter in lateral view*. |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| References: Benton 1983, Kiessling 2004, Marsh 1875 | |||||
Age range: Early/Lower Cenomanian or 100.50000 to 93.90000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Cenomanian | USA (Utah) | Ornithopoda indet. (type locality: 228452) |