DENTAL ANOMALY IN  HAPALODECTES DUX  (HAPALODECTIDAE, MESONYCHIA) FROM THE LATE PALEOCENE OF MONGOLIA

A. V. Lopatin; Лопатин А. В.

doi:10.31857/S2686738923700361

DENTAL ANOMALY IN HAPALODECTES DUX (HAPALODECTIDAE, MESONYCHIA) FROM THE LATE PALEOCENE OF MONGOLIA

Авторлар: Lopatin A.¹
Мекемелер:
1. Borissiak Paleontological Institute, Russian Academy of Sciences
Шығарылым: Том 512, № 1 (2023)
Беттер: 474-479
Бөлім: Articles
URL: https://journals.rcsi.science/2686-7389/article/view/140860
DOI: https://doi.org/10.31857/S2686738923700361
EDN: https://elibrary.ru/SRNBWU
ID: 140860

Дәйексөз келтіру

Толық мәтін

Ашық рұқсат
Рұқсат жабық

Рұқсат берілді
Рұқсат жабық

Тек жазылушылар үшін

Аннотация
Авторлар туралы
Әдебиет тізімі
Қосымша файлдар
Статистика

Аннотация

The holotype of Hapalodectes dux Lopatin, 2001 from the Upper Paleocene of Mongolia (Tsagan-Khushu locality, Naran Bulak Formation, Zhigden Member) is a lower jaw with complete dentition, showing healed alveoli in place of the right P₃. Examination of the holotype using X-ray microtomography revealed a rare dental anomaly previously unknown in fossil mammals, namely the presence of the inverted (positioned upside down and rotated lingual side labially) impacted premolar inside the dentary. The cause of this anomaly may be an aberration of a tooth bud location or an injury.

Негізгі сөздер

Hapalodectes, Mesonychia, Paleocene, Mongolia, mandible, computed tomography, failure of tooth eruption, impaction, inversion, ectopy, heterotopy

Авторлар туралы

A. Lopatin

Borissiak Paleontological Institute, Russian Academy of Sciences

Хат алмасуға жауапты Автор.
Email: alopat@paleo.ru
Russian Federation, Moscow

Әдебиет тізімі

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