Comparative assessment of the ischial morphology of Victoriapithecus macinnesi
Bibliographic Data
| ID | 8320616 |
|---|---|
| Authors | Monte L Mccrossin (University of California, Berkeley), Brenda R Benefit (Southern Illinois University Carbondale, corresponding author) |
| Year | 1992 |
| Volume | 87 |
| Issue | 3 |
| Pages | 277-290 |
| Publication date | 1992-03-01 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | American Journal of Physical Anthropology (JOURNAL) |
| Journal identifiers | ISSN: 0002-9483 • E-ISSN: 1096-8644 |
| Publisher | Wiley (PUBLISHER • GB) |
| DOI | 10.1002/ajpa.1330870305 |
| OpenAlex | W1964484727 |
| Language | EN |
| Citations received | 16 |
| References cited | 39 |
An almost complete primate ischium was recovered from middle Miocene (ca. 15 ma) deposits of Maboko Island (Kenya) in 1987. The specimen shows numerous similarities to the ischial morphology of extant cercopithecids and is attributed to Victoriapithecus macinnesi (Von Koenigswald, 1969), the early Old World monkey best known from Maboko Island. The Victoriapithecus ischium provides the first evidence of early Old World monkey pelvic girdle anatomy. The ischium is characterized by an obliquely oriented and broadly flaring tuberosity, a relatively small acetabulum with little ventrally directed curvature of its caudal portion, a long ischial body and a flange‐like ischial spine positioned caudal to the rim of the acetabulum. In these features, Victoriapithecus most closely resembles the vervet monkey, Cercopithecus aethiops . The fossil specimen indicates that Victoriapithecus possessed ischial callosities, a mobile tail and adaptations for (possibly cursorial) quadrupedalism with an adducted posture of the thigh. The occurrence of ischial callosities in Victoriapithecus extends the documented antiquity of this feature in catarrhines by more than 12 million years and shows that the distinctive “sitting‐sleeping” adaptations of Old World monkeys (Washburn, 1957) originated prior to the divergence of Colobinae and Cercopithecinae. Differences of developmental sequence and tissue composition indicate that the ischial pads of cercopithecids, hylobatids, and pongids may have arisen independently, through parallel evolution. Contrary to Strasser and Delson (1987), discontinuity of ischial callosities was probably the primitive condition for male cercopithecids
Biology · Cursorial · Ischial tuberosity · Ischium · Manus · Pelvis · Anatomy · Animal Vocal Communication and Behavior · Bat Biology and Ecology Studies · Medicine · Paleontology · Primate Behavior and Ecology
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| Unique citing works | 16 |
|---|---|
| Citations per year | 0,47 |
| Citation span | 1992 - 2026 (35) |
| Citation velocity | current |
| Highly cited | No |
| Citation types | Neutral: 14 |