Sample Detail of
Sample: Sample No. 88A-1
Locality: Field No. 88A-1
Description: Locality consists of the basal 90 m of the lower member of the Ulangarat unit. Its geographic coordinates are: Lat. 69o 00.35'N, Long. 143o 21.65'W; and it is located in the SW1/4, NE1/4, SE1/4 of sec. 17, T5S, R37E, Demarcation Point A-4 quadrangle. At this locality, the basal 32 m consists of green-gray-weathering mudstone, which is overlain by black phyllite with sporadic fossiliferous calcareous siltstone and fine-grained sandstone interbeds. The specimens of Bicarinatina were recovered from throughout the mudstone interval. (description from Popov and others, 1994, p. 1215). (=locality 16 of Reiser and others, 1980, USGS Map I-1133).
Location: Alaska Quadrangle: Demarcation Point A-4
Township&Range: T5S R37E Section: SW1/4NE1/4SW1/4 sec. 17
Lat.: 69o00.35 ' Long.: 143o21.65 '
Reference
Title: First occurrence of the genus Bicarinatina (Brachiopoda, Inarticulata) from the Middle Devonian of North America (Alaska) ,  1994
Abstract--The lingulid brachiopod species Bicarinatina kongakutensis n. sp. is recorded here from the Middle Devonian (Eifelian) Ulangarat unit in Arctic Alaska. A restudy of the type species, Bicarinatina bicarinata (Kutorga) from the Middle Devonian (Eifelian) of Eastern Europe, suggests close affinities with the Ordovician genus Pseudolingula and gives god reason to assign Bicarinatina to the family Pseudolingulidae. There is no important points of difference in the morphologies of Bicarinatina and the Early Carboniferous lingulid genus Liralingua and, thus, both genera are here synonymized.
Report by: Leonid Y. Popov , Robert B. Blodgett , Arlene V. Anderson
Age: Eifelian
Formation: Unnamed (Ulangarat unit)
Comment:Figure 1 shows location of this location on a 1:63,360 scale map.
Occurrence(s)
No. Group Name Qty Notes
1 Brachiopods Bicarinatina kongakutensis n. sp.