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A roe deer from the Pliocene of Hidalgo, central Mexico

100%

Jimenez-Hidalgo E., Bravo-Cuevas V. M.

Acta Palaeontologica Polonica

2015

tom 60

nr 4

Mexican Pliocene cervids are very poorly known. We report on new fossil material of the roe deer Capreolus constantini recovered from the Pliocene Atotonilco El Grande Formation of Santa Maria Amajac, Hidalgo (central Mexico). The specimens were collected from a series of layers of friable to moderately indurated polymictic conglomerate supported by a sandstone-tuffaceous-calcareous matrix. This species was formerly known only from the late Pliocene of Udunga, Russia, thus implying a dispersal event to North America around 4.0 Ma. This cervid is one of the very small number of mammals recorded from the poorly sampled Pliocene temperate deposits of Mexico.

Non-metric traits: remarks on sex dependence, age dependence, and on intercorrelations among characters

84%

Markowski J.

Acta Theriologica. Supplement

1995

nr 03

Interdependence among non-metric traits as well as their correlation with sex, age, and body size usually cause methodological problems in phenetic investigations. Based on data on four mammalian species (Microtus oeconomus, M. limnophilus, Lepus europaeus, Capreolus capreolus) studied by the author, and on data from the literature these problems were analyzed. Both the number and the coefficients of intercor- relations among traits were found to depend on sample sizes of individuals examined. They were larger in populations with progressive and faster body growth. The number of traits related to sex increased significantly with sex dimorphism across mammalian species. Age dependence of traits did not show a regular pattern within and among species. These results are discussed as to their implications for estimating morphological differentiation within and among populations.

Ograniczanie wyników

1 Acta Palaeontologica Polonica

1 Acta Theriologica. Supplement

1 Bravo-Cuevas V. M.

1 Jimenez-Hidalgo E.

1 Markowski J.

1 2015

1 1995

Wyniki wyszukiwania

A roe deer from the Pliocene of Hidalgo, central Mexico

Non-metric traits: remarks on sex dependence, age dependence, and on intercorrelations among characters