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Napaisaurus guangxiensis
Taxonomy
Napaisaurus guangxiensis was named by Ji and Zhang (2022). Its type specimen is FS-20-008, FS-20-07, a set of postcrania (R ilium and ischium), and it is a 3D body fossil. Its type locality is North Fossil Point, Xiamiaotun, which is in an Aptian terrestrial horizon in the Xinlong Formation of China. It is the type species of Napaisaurus.
Synonymy list
| Year | Name and author |
|---|---|
| 2022 | Napaisaurus guangxiensis Ji and Zhang p. 3 |
| 2023 | Napaisaurus guangxiensis Manitkoon et al. p. 14 |
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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.
†Napaisaurus guangxiensis Ji and Zhang 2022
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| S.-a. Ji and P. Zhang 2022 | [The new genus is distinguished from other genera and species of basal iguanodontians by the combination of the following features (the ones marked with * are unique features): the acetabular protrusion of the ilium strongly bends to the abdomen and slightly bends to the side, the pubic bone The shank is very long and extends in the same direction as the acetabular protrusion, making the anterior acetabular recess narrow and deep; the ratio of the depth to length of the iliac bone is about 1, and the length of the acetabular posterior protrusion is 0.7 of the length of the iliac bone ; The superior acetabular process is enlarged, and its front-to-back length accounts for the first half of the total length of the acetabular protrusion; the side view of the end of the acetabular protrusion presents a sharp angle, which is located between the horizontal extension line of the abdominal border of the base of the acetabular protrusion Above; the posterior part of the acetabular kyphosis expands significantly laterally to the medial side, forming a short and wide short plate on the ventral surface; the articular surface of the ischial manubrium is wide, and the surface is concave*. The ilium handle of the ischia is significantly thickened toward the end in the transverse direction, and the articular surface of the end is strongly protruding*; the ischial obturator process is developed, the protruding direction is perpendicular to the ischial shaft and its end is slightly enlarged, and the obturator groove is narrow.] |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| References: Marsh 1875, Benton 1983 | |||||