Abstract
Silurian palynomorphs from a single sample from the Chester Bjerg Formation, near Halls Grav, Hall Land, western North Greenland are of Wenlock or possibly early Ludlow age. Graptolites from the same sequence indicate a Pridoli (latest Silurian) age. The strata in question are the youngest known pre-Innuitian orogeny deposits in North Greenland. Possibie reworking of the palynomorphs in the turbidite sequence is discussed.
Highlights
Silurian palynomorphs from a single sample from the Chester Bjerg Formation, near Halls Grav, Hall Land, western North Greenland are of Wenlock or possibly early Ludlow age
Tylotopalla wenlockia ranges through the Wenlock, but is only rarely known from the lower Ludlow (Lister, 1970)
Diexallophasis granulatispinosa was recorded from the lower Wenlock and older strata of the Welsh Borderland by Dorning (1981), while Salopidium granuliferum ranged from deposits of latest Llandovery to earliest Ludlow age
Summary
Silurian palynomorphs from a single sample from the Chester Bjerg Formation, near Halls Grav, Hall Land, western North Greenland are of Wenlock or possibly early Ludlow age. 1) is of note in having yielded the youngest pre-deformation faunas yet known from the mainly Lower Palaeozoic sequence of the North Greenland trough. Discussion in the literature (see Dawes & Peel, this report) has suggested latest Silurian (Pridoli) or earIiest Devonian ages for graptolite and vertebrate faunas collected from these sediments during Operation Grant Land 1965-66.
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