Hirnantia sagittifera ( M’Coy, 1851 )

Hints, Linda & Harper, David A. T., 2015, The Hirnantian (Late Ordovician) brachiopod fauna of the East Baltic: Taxonomy of the key species, Acta Palaeontologica Polonica 60 (2), pp. 395-420 : 411-412

Hirnantia sagittifera ( M’Coy, 1851)

Material. —57 variably preserved specimens. Porkuni Regional Stage, Hirnantian (Upper Ordovician); Latvia and southwestern Estonia. Drill core and depth (in meters) of sample intervals with brachiopods. Depth of fragmentary preserved specimens is marked by “?”. Kuldiga Formation: collection GIT 542: Adze,?846.70; Aizpute-41,?1000.3; Engure,?882.45–882.80; Mežmaļi-16,?903.50–?914.8; Ruhnu-500,?616.5–616.90; Stirnas-18,?910 (lowermost Conochitina scabra Biozone, Hints et al. 2010 ); Riekstini-15,?855.7–?857.5; ( C. scabra Biozone, Brenchley et al. 2003 ); Vilcini-15, 910.8.?Prabut Formation: Petrobaltic S-8, 2618.2–2618.8 m; collections LDM G: Blīdene-5,?815.75–?819.3; Cicere,?897.8–898.2; Dižrungi-17, 895.7–?895.9; Kandava-25,?930.3–?930.5; Kronauce,?1053.7; Kuili,

948.0–948.5; Mežciems,?379.5; Mežvagari-13, 872.1– 879.10; Piltene-30, 938.0–945.0; Piltene-31, 971.2–?977.8; Piltene-32, 923.5; Pliekalni-14, 884.8; Remte-3,?965–?966. Saldus Formation: Alūksne,?872.45–872.52.

Remarks.—The species Hirnantia sagittifera from the East Baltic has been recently described in a separate paper ( Hints et al. 2012) and need not be repeated here.

Stratigraphic and geographic range.— The Hirnantian Stage, Upper Ordovician. This cosmopolitan species is the eponymous taxon for the Hirnantia brachiopod fauna. The species is common in both the typical and atypical Hirnantia faunas and has a near global distribution ( Rong and Harper 1988). In Baltoscandia it occurs in Norway ( Cocks 1982), Sweden

Bergström 1968), Estonia, Latvia (this paper), and Lithuania

Paškevičius 1997).