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Current identification/main database link: Globoconella puncticulata (Deshayes 1832)
G. testâ minutissimâ depressâ, tres quatuorve globulis formatâ; globulis undiquè puncticulatis; aperturâ rotundâ. Description of lectotype.-The test is composed of about 12 chambers comprising about 2½ whorls arranged in a fairly tightly coiled and low trochospire. There are about four slowly enlarging chambers in each whorl and those in the last whorl increase somewhat irregularly in size. The equatorial profile is subcircular and the test has a slightly lobulate equatorial periphery. The axial profile is sub-ovate with the ventral side only slightly more convex than the dorsal side; the axial periphery is smoothly but narrowly rounded; no peripheral carina nor any peripheral thickening (pseudocarina) is present. The chambers are little inflated and partly embracing; in dorsal aspect they are lunate in shape, being much longer circumferentially than broad radially, a feature which becomes accentuated during ontogeny. The dorsal sutures are slightly and narrowly depressed, the amount of depression increasing in ontogeny; the spiral suture is only slightly lobulate, almost a smooth curve, whilst the dorsal intercameral sutures are strongly recurved, meeting the spiral suture at an acute angle. The ventral sutures of the final whorl are narrowly and very weakly depressed and nearly radial. The umbilicus is closed with no marked depression. The primary aperture is interiomarginal, umbilical-extraumbilical, a fairly high arch which is set into a slightly concave part of the apertural face; no apertural lip or rim is visible on the lectotype. The wall is fairly thick, finely and uniformly perforate. The ventral surface of the first chamber of the last whorl, facing the terminal aperture, is heavily pustulose; the remainder of the surface of the test is smooth. [Banner & Blow 1960] When d'Orbigny (1826) published the name Globigerina punctulata he gave no indication of the nature of the species nor did he give any definition or description. Consequently, that publication of the name has no taxonomic status whatsoever. By Art. 21 of the "Regles Internationales de la Nomenclature Zoologique,"" 1905 (1953), the first author of a species name is that person who first publishes the name in connection with such an indication, definition or description provided that these indications are clearly the work of the author in question. The first description applicable to the species here described was that given by Deshayes in 1832 who considered it new and used the term ""nobis."" We have carefully checked as much as possible of the original first editions of the literature of the period concerned in order to confirm this. Although Deshayes (1832, p. 170) was clearly referring to d'Orbigny's species (he referred to ""no. 8"" of the list given in d'Orbigny 1826 under the heading Globigerina), his spelling of the name Globigerina puncticulata is the first and only valid spelling, and it must supplant the version ""punctulata"" invalidly proposed by d'Orbigny in 1826. Remarks: The form recorded by Kane (1953, pI. 1, fig. 9) as this species is not clearly illustrated but does not seem to belong to the species puncticulata; Kane's specimens may belong to Globorotalia crassula Cushman and Stewart, and the forms illustrated by Phleger, Parker and Peirson (1953, pI. 4, figures 8-12) may also be referable to Cushman and Stewart's species.
Original Description
Nob. [nobiscum i.e. ourselves]
D'ORBIGNY, loc. cit. no, 8. [i.e. d'Orbigny 1826 Memoire sur les Céphalopodes, Ann. des Sc. nat. 7, p.277, no.8]
Coquille beaucoup plus petite que la précédente [G. bulloides], ayant à peine on cinquième de millimètre de longueur; elle est jaunâtre, composée de trois ou quatre globules bien séparés les uns des autres et formant un commencement de spirale trèsaplatie, un seul globule forme le sommet, les trois antres lui sont inférieurs; ils sont tous chagrinés et couverts de ponctuations éparses et nombreuses. La dernière loge, qui est la plus grande, est percée inférieurement d'une très-petite ouverture ronde , qui nous a paru placée plus exterieurement que dans l'espèce précédente. Ayant recueilli cette espèce dans les sables de Rimini, nous avons pensé que c'était celle que M. d'Orbigny avoit nommée Globigerina puncticulata, son nom et sa localité s'appliquant bien à elle.
Size:
Extra details from original publication
Deshayes (loc. cit.) obtained his specimens from Rimini and the d'Orbigny specimens must also be considered syntypic because of the reference by Deshayes to d'Orbigny's list number (i. e., G. punctulata) (R. V. Melville verb.).
A slide which originally contained seven specimens, all labelled ""Globigerina punctulata d'Orbigny (Subapennin) Rimini,"" is preserved in the Alcide d'Orbigny collections, Paris; only two of these seven specimens are weI! preserved and one of these (here illustrated and described, pI. 5, fig. 7) is here designated the lectotype of Globigerina puncticulata Deshayes 1832.
As the name Globigerina punctulata d'Orbigny became nominally valid with the first publication of d'Orbigny's drawing by Fornasini in 1899 and in order to avoid further taxonomic confusion we hereby designate that specimen which is here designated the lectotype of G. puncticulata Deshayes 1832 to be also the lectotype of Globigerina punctulata d'Orbigny 1899. Therefore Globigerina punctulata d'Orbigny 1899 becomes an absolute and objective junior synonym of Globigerina puncticulata Deshayes 1832.
We would like to especially thank Mr. R. V. Melville (Assistant Secretary to the I.C.Z.N.) for his verbal help in clarifying the complicated taxonomy involved in this particular case. [Banner & Blow 1960]
The form illustrated by Brady (1884, pI. CIV, figs. 17a-c) belongs to the Discorbinae and not to the Globorotaliinae.
Globigerina puncticulata Deshayes 1832 appears to be consubgeneric with Globorotalia (Turborotalia) centralis Cushman and Bermudez and therefore should be referred to as Globorotalia (Turborotalia) puncticulata (Deshayes) (see Banner and Blow, 1959).We have observed this species in deposits of Pleistocene age in Sicily and in deposits from the same locality which may be Pliocene, as well as having seen it in collections from the recent seas. [Banner & Blow 1960]
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Globigerina puncticulata compiled by the pforams@mikrotax project team viewed: 10-12-2023
Short stable page link: https://mikrotax.org/pforams/index.php?id=130634 Go to Archive.is to create a permanent copy of this page - citation notes |
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