Acarinina pentacamerata Subbotina 1947 from: Van Eijden, A.J.M.Smit, J. (1991): Eastern Indian Ocean Cretaceous and Paleogene quantitative biostratigraphy. In: Proceedings of the Ocean Drilling Program, Scientific Results Vol. 121 Eds: Weissel, J.Peirce, J.Taylor, E.Alt, J. p. 77-123 | . |
Notice: This catalogue page may contain unedited data.
|
Species Acarinina pentacamerata Subbotina 1947 |
|
|
|
| Diagnosis / Definition: |
Pearson et al. (2006):
DESCRIPTION.
Tyye of wall: Densely muricate on both sides,
normal perforate, nonspinose.
Test geometry: Low-trochospiral; generally 5
(ranging from 4 1/2-6 or 7) rounded, inflated chambers,
increasing gradually in size in last whorl; periphery
weakly lobate; umbilicus generally small, deep with
concentration of muricae around circumumbilical region;
aperture a low umbilical-extraumbilical slit; 10-12
chambers arranged in 217fwhorls; early chambers
elevated slightly above plane of final whorl; intercameral
sutures weakly curved, tangential to peripheral margin
in early chambers of last whorl; in edge view test is
weakly biconvex, peripheral margin rounded;
intercameral sutures radial, weakly retorse along rounded
peripheral margin.
Size: Largest diameter 0.40-0.50 mm; thickness
0.20-0.25 mm. |
| Discussion / Comments: |
Toumarkine & Luterbacher (1985):
The relatively large test has a flattened spiral and an inflated umbilical side. The 5 to 8 globular chambers of the last whorl increase gradually in size. The umbilicus is wide and deep.
Acarinina aspensis (Colom, 1954) and A. pentacamerata (Subbotina, 1947) are closely interrelated by transitional forms and are considered by several authors (e.g. Stainforth et al., 1975) as synonyms, whereas others (e.g. Hillebrandt, 1976; Blow, 1979) keep them separated.
Van Eijden & Smit (1991):
Remarks. Intermediate forms between this species and A. broedermanni and A. gravelli occur, with some intergrading with the A. coalingensis plexus.
Pearson et al. (2006):
DISTINGUISHING FEATURES.-
Compact, strongly muricate test with 5 globular, inflated chambers in last whorl.
DISCUSSION.-
The taxonomic history of Acarinina
pentacamerata (Subbotina) is extremely complex and
not without a considerable degree of uncertainty. We
attempt a reconstruction here of this history in an effort
to bring nomenclatural stability to a much (ab)used
taxon.
l. In 1936, Subbotina mentioned and illustrated
(her pl. 3, figs. 7-9) a new variety Globorotalia crassa
(d'0rbigny) var.pentacamerata Subbotina. In failing to
describe it, the form was instantly rendered nomen
nudum according to the International Rules of Zoological
Nomenclature, art. 25 (c), 1-2. The illustrated specimen
is of a tightly coiled (involute) individual with 6
chambers in the final whorl (which may or may not be
related to the Acarinina lodoensis-broedermanni group,
cf. Blow (1979, p. 940) and was described from the
"Globorotalia crassaformis Zone" (= probably equivalent to Zone E7 of this work). Krasheninnikov
and others (1988, pl. 8, fig. 8) figured as A.
pentacamerata a specimen from the lower Eocene of
the Campbell Plateau, south-west Pacific Ocean that is
virtually identical with Subbotina's (1947) strongly
involute holotype figure.
2. In 1947, Subbotina formally described and
illustrated Globorotalia pentacamerata for the first time.
Three specimens were figured. The holotype (pl. 7, figs.
15-1 7) was recorded from the Globorotalia crassaformis
Zone (which was considered middle Eocene in age but
which is in fact probably stratigraphically equivalent to
lower Eocene Zone E7 of this study). Two paratypes
(her pl. 7, figs. 12-14 and pl. 9, figs. 24-26) were from
the lower Eocene "Globorotalia velascoensis Zone" of
(presumed) early Eocene age (the latter zone was
subsequently termed, in 1953, the "Zone of conical
globorotaliids", and is characterized by Morozovella
aragonensis [Nuttall] and M. caucasica [Glaessner]).
