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Taxonomy
Builstynia fontana was named by Ziegler et al. (2007). Its type specimen is NHMW 2006z0054/0001, a mandible (dext. with a1, p4 and m1), and it is not a trace fossil. Its type locality is Builstyn Khudag, section BUK-A, layer 12 &14, which is in a Miocene dry floodplain sandstone/mudstone in the Loh Formation of Mongolia. It is the type species of Builstynia.
Synonymy list
Year | Name and author |
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2007 | Builstynia fontana Ziegler et al. p. 138 figs. Fig. 26/6 |
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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.
†Builstynia fontana Ziegler et al. 2007
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Diagnosis
Reference | Diagnosis | |
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R. Ziegler et al. 2007 | I sup. not fissident; upper molars broad with strongly emarginated distal margin and relatively narrow hypoconal flange, distal cingulum interrupted at the deepest point of the distal emargination; i inf. bicuspulate; a1 reduced in size as compared to p4, m1-2 relatively broad with shallow hypoflexid, relatively short talonid, weak entoconid and low or moderate entocristid; labial basis of m1 strongly inclined disto-ventrally in labial view; m3 talonid reduced in size and morphology; condylus with narrow and high interarticular area and broad lower articular facet (in lingual view ending in line with distal margin of internal temporal fossa). Coronoid process somewhat tilted laterally, condylus medially. |