. Bulletin of the British Museum (Natural History), Geology. BRACHIOPODS OF DUNCANNON GROUP OF SE IRELAND 169 Family STROPHEODONTIDAE Caster, 1939 Subfamily STROPHEODONTINAE Caster, 1939 Genus HIBERNODONTA Harper & Mitchell, in Harper et al. 1985 Hibernodonta ? sp. PI. 15, figs 8-10 Material and locality. Kildare, Grange Hill House Cot- tage: 3 internal and 1 external mould of brachial valves, 2 external moulds of pedicle valves and 3 indeterminate exter- nal moulds. Discussion. The genus and species H. praeco were first described from the Clashford House Formation at Herbert- stown, Co. M
. Bulletin of the British Museum (Natural History), Geology. BRACHIOPODS OF DUNCANNON GROUP OF SE IRELAND 169 Family STROPHEODONTIDAE Caster, 1939 Subfamily STROPHEODONTINAE Caster, 1939 Genus HIBERNODONTA Harper & Mitchell, in Harper et al. 1985 Hibernodonta ? sp. PI. 15, figs 8-10 Material and locality. Kildare, Grange Hill House Cot- tage: 3 internal and 1 external mould of brachial valves, 2 external moulds of pedicle valves and 3 indeterminate exter- nal moulds. Discussion. The genus and species H. praeco were first described from the Clashford House Formation at Herbert- stown, Co. Meath by Harper & Mitchell (in Harper et al. 1985). As an early stropheodontid, the small rafinesquinid- like valves have denticulate hinge lines. The specimens here are tentatively assigned to Hibernodonta, since there is an appearance of denticulation on the hinge line, as well as definite denticulate teeth. However, the material is poorly preserved and only three valves have the hinge area present, although the size of the sample is larger than that of the type species. There is no thickened median rib. Until better preserved specimens are collected the material can only be questionably assigned to Hibernodonta; it may equally be a strophomenoid species which developed denticulate teeth and sockets, other cases of which are discussed by Harper et al. (1985). Superfamily PORAMBONITOIDEA Davidson, 1853 Family PORAMBONITIDAE Davidson, 1853 Genus PORAMBONITES Pander, 1830 Porambonites sp. PL 11, figs 21-22 Material and locality. Kilbride: 2 internal moulds of pedicle valves. Description. Ventral interior. Large valves of subtriangular outline, with strong convexity posteriorly. Shallow sulcus originating about mid-length. Faint growth line impressions near anterior margin. Strong teeth supported by high, thin parallel dental plates extending anteriorly for nearly half of length. (Exteriors are unknown.) Measurements. BC 12670: (XI) length = 23 mm, (X2) width = 18-4 mm, (X3) p
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