However, Subbotina (1 947, 1953) consistently
misidentified M. caucasica with M. velascoensis which
accounts for the persistent inisuse of the term G.
velasacoensis Zone in early literature (see further
discussion in Blow, 1979, p. 993-996; Berggren and
Norris, 1997, p. 75-76 and under Morozovella caucasica,
Chapter 11).
3. It is doubtful/uncertain whether the three
specimens illustrated in 1947 are of the same species.
The form figured on pl. 7, figs. 24-26 by Subbotina
(1 953) shows the distinct lateral separation of chambers
peripherally which is characteristic of Bolli's (1957b)
Globigerina angulosa (=Acarinina angulosa). Indeed,
Subbotina's specimen is almost identical to that figured
by Bolli (1957a, pl. 35, figs. 8a-c) from the Globorotalia
palmerae Zone. There may be some question as to
whether Bolli's specimen from the G. palmerae Zone is
conspecific with that figured (Bolli, 1957a, pl. 16, figs.
4-6) from the type locality of the Globorotaliformosa
formosa Zone of Trinidad. They are considered
conspecific here.
4. The paratype specimen figured by Subbotina
(1 947, pl. 7, figs. 12-14) shows the characters that have
subsequently come to be associated with Acarinina
pentacamerata as elucidated subsequently by Subbotina
in 1953. It is curious that Subbotina (1947, p. 128)
mentions that the "specimen described was found along
the Kuban River". This would presumably refer to the
specimen illustrated on pl. 9, figs. 24-26 (from the Kuban
River section) in as much as the holotype (pl. 7, figs. 15- 17) and paratype (pl. 7, figs. 12-14) were recorded from
the Khieu and Sunzha Rivers, respectively.
5. In 1953, Subbotina illustrated a number of
specimens which she referred to Acarinina
pentacamerata (Subbotina) including in the synonymy
the specimens illustrated in her earlier (1947) work, but
making no reference to the specimens illustrated on her
pl. 23, figs. 8a-c and pl. 24, figs. la-5c, all from the
Zone of conical globorotaliids- and if we ignore/
exclude the smaller upper Paleocene forms (pl. 24, figs.
6a-8c) and the anomalous 8-chambered acarininid (pl.
24, figs. 9a-c) from the G. marginodentata Subzone, it
would appear that we have an homogenous group of
morphotypes referable to a single taxon. Blow (1 979, p.
940) noted that he based his interpretation of
pentacamerata on Subbotina (1947, pl. 7, figs. 12-14)
and he represented this concept with a specimen he
illustrated on pl. 135, fig. 5 frop Zone P8b (=Zone E5
of this work). The specimens illustrated by Subbotina
(1953) and listed above all show a close similarity to
that figured by her in 1947 pl. 7, figs. 12-14. It is
interesting that none conform closely, let alone remotely,
to the holotype illustration of 1936/1947. One thing is
clear: Subbotina (1953) did not base her concept of A.
pentacamerata on her (earlier illustrated) holotype of
the taxon.
6. The holotype and paratype specimens of A.
pentacamerata from Subbotina (1936/1947) were
missing from the micropaleontologic collections of
VNIGRI (Leningrad/St. Petersburg) on the occasion of
several visits there by WAB in 1962, 1963 and in the
1970s. It is possible that they were lost or destroyed
during the siege of Leningrad (1941-1 943). On the other
hand, all the specimens illustrated by Subbotina (1953)
were examined during these visits and the taxononiic
statements above reflect these observations. Thus the
concept of A. pentacamerata in the work of one of us
(WAB) has been based on these specimens. The 5-7 rounded chambers, relatively wide umbilicus and weakly
developed circum-umbilical shoulder distinguish this
species from associated forms in the lower Eocene.
