New Fossils of Giraffokeryx (Mammalia: Cetartiodactyla: Giraffidae) from Chinji Formation, Pakistan

This paper describes new fossils of Giraffokeryx originating from the Chinji Formation of northern Pakistan. The fossils, representing worth describing hemimandibles, are collected from the Middle Miocene outcrops of the Chakwal district, Punjab, Pakistan. A detailed description of the newly discovered fossils is being provided. The Chinji sample adds new information on the anatomical morphology […]

Old world ruminant morphophysiology, life history, and fossil record: exploring key innovations of a diversification sequence

The omasum of pecoran ruminants (which is absent in tragulids) and shorter gestation periods in non-giraffid crown pecorans (as opposed to giraffids) could represent cases of key innovations that caused disparity in species diversity in extant ruminants. Literature suggests that the different ruminant groups inhabited similar niche spectra at different times, supporting the ‘increased fitness’ […]

Chapter 14: Giraffidae

792 specimens attributed to the Giraffidae were recovered by the Eyasi Plateau Paleontological Expedition (EPPE) from the three Pliocene stratigraphic units at Laetoli, with Giraffa stillei the most common taxon in all three levels. Giraffids are notably well represented in the Upper Laetolil Beds, with further evidence gathered by EPPE for the three previously recognized […]

Suidae, Tragulidae, Giraffidae, and Bovidae

The upper Miocene vertebrate locality of Küçükçekmece West, European Turkey, had provided an artiodactyl assemblage that is rich in species but poor in specimens. The present study allows revising previous artiodactyl lists provided for this site, by recognizing Hippopotamodon cf. antiquus, Dorcatherium maliki n. sp., Palaeotragus sp. (large size), Palaeogiraffa pamiri (Ozansoy, 1965), Bohlinia cf. […]

The giraffe’s neck: another icon of evolution falls

The giraffe is a major problem for Darwinism for many reasons. No evidence exists in the fossil record for giraffe evolution, nor are evolutionists able to explain why the giraffe’s neck evolved. The most common Darwinian explanation for giraffe neck evolution—the advantage a long neck gave in reaching leaves high in trees for food—is now […]

Giraffokeryx (Artiodactyla: Mammalia) Remains From the Lower Siwaliks of Pakistan

Giraffokeryx is represented in the middle Miocene vertebrate assemblage from the Chinji Formation by 13 remains. The material comprises predominantly isolated teeth, and a few fragments of maxilla and mandible. The well preserved upper and lower dentition allows recognizing the presence of Giraffokeryx cf. punjabiensis in the Chinji Formation of the Lower Siwaliks. A detailed […]

The cervical anatomy of Samotherium, an intermediate-necked giraffid

Giraffidae are represented by many extinct species. The only two extant taxa possess diametrically contrasting cervical morphology, as the okapi is short-necked and the giraffe is exceptionally long-necked. Samotherium major, known from the Late Miocene of Samos in Greece and other Eurasian localities, is a key extinct giraffid; it possesses cervical vertebrae that are intermediate […]

Fossil evidence and stages of elongation of the Giraffa camelopardalis neck

Several evolutionary theories have been proposed to explain the adaptation of the long giraffe neck; however, few studies examine the fossil cervical vertebrae. We incorporate extinct giraffids, and the okapi and giraffe cervical vertebral specimens in a comprehensive analysis of the anatomy and elongation of the neck. We establish and evaluate 20 character states that […]