2 documents found, page 1 of 1
Placentation in the Amazonian manatee (Trichechus inunguis)
Carter, Anthony M.; Miglino, Maria Angelica; Ambrósio, Carlos Eduardo; dos Santos, Tatiana Carlesco; Weber Rosas, Fernando CesarEvidence from several sources supports a close phylogenetic relationship between elephants and sirenians. To explore whether this was reflected in similar placentation, we examined eight delivered placentae from the Amazonian manatee using light microscopy and immunohistochemistry. In addition, the fetal placental circulation was described by scanning electron microscopy of vessel casts. The manatee placenta wa...
Placentation in dolphins from the Amazon River Basin: The Boto, Inia geoffrensi...
Silva, Vera Maria Ferreira da; Carter, Anthony M.; Ambrósio, Carlos Eduardo; Carvalho, Ana Flávia de; Bonatelli, Marina; Lima, Marcelo CardosoA recent reassessment of the phylogenetic affinities of cetaceans makes it timely to compare their placentation with that of the artiodactyls. We studied the placentae of two sympatric species of dolphin from the Amazon River Basin, representing two distinct families. The umbilical cord branched to supply a bilobed allantoic sac. Small blood vessels and smooth muscle bundles were found within the stroma of the ...