[1] The tidally driven vertical diffusivity in the abyssal ocean during the early Eocene (55 Ma) is investigated using an established tidal model. A weak tide is predicted in the Eocene ocean, except in the Pacific. Consequently, the integrated global tidal dissipation rate is a mere 1.44TW, of which 40% dissipate in the Pacific. However, due to a stronger abyssal vertical stratification the pr...

Australian Eocene-Oligocene Ostracoda have been little reported hitherto, this paper representing the first substantial taxonomic study. The 80 species which we identified came from Late Eocene Gull Rock Member of Blanche Point Formation in Willunga Embayment, South Australia (16 species) and lower fossiliferous bed Oligocene Angahook at Bells Headland, Victoria (70 species); only 6 are common ...

The evolution of ecological processes on coral reefs was examined based on Eocene fossil fishes from Monte Bolca, Italy and extant species from the Great Barrier Reef, Australia. Using ecologically relevant morphological metrics, we investigated the evolution of herbivory in surgeonfishes (Acanthuridae) and rabbitfishes (Siganidae). Eocene and Recent surgeonfishes showed remarkable similarities...

The Grande Coupure corresponds to a major episode of faunal turnover in western Europe around the Eocene-Oligocene boundary that is generally attributed influx multiple clades Asian mammals. However, mammal begin appear fossil record southeastern during middle Eocene, 5–10 million years prior Coupure. How and when these colonized remains poorly understood, partly because mammals from nearby Ana...

The diversity of modern herbivorous insects and their pressure on plant hosts generally increase with decreasing latitude. These observations imply that the diversity and intensity of herbivory should increase with rising temperatures at constant latitude. Insect damage on fossil leaves found in southwestern Wyoming, from the late Paleocene-early Eocene global warming interval, demonstrates thi...

Dental and postcranial specimens of Gomphos elkema, including lower and upper dentition and pedal elements, from the Huheboerhe locality, Erlian Basin, Nei-Mongol (Inner Mongolia), are described. Postcranial elements of Gomphos are similar to those of Mimolagus, suggesting affinity with lagomorphs. Gomphos elkema is a typical Bumbanian taxon, previously known only from Mongolia. Gomphos elkema ...

M. P. Searle's recent paper in the Journal of Structural Geology (Searle 1986) included a major departure from published structural interpretations of the Ladakh Himalaya. The geologic history of Ladakh is a vital key to understanding the timing and sequence of events during the Himalayan orogeny. Ophiolitic rocks and island arc volcanics along the Indus Suture zone (Frank et al. 1977, and many...

This paper describes the foraminiferal associations along with presentation of three new agglutinated conical species to construction biozonation framework in Mahallat region central Iran. The stratigraphic distribution benthic foraminifers is used characterize assemblage zones that are ascending order: rotaliids-valvulinids Assemblage Zone, alveolinids-coskinolinids and nummulitids-discocyclin...