Buxtoniini, Muir-Wood and Cooper, 1960
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publication ID |
https://doi.org/ 10.4202/app.00972.2022 |
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persistent identifier |
https://treatment.plazi.org/id/41708783-FFCA-FFA7-8C7E-CB53FD12FCFA |
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treatment provided by |
Felipe |
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scientific name |
Buxtoniini |
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Buxtoniini gen. et sp. indet.
Fig. 12F View Fig .
Material.—Two dorsal valves: MPUM11971 (RCK15B-1a); MPUM11972 (RCC48-42). One fragment: MPUM11973 RCC48-2a). All from mud mound complex of Ricklow Quarry, Monyash, Derbyshire, UK, Monsal Dale Limestone Formation, Brigantian, upper Visean.
Remarks.—The specimens are poorly preserved dorsal valves with flat visceral discs and convex geniculation (geniculation angle 90°). They show a low, rounded fold starting from the umbo and an ornamentation of subangular rugae three per 5.0 mm length) bearing irregular rows of elongated dimples (1.0 mm long; five per 5 mm 2). Faint ribs with wide interspaces on trail, four per 5.0 mm. The specimens are attributed to the Buxtoniini based on their ornamentation of dense elongated dimples and irregular ribs anteriorly.
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