Nikolai Spassov

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BACKGROUND Reliable taxonomy underpins communication in all of biology, not least nature conservation and sustainable use of ecosystem resources. The flexibility of taxonomic interpretations, however, presents a serious challenge for end-users of taxonomic concepts. Users need standardised and continuously harmonised taxonomic reference systems, as well as(More)
We describe here a new species of the bovid Criotherium, from the late Miocene of Bulgaria. The genus was previously known to definitely occur only in Samos (Greece) and Kemiklitepe (Western Turkey), with the single species C. argalioides. The new species, C. nikolovi, is more primitive than the latter, although both are probably contemporaneous, suggesting(More)
The steppe polecat Mustela eversmanii is a medium-sized mustelid species whose European population has significantly declined over the past century. However, due to the lack of systematic surveys, little is known about its status and distribution. In this paper, we review the current distribution, habitat associations, and population trends of steppe(More)
A well-preserved felid skull from the Turolian (late Miocene) of Karaslari (FY Republic of Macedonia) is described and assigned to a new taxon, Yoshi garevskii, gen. et sp. nov. The new genus Yoshi is characterized by a round, short, and deep skull, and short canines that are somewhat transversely compressed but are not serrated. We assign to the same genus(More)
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