scholarly journals New Paleocene bird fossils from the North Sea Basin in Belgium and France

2019 ◽  
Vol 22 (1-2) ◽  
pp. 35-46 ◽  
Author(s):  
Gerald MAYR ◽  
Thierry SMITH
Keyword(s):  
North America ◽  
North Sea ◽  
Early Eocene ◽  
Fossil Assemblage ◽  
The North ◽  
The North Sea ◽  
Dispersal Events ◽  
Early Cenozoic

We describe new avian remains from Paleocene localities of Belgium and France. Four bones from the early to middle Selandian of Maret (Belgium) are among the earliest Cenozoic avian remains known from Europe and include the oldest temporally well constrained European records of the Gastornithidae, as well as tentative records of the palaeognathous Lithornithidae and the Ralloidea. A more comprehensive fossil assemblage from the middle Thanetian of Templeuve (France) contains multiple bones of the Lithornithidae as well as a record of the Pelagornithidae. Specimens from the latest Thanetian of Rivecourt-Petit Pâtis (France) are tentatively assigned to the Ralloidea and Leptosomiformes (cf. Plesiocathartes). Because of the fragmentary nature of the fossils, the taxonomic identity of a number of other specimens remains uncertain. We note, however, that Paleocene avifaunas of Europe and North America appear to have had different compositions and only a few taxa, such as the palaeognathous Lithornithidae, are known from both continents. This suggests that the very similar early Eocene avifaunas of Europe and North America are the result of early Cenozoic dispersal events.

Capitalizing on the Talents of Retirees

2007 ◽  
Vol 01 (02) ◽  
pp. 19-20
Author(s):  
Deborah Stockwell
Keyword(s):  
North America ◽  
North Sea ◽  
Early Retirement ◽  
Oil Industry ◽  
The North ◽  
The North Sea ◽  
Personnel Shortages ◽  
Retention Policies

HR Perspective - The big crew change, which has been looming over the oil industry for years, is now upon us. The average age of offshore workers in the North Sea and North America is over 50. Cutbacks in recruitment, lack of active retention policies, early retirement, and streamlining measures all have played a part in causing chronic personnel shortages. The challenge now is, who will replace today's workforce?

OIL TAX POLICY IN THE NORTH SEA AND NORTH AMERICA

OPEC Review ◽  
1980 ◽  
Vol 4 (3) ◽  
pp. 55-64 ◽  
Author(s):  
Dillard P. Sprias
Keyword(s):  
North America ◽  
North Sea ◽  
Tax Policy ◽  
The North ◽  
The North Sea

Stable isotope and biotic evolution in the North Sea during the early Eocene: the Albæk Hoved section, Denmark

1996 ◽  
Vol 101 (1) ◽  
pp. 275-306 ◽  
Author(s):  
B. Schmitz ◽  
C. Heilmann-Clausen ◽  
C. King ◽  
E. Steurbaut ◽  
F. P. Andreasson ◽  
...  
Keyword(s):  
Stable Isotope ◽  
North Sea ◽  
Early Eocene ◽  
The North ◽  
The North Sea

scholarly journals Increased oil recovery from Halfdan chalk by flooding with CO2-enriched water: a laboratory experiment

1969 ◽  
Vol 17 ◽  
pp. 17-20
Author(s):  
Dan Olsen
Keyword(s):  
North America ◽  
Laboratory Experiment ◽  
North Sea ◽  
Oil Recovery ◽  
Oil Field ◽  
Geological Survey ◽  
Low Permeability ◽  
The North ◽  
The North Sea ◽  
Increased Oil Recovery

Injection of CO2 is a method that may increase the recovery of oil from Danish chalk reservoirs in the North Sea. The method is used elsewhere, particularly in North America, but has so far not been used in the North Sea and has nowhere been used for chalk reservoirs, and the performance of the method when used for North Sea chalk is therefore uncertain. A laboratory flooding experiment was conducted at the Geological Survey of Denmark and Greenland on a sample from the Nana-1X well of the Halfdan oil field in the Danish North Sea in order to test the efficiency of CO2-enriched water to produce additional oil from chalk. The sample is a low-permeability chalk from the Ekofisk Formation and represents rocks that are marginal to the Halfdan reservoir in an economical sense.

