Eucynodont teeth from the Late Triassic of Krasiejów, Southern Poland. (2nd December 2021)

• Record Type: Journal Article
• Authors: Sulej, Tomasz; Kowalski, Jakub; Bodzioch, Adam; Hara, Ewa
• Is Part Of: Historical biology. Volume 33:Number 12(2021)
• Page Start: 3633
• Page End: 3640
• Publication Date: 2021-12-02
• Subjects: Synapsids -- mammals origin -- Late Triassic -- sclerobiont -- heterochrony; Paleobiology -- Periodicals; Biology -- Periodicals; Evolution -- Periodicals; Paleontology -- Periodicals; Biology -- Periodicals; Paleontology -- Periodicals; Evolution -- Periodicals; 560.5
• DOI: 10.1080/08912963.2021.1881958
• Languages: English
• ISSNs: 0891-2963

Abstract

ABSTRACT: Recent discoveries of Mammaliamorph teeth in the Keuper of southern Poland have extended the global record of eucynodonts in the Late Triassic and revealed a significant diversity of the group at that time. Here, we expand on this record with the description of new cynodont postcanine teeth from the Krasiejów bone bed. They show the dental morphology typical for Dromatheriidae, with a single root and crown without cingulum. We assigned them to Polonodon woznikensis, described from Woźniki. None of the 38 teeth from Krasiejów and Woźniki exhibit signs of serious wear, potentially indicating a very fast rate of tooth replacement in Polonodon .