New material of Microbrachius from Lower Devonian
of Qujing, Yunnan,
A new species of Psilophyton from the Lower Devonian
of northern New Brunswick.
In the study area, the older Pampa de los Avestruces granite is Lower Devonian
in age and shows evidences of compressive deformation during emplacement (Tickyj et al, 2009a).
The stratigraphic age of these Lower Devonian
limestones is Lower Emsian in the presently valid concept but the exact stratigraphic level lies close below the Graptolite Dysoxic Event beds which can be selected as a future Pragian-Emsian boundary (Hladil et al.
Palaeoscorpius devonicus Lehmann, 1944 from the Lower Devonian
Hunsruck Slate Lagerstatte in Germany has also been re-investigated (Kuhl et al.
The research also includes an analysis of fossils of a fragmented spine and isolated scales from the Lower Devonian
found in northern Spain (Palencia and Cantabrian Mountains) and western France, originally attributed to the Machaeracanthus species.
We believe output from reservoirs other than the currently producing Lower Devonian
could extend the plateau beyond 3-4 years.
The Tamadanet Well discharged 5,883 cubic metres of gas per hour (gph) from the Ordovician reservoir (units III 3 and II) and 3,619 cubic metres of gph from the Lower Devonian
reservoir F, the source pointed out.
Arthropod trace fossils in the Lower Devonian
Jacquet River Formation of New Brunswick.
A new Lower Devonian
Plant and the early evolution of leaves, Nature, 309: 785-787.
A new sea spider (Pycnogonida) with a flagelliform telson from the Lower Devonian
Hunsruck Slate, Germany.
The regression, which had started in the Silurian and continued with short interruptions also in the lower Devonian
(Kemeri time), marks the geocratic period separating the Caledonian and Herzynian tectonic stages (Nestor & Einasto 1997).