The Journal of Animal & Plant Sciences 19(4): 2009, Pages: 224-229 ISSN: 1018-7081 MAMMALIAN REMAINS IN THE CHINJI TYPE LOCALITY OF THE CHINJI FORMATION: A NEW COLLECTION M. A. Khan, M. Malik, A. M. Khan * M. Iqbal ** , and M. Akhtar * Zoology Department, GC University, Faisalabad, Pakistan * Zoology Department, Punjab University, Lahore, Pakistan ** Zoology Department, Govt. College of Science, Wahdat road Lahore, Pakistan Correspondence author email: akbaar111@yahoo.ca ABSTRACT Seven mammalian fossils specimens of varying preservation states are described and discussed. The recovered remains include the upper and the lower dentition, and derive mostly from the flood plain channel deposits. The systematics of the rare findings Elachistocerus sp., Gazella sp. and Miotragocerus sp. are also discussed in here. Listriodon cf. pentapotamiae is also recovered from the middle Miocene of the Chinji type locality and consequently discussed in this paper. The aim of the paper is to describe poorly documented Middle Miocene mammalian species. Key words: Bovids, Elachistocerus, Gazella, Listriodon, Miotragocerus, Mammalian fossils, Chinji Formation. INTRODUCTION The identified taxa are recovered in the type locality outcrops of the Chinji village (Lower Siwaliks), district Chakwal, Punjab, Pakistan. The new material is housed in the Palaeontology Laboratory of the Zoology Department, GC University Faisalabad (institutional abbreviation PC-GCUF) and some specimens are housed in the Palaeontology Laboratory of the Punjab University (institutional abbreviation PUPC) are also included in this study. The catalogue number of the specimens consists of series i.e. yearly catalogue number and serially catalogue number, so figures of the specimen represent the collection year (numerator) and the serial number (denominator) of that year (e.g., 08/21). Measurements are in millimeters with length being the maximum dimension parallel to the mesiodistal axis of the tooth, trigonid width the maximum through the protoconid and the metaconid perpendicular to the mesiodistal axis, and talonid width the maximum through the hypoconid and the entoconid perpendicular to the mesiodistal axis. Capital letters indicate dentition with superscript numbers for the upper dentition and subscript for the lower dentition. The terminology of the tooth crown elements and manners of measurements follow Gentry (1994) and Pickford (1988). Systematic Palaeontology Order Artiodactyla Owen, 1848 Family Bovidae Gray, 1821 Subfamily Bovinae Gray, 1821 Tribe Boselaphini Knottnerus-Meyer, 1907 Genus Elachistoceras Thomas, 1977 cf. Elachistoceras khauristanensis Thomas, 1977: Abbreviated Diagnosis: Bovid of very small size, close to that of Steenbok (Raphicerus campestris). Rectilinear horn cores of very small dimensions, has oval section. These teeth are typical among that of Boselaphini. Compared with the lower teeth of Tetracerus quadricornis, it is noted that the morphological characteristics are: Molars rather brachydonts, definitely convex lingual wall; Non smooth lingual wall (being distinguished by from Neotragini); Enamel rugosed; Presence of a weak caprine fold (or antero-stylid), less developed lingual furrows distinguished from Cephalophinae (Thomas, 1977). Referred Material: PUPC 97/18 – left mendibular fragment with M 3 ; PUPC 97/19 – right mandibular fragment with M 1 -M 3 . Description: PUPC 97/18 (Fig. 1) comprises the lower third molar (M 3 ) with broken second molar (M 2 ). The roots of the second molar are preserved. The length of the mandibular ramus is 28.2 mm. The third left molar is in an excellent state of preservation and in middle wear. The enamel is rugose and the rugosity is more evident on the lingual side than the buccal side. The apices of the paraconid and the metaconid are sharp and the metaconid noticeably smaller and lower than the protoconid. The paraconid bears very sharp and distinct vertical crest extending along the anterolingual edge. A well developed hypoconulid is present posteriorly. The talonid is sharp, spine like having a closed fossette. PUPC 97/19 (Fig. 2) is in early wear and the length of mandibular ramus is 35.6 mm. The metaconids of the first and the second molars are damaged. The protoconid is well developed and projected. Ectostylid is present in the transverse valley. The apices of the conids are somewhat conical. The enamel is rugose equally on 224