scholarly journals Life History and Ecology of Baetisca Bajkovi Neave, in Beech Fork of Twelvepole Creek, Wayne County. West Virginia (Ephemeroptera: Baetiscidae)

1979 ◽  
Vol 86 (1) ◽  
pp. 53-61
Author(s):  
Dwight L. Chaffee ◽  
Donald C. Tarter
Keyword(s):  
Life History ◽  
West Virginia ◽  
Wayne County

scholarly journals Ecological Life History of Baetisca Berneri Tarter and Kirchner From a West Virginia Stream (Ephemeroptera: Baetiscidae)

1980 ◽  
Vol 87 (1-2) ◽  
pp. 39-47
Author(s):  
William R. Morris ◽  
Dwight L. Chaffee ◽  
Donald C. Tarter
Keyword(s):  
Life History ◽  
West Virginia ◽  
Primary Objective ◽  
History Of

The primary objective of this investigation was to study the ecological life history of the mayfly Baetisca berneri Tarter and Kirchner in Laurel Fork, Mingo Co., West Virginia. Many authors, including Say (1839), Traver (1931), Needham et al. (1935), Berner ( I940, 1955 ), Edmunds (I 960), Schneider and Berner (1963), Pescador and Peters (1971, 1974), Lehmkuhl (1972), Tarter and Kirchner (1978) and Chaffee and Tarter (1979), have reported studies on the taxonomy and ecology of the genus Baetisca.

Limnopus trackways from the Conemaugh Group (Late Pennsylvanian), southern West Virginia

1991 ◽  
Vol 65 (6) ◽  
pp. 957-972 ◽  
Author(s):  
Ronald L. Martino
Keyword(s):  
West Virginia ◽  
Subtropical Climate ◽  
Plant Debris ◽  
Mean Values ◽  
Wayne County ◽  
Delta Plain ◽  
Total Length ◽  
Glenshaw Formation ◽  
Channel Systems ◽  
Stratigraphic Interval

Abundant and well-preserved tetrapod footprints have been discovered in the Glenshaw Formation (Lower Conemaugh Group) in Wayne County, West Virginia. The tracks occur along at least three horizons within a 30-cm-thick stratigraphic interval about 15 m (50 ft) above the Brush Creek Limestone; they are of Missourian age. The tracks are preserved mainly as casts on the underside of thin-bedded, ripple cross-laminated sandstones and less commonly as molds in intervening dark-gray shales. Associated body fossils include Spirorbis worm tubes and washed-in plant debris. Facies characteristics indicate the tracks were formed along the margins of an ephemeral lake in a flood basin setting adjacent to delta plain fluviodeltaic channel systems. Short-lived lacustrine conditions were likely to have resulted from a seasonal tropical to subtropical climate.Most of the tracks can be assigned to the ichnogenus Limnopus, making them one of the earliest known occurrences. At least five trackways are discernible with an external width ranging from 320 to 400 mm. Limnopus glenshawensis, a new ichnospecies, is herein proposed and various morphologic and locomotion parameters are quantified. Mean values include stride/manus, 407 mm; stride/pes, 411 mm; oblique pace/manus, 313 mm; oblique pace/pes, 317 mm; pace angle/manus, 82.4 degrees; pace angle/pes, 80.5 degrees; glenoacetabular distance, 329 mm; manus length, 87.2 mm; manus width, 104.2 mm; pes length, 121.4 mm; pes width, 112.7 mm. The tracemaker was most likely an eryopoid amphibian with a total length of slightly over 1 m.

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