Foraminifera source details

Copestake, P.; Johnson, B. (2014). Lower Jurassic Foraminifera from the Llanbedr (Mochras Farm) Borehole, North Wales, UK. Monographs of the Palaeontographical Society. 167(641)[2013]: 1-403.
290706
10.1080/02693445.2013.11963952 [view]
Copestake, P.; Johnson, B.
2014
Lower Jurassic Foraminifera from the Llanbedr (Mochras Farm) Borehole, North Wales, UK
Monographs of the Palaeontographical Society
167(641)[2013]: 1-403
Publication
Available for editors  PDF available [request]
The complete, fully cored Lower Jurassic (Hettangian, Sinemurian, Pliensbachian, Toarcian) succession from the Llanbedr (Mochras Farm) Borehole, North Wales, the thickest known British section, has yielded a diverse and well preserved foraminiferal fauna, comprising 270 species and subspecies which are described and illustrated. An additional nine taxa, not encountered at Mochras, are also described. This typical European Boreal Atlantic foraminiferal fauna is dominated by members of the Lagenida, with the Ceratobuliminoidea, Miliolida, Spirillinina, Involutinina, Buliminida and Textulariida as important accessory groups. The Ceratobuliminoidea and Miliolida are unusually diverse, with Reinholdella and Ophthalmidium being notably abundant. The presence of the Family Oberhauserellidae is significant. A benthonic foraminiferal biozonation scheme for the Lower Jurassic, comprising 16 biozones and tied to the standard ammonite-based chronostratigraphy, is described in detail. It is recognizable across the northern European Boreal province, and is applicable to subsurface hydrocarbon exploration of the UK continental shelf and onshore Europe. Three new genera (Duoplanum, Extonia and Haynesella) are described as well as 19 new species (Citharina sherringtoni, Duoplanum inaequale, D. leve, Glomospirella liassica, Lagena? haeusleri, L. semisulcata, Lagenammina pseudofusiformis, L. tangentia, Loxostomum liassicum, Marginulina turneri, Neobulimina bangae, Nodosaria pseudoclaviformis, Ophthalmidium strictum, Reinholdella? mochrasensis, R. robusta, Reussoolina? lacrimaforma, Semiinvoluta excelsa, Tubinella pseudoinornata and Vinelloidea lordi), and 10 new subspecies (Berthelinella involuta striata, Ichthyolaria terquemi bamardi, I. terquemi mediumcostata, Lenticulina varians barnardi, Loxostomum liassicum liassicum, L. liassicum teres, Ophthalmidium macfadyeni tenuiloculare, Paralingulina cernua ssp. A, Reinholdella margarita dorsoplana and R. pachyderma humilis). Two further species are renamed as Nodosaria whittakeri and Paralingulina paranodosaria.
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2018-03-09 15:18:34Z
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Berthelinella involuta subsp. striata Copestake & Johnson, 2014 † (original description)
Citharina sherringtoni Copestake & Johnson, 2014 † (original description)
Duoplanum Copestake & Johnson, 2014 † (original description)
Duoplanum inaequale Copestake & Johnson, 2014 † (original description)
Duoplanum leve Copestake & Johnson, 2014 † (original description)
Extonia Copestake & Johnson, 2014 † (original description)
Extonia aspera (Terquem & Berthelin, 1875) † (new combination reference)
Glomospirella liassica Copestake & Johnson, 2014 † (original description)
Haynesella Copestake & Johnson, 2014 † (original description)
Haynesella pictonica (Berthelin, 1879) † (new combination reference)
Ichthyolaria terquemi subsp. barnardi Copestake & Johnson, 2014 † (original description)
Ichthyolaria terquemi subsp. mediumcostata Copestake & Johnson, 2014 † (original description)
Lagena haeusleri Copestake & Johnson, 2014 † (original description)
Lagena semisulcata Copestake & Johnson, 2014 † (original description)
Lagenammina pseudofusiformis Copestake & Johnson, 2014 † (original description)
Lagenammina tangentia Copestake & Johnson, 2014 † (original description)
Lenticulina varians subsp. barnardi Copestake & Johnson, 2014 † (original description)
Loxostomum liassicum Copestake & Johnson, 2014 † (original description)
Loxostomum liassicum subsp. liassicum Copestake & Johnson, 2014 † represented as Loxostomum liassicum Copestake & Johnson, 2014 † (original description)
Loxostomum liassicum subsp. teres Copestake & Johnson, 2014 † (original description)
Marginulina turneri Copestake & Johnson, 2014 † (original description)
Neobulimina bangae Copestake & Johnson, 2014 † (original description)
Nodosaria pseudoclaviformis Copestake & Johnson, 2014 † (original description)
Nodosaria whittakeri Copestake & Johnson, 2014 † (original description)
Ophthalmidium macfadyeni subsp. tenuiloculare Copestake & Johnson, 2014 † (original description)
Ophthalmidium strictum Copestake & Johnson, 2014 † (original description)
Paralingulina paranodosaria Copestake & Johnson, 2014 † (original description)
Reinholdella margarita subsp. dorsoplana Copestake & Johnson, 2014 † (original description)
Reinholdella mochrasensis Copestake & Johnson, 2014 † (original description)
Reinholdella pachyderma subsp. humilis Copestake & Johnson, 2014 † (original description)
Reinholdella robusta Copestake & Johnson, 2014 † (original description)
Reussoolina lacrimaforma Copestake & Johnson, 2014 † (original description)
Semiinvoluta excelsa Copestake & Johnson, 2014 † (original description)
Tubinella pseudoinornata Copestake & Johnson, 2014 † (original description)
Vinelloidea lordi Copestake & Johnson, 2014 † (original description)