7. In as much as the holotype and paratypes of
this taxon have been lost and it is virtually impossible
to ascertain with certainty its taxonomic identity in terms
of modem nomenclature, it would appear desirable, in
the interest of nomenclatural stability, to base a concept
of A. pentacamerata on the forms illustrated by
Subbotina (1953) listed above and to designate a neotype
from this series. Accordingly, based on observations of
the material at VNIGRI, we designate as neotype the
specimen illustrated on pl. 23, figs. 8a-c (no. 3088 in
the micropaleontological collections at VNIGRI) from
the Zone of conical globorotaliids, Green Formation,
Kuban River section, North Caucasus.
8. A relatively large, robust morphotype
exhibiting more relaxed, evolute coiling exposing1
opening the umbilical region has been described as
Acarinina pentacamerata (Subbotina) var camerata by
Khalilov, 1956 (see also Blow, 1979, p. 91 7). Placed in
the synonymy of A. pentacamerata by Berggren (1977)
and Berggren and Norris (1997), we maintain this view
here and view this morphology as transitional to
aspensis.
PHYLOGENETIC RELATIONSHIPS.-
Evolved from
Acarirzina interposita Subbotina and probably gave rise
to A. aspensis (Colom) and A. collactea (Finlay).
STRATIGRAPHIC RANGE.-
Zone E5 to Zone E7.
Given the intricate taxonomic discussion above, and in
the light of our selection of a neotype, it is necessary to
review the range of A. pentacamerata as described in
Subbotina's papers. Subbotina (1 947) designated as the
holotype of A. pentacamerata a specimen from the
Globorotalia crassaformis Zone. This level is probably
equivalent to Zone E7. She subsequently (1953, p. 234, table 3, p. 29) showed it to range from the G. crassata
Subzone of the Zone of compressed globorotaliids (~/=
Zone P5-E3) through the Zone of conical globorotaliids
(~/= Zones E4-E6), but observed that this species reached
its acme of development in the Zone of conical
globorotaliids. However, in her chart showing the
suggested phylogeny of the acarininids (Subbotina, 1953,
p. 153, fig. 8) Subbotina showed A. pentacamerata
evolving from A. interposita Subbotina at the base of
the G. marginodentata Subzone (~/= Zones E4-E5) and
ranging to the top of the Zone of conical globorotaliids.
She mentioned (1953, p. 234) that the forms from the
uppermost Paleocene of Mangyshlak Peninsula
(illustrated as her pl. 24, figs. 6a-8c) differed from the
lower Eocene forms in their significantly smaller size,
indicating that she probably harbored some doubts/
reservations on the conspecificity of the two groups (see
discussion above).
GEOGRAPHIC DISTRIBUTION.-
Essentially global
distribution in the early Eocene; not reliably reported
from high austral latitudes.
STABLE ISOTOPE PALEOBIOL0GY.-
No data
available
REPOSITORY.-
Holotype and original paratypes
presumed lost. Neotype (Subbotina, 1953, pl. 23, figs.
