Registered users receive a variety of benefits including the ability to customize email alerts, create favorite journals list, and save searches.
Please note that a BioOne web account does not automatically grant access to full-text content. An institutional or society member subscription is required to view non-Open Access content.
Contact firstname.lastname@example.org with any questions.
The Winthrop Flora is of middle to late Albian age (Early Cretaceous) and occurs in the Methow basin of north-central Washington State, USA. With an estimated diversity of more than 150 species, the Winthrop is the most diverse flora yet described from the Early Cretaceous of North America. This paper deals with the 38 species of gymnosperms or Pinophytina of the Winthrop Formation, consisting of three species of Pteridospermopsida, three of Cycadopsida, three of Ginkgoopsida, nine of Bennittopsida, 15 of conifers or Pinopsida, and five species whose assignment is uncertain below the level of the gymnosperms. We describe four new genera and 21 new species of Pinophytina. Overall, the gymnosperm component of the flora is concordant with that of other late Early Cretaceous floras of the Northern Hemisphere. However, several of its species are similar to those found in Jurassic sediments from Mexico and Central America and some of the cycadophytes and conifers have what we interpret as xeromorphic foliage.
Ornithological surveys of the Sipaliwini savanna, an Amazonian savanna enclave along the Suriname—Brazil border, were conducted in July 2006 and June 2007. Of the 148 species recorded, five are new for Suriname: Micropygia schomburgkii, Myiopagis vindicata, Sublegatus modestus, Neopelma pallescens and Neothraupis fasciata. Patterns of species-sharing are compared among the Sipaliwini, other Amazonian savanna enclaves, and the large savanna complexes of the Llanos and Cerrado. In the Sipaliwini, forest birds are a subset of the Guiana Shield avifauna, while openhabitat species are shared predominantly with the Cerrado. Furthermore, the Sipaliwini populations of Falco sparverius and Athene cunicularia are identified as belonging to Cerrado subspecies instead of those occurring in nearby Guyana. The results support the hypothesis that the Sipaliwini and Amapá savannas were once connected to the Cerrado, likely by a coastal corridor.
A new species of the commensal barnacle genus Stomatolepas has been collected from leatherback turtles in the southern Atlantic Ocean. It is described here as S. pilsbryin. sp. and compared to its congeners S. elegans (Costa, 1838) and S. praegustatorPilsbry, 1910. A neotype is also designated for S. elegans.
A new species of roughy in the genus Hoplostethus is described from a single specimen collected at depths of 648 to 660 m just east of the Calagua Islands off the east coast of Luzon Island, Philippines. It is characterized by extremely thick fin spines (greatest width of dorsal fin spines 17.4% to 23.1% of spine length; width of spines on pelvic fin 12.9% to 14.2% of spine length; width of anal fin spines 24.4% to 34.2% of spine length), lack of black pigment in the spinous portion of the dorsal fin, and a unique combination of counts and morphometric characters (56 digitiform pyloric caeca, 13 enlarged ventral scutes, ventral fin origin to anal fin origin 38.7% of standard length).