Publication details
Mikrostruktura klů chobotnatců na příkladu rodu Zygolophodon Vacek, 1977
| Title in English | Using tusk microstructure in the Neogene Proboscidea the example of the genus Zogolophodon Vacek, 1977 |
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| Authors | |
| Year of publication | 2012 |
| Type | Article in Proceedings |
| Conference | Studentská geologická konference 2012 sborník abstraktů |
| MU Faculty or unit | |
| Citation | |
| Field | Geology and mineralogy |
| Keywords | Zygolophodon; Proboscidea; tusk; Schreger pattern; Vienna Basin; Mikulov |
| Description | The study of the proboscidean tusk microstructure brings a lot of information. While the research in the dentinal growth increments can get information about individuals, paleoclimate and paleoenvironment (Fisher, 1990; Fox 2000, 2004), research of the dentinal tubules and the so called Schreger pattern that is unique feature of the proboscidean tusks is a suitable method to distinguish proboscidean taxa (Espinoza a Mann, 1993; Palombo a Villa, 2001; Trapani a Fisher, 2003). Studied tusks belong to genus Zygolophodon turicensis and come from the badenian sands which are deposited east of town Mikulov and belong to the Viena basin. From the studied tusks were made thin sections and angles of crossing Schreger lines were measured. Schreger pattern is currently been explored on small number of taxa and genus Zygolophodon has not yet been studied. On the thin sections was identified only type of qualitative Schreger pattern known as „V“. A negligible difference between the concave and the convex Schreger angles which was found in some taxa before (Espinoza, 1993) was confirm. Values of angles near the tusk surface was 53-85 degrees with an average of 66 +/- 6 degrees. The values of all angles were within the same range as near tusk surface, with an average of 67 +- 6. The results were compared with other proboscidean taxa. |