8a-c) from lower Eocene Zone of conical globorotaliids,
Green Formation, Kuban River section, North Caucasus,
designated here. |
| Systematics: |
1
Superregnum Eukaryota
Regnum Protoctista
Phylum Ciliophora
Subphylum Postciliodesmatophora
Ordo Globigerinida
Superfamilia Globorotaliaceae
Superfamilia Nonionacea
Familia Truncorotaloididae
Genus Acarinina
Species Acarinina pentacamerata
15
Classis Foraminifera
Genus Acarinina
Species Acarinina broedermanni
Species Acarinina pentacamerata
32
Ordo Foraminiferida
Familia Globorotaliidae
Genus Acarinina
Species Acarinina pentacamerata
35
Ordo Foraminiferida
Superfamilia Globigerinaceae
Familia Truncorotaloididae
Genus Acarinina
Species Acarinina pentacamerata
|
| Synonym list: |
Toumarkine & Luterbacher (1985):
Van Eijden & Smit (1991):
Pearson et al. (2006):
1936 Globorotalia crassa pentacamerata Subbotina. - Subbotina : (not described, but illustrated, pl. 3: figs. 7-9; nomen
nudum; holotype by subsequent designation in 1947);
[Globorotalia crassaformis Zone, Khieu River section,
northern Caucasus]
p 1947 Globorotalia pentacamerata Subbotina. - Subbotina : p. 128-129 pl. 7, fig. 15-17 (holotype by subsequent
designation = 1936, pl. 3: figs. 7-9);
pl. 7, fig. 12-14 [Sunzha River, northwest Caucasus]
p 1953 Acarinina pentacamerata Subbotina. - Subbotina : p.233 pl. 23, fig. 8a, b;
pl. 24, fig. 1a-c [Zone of conical globorotaliids, Kuban River section, northern Caucasus];
pl. 24: fig. 2a-c [Zone of conical globorotaliids, Gubs River section, northern Caucasus];
pl. 24: fig. 3a-5c [Zone of conical globorotaliids, vicinity of Nal'chik, Khieu
River section, northern Caucasus]
1956 Acarinina pentacamerata Subbotina. - Shutskaya : pl. 3; fig. 6a-c [G. aragonensis Zone, vicinity of Nal'chik,
Cherkessk Fm., northern Caucasus]
p 1960 Globigerina mckannai White. - Berggren : p.68 pl. 1, fig. 4 [lower Eocene, Hollbecker Berg,
Germany];
pl. 9, fig. 4;
pl. 10, fig. 1;
text fig. 7 [lower Eocene Rosnaes Clay, Rogle Klint, Denmark] [Not White, 1928]
1962 Acarinina pentacamerata Subbotina. - Berggren : p.124 pl. 1; fig. 24-26 [lower Eocene Zone P7INP12,
Hollbecker Berg, north-west Germany]
1963 Acarinina pentacamerata Subbotina. - Kraeva : p.152 pl. 31; fig. 6a-b [middle Eocene, Russian Platform, Ukraine]
1965 Globorotalia pentacamerata Subbotina. - Proto Decima & Zorzi : p.27 pl. 2; fig. 4a-5c [G. aragonensis Zone, Molinetto
di Pederobba, western Trevigiano, Italy]
1965 Acarinina pentacamerata Subbotina. - Hillebrandt : p.344 pl. 5; fig. 10a-c [G. palmerae
Zone, Agost, Alicante Province, Spain]
1975 Globorotalia pentacamerata Subbotina. - Stainforth et al. : p. 212-213 text-fig. 1-2 (reillustration from literature); fig. 4-5 [lower Eocene of northern
Caucasus]
1979 Globorotalia (Acarinina) camerata Khalilov. - Blow : p.917 pl. 135, fig. 6 [ZoneP8b, DSDP Site 47, Shatsky
Rise, northwest Pacific Ocean];
pl. 156, figs. 5 and 6 [Zone P10, KANE 9, piston core 42, Endeavour Seamount, equatorial Atlantic Ocean]
1983 Globorotalia pentacamerata Subbotina. - Pujol : p.652 pl. 5; fig. 3 [ Zone P10,
DSDP Hole 516F, 7314, 148-150 cms; Rio Grande Rise,
southern Atlantic Ocean]
