Bolbozoe psittaca Perrier, Siveter, Williams, and Palmer, 2019
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publication ID |
https://doi.org/ 10.4202/app.00552.2018 |
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persistent identifier |
https://treatment.plazi.org/id/039C87B5-FFBF-FF85-FCB5-1AD8E69235C8 |
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treatment provided by |
Felipe |
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scientific name |
Bolbozoe psittaca Perrier, Siveter, Williams, and Palmer, 2019 |
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Bolbozoe psittaca Perrier, Siveter, Williams, and Palmer, 2019 View in CoL
Fig. 2C View Fig .
2019 Bolbozoe psittaca sp. nov.; Perrier et al. 2019: pl. 4: 1–13.
Holotype: A laterally compressed left valve ( OUMNH 35080 ); Perrier et al. 2019: pl. 4: 1–4.
Type locality: Radnorshire (loc. 12 of Perrier et al. 2019), Powys, Wales, UK.
Type horizon: “Striped Flags” of Kirk 1947, Cucullograptus (Lobograptus) scanicus Biozone, Gorstian Stage, Ludlow Series ( Perrier et al. 2019).
Material.—Five valves from two localities (Widełki and Niestachów), Holy Cross Mountains, Poland; Ludlow Series, Silurian.
Measurements (in mm).—Size range: L = 4.5, H = 2 (ZPAL O.63/3). Holotype: L = 5.15, H = 2.5 (OUMNH 35080). L/H ratio and adductor muscle position for one complete specimen ( Fig. 3).
B
/ A position
Muscle
Length/height
Description.—Lateral outline of adult valve is elongate ovoid, strongly tapered posteriorly. Anterior third of valve mostly occupied by large hemispherical bulb that forms the most prominent feature of valve; its diameter in adults is about one-third of valve length and its center is at valve mid-height. Maximum valve length is at about mid-height; maximum valve height is at about mid-length; maximum valve width is at the central part of bulb. A narrow sulcus surrounds the bulb almost entirely except anteriorly where bulb merges into rostrum without clear demarcation. Sulcus is widest at and above presumed site of (unknown) adductor muscle scar. Valve surface smooth.
Stratigraphic and geographic range.—Ludlow Series of the Holy Cross Mountains, Poland, England, and Wales ( Perrier et al. 2019).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.