DEVONIAN FISHES FOR THE AMERICAN MUSEUM

Fossil Fishes (Arthrodira and Acanthodida) from the Upper Devonian Chadakoin Formation of Erie County, Pennsylvania

Several fossil fish were discovered in 1994 in the Upper Devonian Chadakoin Formation, near Howard Falls, just outside of Edinboro, Erie County, Pennsylvania. These fossils are fragmentary in nature and have been described based on their morphology. They are identified as the median dorsal plate of the large arthrodire Dunkleosteus terrelli Newberry, 1873, and the spines of probable acanthodian...

The Bulletin of the American Museum of Natural History.

XTAMERICAN MUSEUM Novitates PUBLISHED BY THE AMERICAN MUSEUM OF NATURAL HISTORY CENTRAL PARK WEST AT 79TH

Noronhomys vespuccii, a new genus and species (Muridae: Sigmodontinae), is described from Ilha Fernando de Noronha, a small volcanic island located 345 km northeast of Cabo de Sao Roque, Brazil. The abundant cranial and postcranial material of the fossil rodent was recovered from old beach dunes that are late Quaternary in age (probably late Holocene). Noronhomys vespuccii retains incomplete me...

^yAMERICAN MUSEUM ISovitates PUBLISHED BY THE AMERICAN MUSEUM OF NATURAL HISTORY CENTRAL PARK WEST AT 79TH

A new Early Miocene iguanian lizard from New Mexico is described. This specimen is the oldest demonstrable member of the iguanine clade as determined by its possession of derived characters of Iguaninae as a whole and those of its two primary subclades. The phylogenetic relationships among iguanines are reevaluated with the inclusion of this and another recently described fossil iguanine. The f...

Historical biogeography of South American freshwater fishes

Dealing with complex palaeogeographical histories is a problem of major importance in biogeographical studies. Since the superposition of palaeogeographical events may produce multiple changes in species range distributions, highly complex patterns of animal and plant distributions are to be expected (Nelson & Platnick, 1981; Brown & Gibson, 1983; Myers & Institut de Recherche pour le Développe...