Isectolophus (mammalia, perissodactyla) from the eocene of the Zaysan Basin, Kazakstan and its biochronological significance

Spencer G. Lucas, Luke Holbrook, Robert J. Emry

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9 Scopus citations

Abstract

We describe a skull and fragments of lower jaws of a ceratomorph perissodactyl from the Arshantan (Eocene) strata of the Zaysan Basin, eastern Kazakstan, and refer these specimens to Isectolophus latidens (Osborn, Scott, and Speir, 1878). The material from the Zaysan Basin is indistinguishable from the holotypes of Isectolophus bogdulensis Reshetov from Mongolia and Homogalax reliquius Qi from China. These two species are junior subjective synonyms of I. latidens. The presence of I. latidens, known also from Bridgerian strata of North America, in Asian deposits of Arshantan age provides further support for a correlation between the Arshantan and the Bridgerian land-mammal “ages”.

Original languageEnglish (US)
Pages (from-to)238-243
Number of pages6
JournalJournal of Vertebrate Paleontology
Volume23
Issue number1
DOIs
StatePublished - Jan 1 2003

All Science Journal Classification (ASJC) codes

  • Palaeontology

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