scholarly journals Eocene tarpons from the North Sea region, Denmark and UK

2015 ◽  
Author(s):  
Maria E. C. Leal ◽  
Bo P. Schultz ◽  
Henrik Madsen ◽  
Chiara Villa ◽  
Niels Lynnerup ◽  
...  
Keyword(s):  
North Sea ◽  
Late Jurassic ◽  
Late Eocene ◽  
Biological Anthropology ◽  
Early Eocene ◽  
The North ◽  
Lower Jaw ◽  
The North Sea ◽  
London Clay ◽  
Cretaceous Period

There are very few tarpons (family Megalopidae) and other elopiforms (fam. Elopidae) recorded in the Tertiary. The records are mainly from the Eocene, and more abundant in the ‘North Sea Region’ in Early Eocene, as for instance the large Danish forms. They are also found in late Early Eocene in London Clay, in Late Eocene in Caucasia, and in Miocene of SE-Asia, although none were described from the famous Bolca fauna (early Mid Eocene). However, there is a large, still undescribed ‘tarpon-like’ fish in the Bolca Museum (obs. MECL & NB 2014). There are even fewer described from the long Cretaceous period, 4-5? genera, including the large Paraelops from Romualdo Formation, Araripe Basin, NE-Brazil, and a large undescribed megalopid from Tlayua, Pueblo, Mexico, both ‘Mid Cretaceous’. The oldest elopiforms are from Late Jurassic Solnhofen Limestone. The large Danish ‘tarpons’ come from ‘cementstones’ in Fur Formation (earliest Eocene, ca. 55 m.y.), and here we report an almost complete specimen which is ca. 110 cm long; however, big isolated scales found in this formation indicate fishes at least twice as big (comparable in size with the living Tarpon atlanticus - over 2½ m). This specimen has a heavy skull lacking the lower jaw, and is preserved in 3-D. It was split in the midline and acid prepared, being then CT-scanned in Aarhus and reconstructed in the Laboratory of Biological Anthropology, Copenhagen University to attempt precise, detailed comparisons with modern skulls and with the 3-D skulls preserved in concretions from the London Clay.

scholarly journals Eocene tarpons from the North Sea region, Denmark and UK

2015 ◽  
Author(s):  
Maria E. C. Leal ◽  
Bo P. Schultz ◽  
Henrik Madsen ◽  
Chiara Villa ◽  
Niels Lynnerup ◽  
...  
Keyword(s):  
North Sea ◽  
Late Jurassic ◽  
Late Eocene ◽  
Biological Anthropology ◽  
Early Eocene ◽  
The North ◽  
Lower Jaw ◽  
The North Sea ◽  
London Clay ◽  
Cretaceous Period

There are very few tarpons (family Megalopidae) and other elopiforms (fam. Elopidae) recorded in the Tertiary. The records are mainly from the Eocene, and more abundant in the ‘North Sea Region’ in Early Eocene, as for instance the large Danish forms. They are also found in late Early Eocene in London Clay, in Late Eocene in Caucasia, and in Miocene of SE-Asia, although none were described from the famous Bolca fauna (early Mid Eocene). However, there is a large, still undescribed ‘tarpon-like’ fish in the Bolca Museum (obs. MECL & NB 2014). There are even fewer described from the long Cretaceous period, 4-5? genera, including the large Paraelops from Romualdo Formation, Araripe Basin, NE-Brazil, and a large undescribed megalopid from Tlayua, Pueblo, Mexico, both ‘Mid Cretaceous’. The oldest elopiforms are from Late Jurassic Solnhofen Limestone. The large Danish ‘tarpons’ come from ‘cementstones’ in Fur Formation (earliest Eocene, ca. 55 m.y.), and here we report an almost complete specimen which is ca. 110 cm long; however, big isolated scales found in this formation indicate fishes at least twice as big (comparable in size with the living Tarpon atlanticus - over 2½ m). This specimen has a heavy skull lacking the lower jaw, and is preserved in 3-D. It was split in the midline and acid prepared, being then CT-scanned in Aarhus and reconstructed in the Laboratory of Biological Anthropology, Copenhagen University to attempt precise, detailed comparisons with modern skulls and with the 3-D skulls preserved in concretions from the London Clay.

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