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Albertia reticornis
Albertia recticornis, Vozzhennikova, 1967
Following I.C.N. Article 55.1, the species name Albertia recticornis is validly published even though the generic name Albertia is illegitimate.
Originally Albertia (generic name illegitimate), subsequently Alterbia (combination illegitimate), thirdly Alterbidinium.
Vozzhennikova"s illustrations represent two different specimens. Accordingly, Stover and Evitt, 1978, designated as lectotype the specimen illustrated in Vozzhennikova, 1967, pl.77, fig.1. Lentin and Williams, 1981, did not accept Stover and Evitt"s 1978 contention that Vozzhennikova had not validly published this species. Lentin and Williams, 1981, argued that Vozzhennikova designated a holotype, which she illustrated in two views (her pl.77, figs.1-2); thus, the designation of a lectotype by Stover and Evitt, 1978, was unnecessary. However, re-examination of Vozzhennikova"s original material demonstrates that Stover and Evitt, 1978, were correct. The species name Albertia recticornis is validly published even though the generic name Albertia is illegitimate.
Holotype: Vozzhennikova, 1967, pl.77, figs.1-2 (different specimens) and Lentin and Vozzhennikova, 1990, pl.3, fig.10; text-fig.13b?.
Lectotype: Vozzhennikova, 1967, pl.77, fig.1; designated by Stover and Evitt, 1978.
Locus typicus: Kazakhstan (Kustanai)
Stratum typicum: Turonian
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Original description: [Vozzhennikova, 1967, p.151-152]:
Diagnosis:
Epitheca triangular, with straight slightly convex or somewhat concave lateral walls and with a short, slender apical horn bluntly rounded at the tip. Hypotheca trapeziform, with one long and one short antapical horn both of which are acutely pointed. The short horn is often absent and where it would occur the hypotheca is rounded or truncated. Transverse furrow shallow, equatorial, annulate, from its ends the longitudinal furrow runs towards the antapex. Internal body broadly rhomboid or similar in form to the theca, thin walled, with a smooth or finely granular surface. Thecal surface smooth or finely granular. Pylome triangular, its angles rounded or bluntly truncated.
Dimensions:
Holotype: length of theca 91.8 µm, breadth 54.0 µm, width of transverse furrow 5.4 µm, length of internal body 56.7 µm, breadth 45.0 µm.
Following I.C.N. Article 55.1, the species name Albertia recticornis is validly published even though the generic name Albertia is illegitimate.
Originally Albertia (generic name illegitimate), subsequently Alterbia (combination illegitimate), thirdly Alterbidinium.
Vozzhennikova"s illustrations represent two different specimens. Accordingly, Stover and Evitt, 1978, designated as lectotype the specimen illustrated in Vozzhennikova, 1967, pl.77, fig.1. Lentin and Williams, 1981, did not accept Stover and Evitt"s 1978 contention that Vozzhennikova had not validly published this species. Lentin and Williams, 1981, argued that Vozzhennikova designated a holotype, which she illustrated in two views (her pl.77, figs.1-2); thus, the designation of a lectotype by Stover and Evitt, 1978, was unnecessary. However, re-examination of Vozzhennikova"s original material demonstrates that Stover and Evitt, 1978, were correct. The species name Albertia recticornis is validly published even though the generic name Albertia is illegitimate.
Holotype: Vozzhennikova, 1967, pl.77, figs.1-2 (different specimens) and Lentin and Vozzhennikova, 1990, pl.3, fig.10; text-fig.13b?.
Lectotype: Vozzhennikova, 1967, pl.77, fig.1; designated by Stover and Evitt, 1978.
Locus typicus: Kazakhstan (Kustanai)
Stratum typicum: Turonian
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Original description: [Vozzhennikova, 1967, p.151-152]:
Diagnosis:
Epitheca triangular, with straight slightly convex or somewhat concave lateral walls and with a short, slender apical horn bluntly rounded at the tip. Hypotheca trapeziform, with one long and one short antapical horn both of which are acutely pointed. The short horn is often absent and where it would occur the hypotheca is rounded or truncated. Transverse furrow shallow, equatorial, annulate, from its ends the longitudinal furrow runs towards the antapex. Internal body broadly rhomboid or similar in form to the theca, thin walled, with a smooth or finely granular surface. Thecal surface smooth or finely granular. Pylome triangular, its angles rounded or bluntly truncated.
Dimensions:
Holotype: length of theca 91.8 µm, breadth 54.0 µm, width of transverse furrow 5.4 µm, length of internal body 56.7 µm, breadth 45.0 µm.