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Kentriodon nakajimai
Taxonomy
Kentriodon nakajimai was named by Kimura and Hasegawa (2019). Its type specimen is GMNH-PV-3244, a skull (nearly complete cranium, only lacking the anterior part of the rostrum, left nasal, and ear bones), and it is a 3D body fossil. Its type locality is Usui River, which is in a Tortonian marine horizon in the Haraichi Formation of Japan.
Synonymy list
| Year | Name and author |
|---|---|
| 2019 | Kentriodon nakajimai Kimura and Hasegawa |
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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.
†Kentriodon nakajimai Kimura and Hasegawa 2019
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| T. Kimura and Y. Hasegawa 2019 | A species of Kentriodon differing from other species of this genus by having a greatly enlarged fossa for the preorbital lobe of the pterygoid sinus, and a distinct maxillary crest that is more salient on the right than on the left; from K. hobetsu, K. obscurus, and K. schneideri by having a deeper antorbital notch; from K. hobetsu, K. pernix, and K. schneideri by having a fossa for the pterygoid sinus elongated far anterior to the level of the antorbital notch; from K. diusinus and K. schneideri by having a narrower mesorostral groove just anterior to the external bony nares, and a slender and dorsovent- rally narrower zygomatic process of the squamosal; from K. hobetsu by having the lateral edge of the premaxilla posterior to the level of the premaxillary fossa less convex dorsally, and the shape of the anterior end of the pterygoid sinus fossa pointed rather than rounded; from K. hoepfneri and K. pernix by having a triangular outline of the nasal bone, and frontals that extend anteriorly between the nasals; from K. hoepfneri by lacking ante- romedially globular nasal bones; and from K. fuchsii by lacking a strong lateral tuberosity of the periotic. |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| Reference: Uhen 2004 | |||||