1985 Acarinina pentacamerata Subbotina. - Snyder & Waters : p.443 pl. 12; fig. 12-14 [Zone PlO, DSDP Site 548A, Goban Spur, north-east
Atlantic Ocean]
1985 Acarinina pentacamerata Subbotina. - Toumarkine & Luterbacher : p.116 text-fig. 17.4-5 (reillustration from literature)
1988 Acarinina pentacamerata Subbotina. - Krasheninnikov et al. : p.97 pl. 8; fig. 10-12 [G. aragonensis Zone, DSDP Site 277,
Campbell Plateau]
1990 Acarinina pentacamerata Subbotina. - Stott & Kennett : p.559 pl. 45; fig. 9, 10 [Zone AP6b, ODP Site 690B, Maud Rise,
Southern Ocean]
1991 Acarinina pentacamerata Subbotina. - Huber : p.439 pl. 2; fig. 6-8 [Zone
AP7, ODP Hole 738C, southern Indian Ocean]
2000 Acarinina pentacamerata Subbotina. - Warraich et al. : p.293 fig. 17.16-18 [Zone P7, Rakhi Nala River section, Sulaiman Range,
Pakistan]
2001 Acarinina pentacamerata Subbotina. - Warraich & Ogasawara : p.27 fig. 7.1-3 [Zone P7, Dungan Fm., Rakhi Nala River section,
Sulaiman Range, Pakistan]
2006 Acarinina pentacamerata Subbotina. - Pearson et al. : p.299 pl. 9.15; fig. 1-16 (Pl. 9.14, Figs. 1-3: designed neotype; 5-7: new SEMs
of topotype of Globorotalia crassa d'Orbigny
pentacamerata Subbotina)
|
| Stratigraphy - absolute ages: |
FAD: 50.8 ± 0 [Ma], Berggren et al. (1995)
|
| References: |
Subbotina,N.N. (1936):
Stratigraphie du Paleogene inferieur et du Cretact superieur du Caucasc du Nord d'apres la fauna de Foraminiferes . Trudy Neftyannoi Razvedochnyi Institut, ser. A Vol. 96 p. 32
Subbotina,N.N. (1947):
Foraminifery datskikh i paleogenovykh otlozhenii severnogo Kavkaza.
In: Mikrofauna neftyanykh mestorozhdenii Kavkaza, Emby I Srednei Azii Vol. 1 p. 39-160
Subbotina,N.N. (1953):
Iskopaemye foraminifery SSSR (Globigerinidy, Khantkenininidy i Globorotaliidy) . Trudy Vsesoyznogo Nauchno-Issledovatel'skogo Geologo-razvedochnogo Instituta (VNIGRI) Vol. 76 p. 296
Shutskaya,E.K. (1956):
Stratigrafiya nizhnikh gorizontov paleogena Tsentral'nogo Predkavkaz'ya po foraminiferam . Trudy Instituta Geologii Nauk Akademiya SSSR Vol. 164(70) p. 3-114
Khalilov,D.M. (1956):
O pelagicheskoy faune foraminifer Paleogenovykh otlozheniy Azerbaydzhana . Trudy Instituta Geologii, Akademiya Nauk Azerbaydzhanskoy SSR Vol. 17
Bolli,H.M. (1957):
The genera Globigerina and Globorotalia in the Paleocene-Lower Eocene Lizard Springs Formation of Trinidad, B.W.I . Bulletin of the U.S. National Museum Vol. 215 p. 61-82
Berggren,W.A. (1960):
Some planktonic Foraminifera from the Lower Eocene (Ypresian) of Denmark and northwestern Germany . Stockholm Contribution in Geology Vol. 5 p. 41-108
Said,R. (1960):
Planktonic foraminifera from the Thebes Formation, Luxor, Egypt . Micropaleontology Vol. 6 p. 277-286
Pokorny,V. (1960):
Microstratigraphie et biofacies du flysch carpatique de la Moravika meridionale (Tchecoslovaquie) . Revue de l' Institut Francaise du Petrole Vol. 15 p. 1099-1141
Said,R. and Kerdany,M.T. (1961):
The Geology and Micropaleontology of the Farafra Oasis, Egypt . Micropaleontology Vol. 7 p. 317-336
Berggren,W.A. (1962):
Some Planktonic Foraminifera from the Maestrichtian and Type Danian Stages of Southern Scandinavia . Stockholm Contributions in Geology Vol. 9(1)
Hillebrandt,v.A.. (1962):
Das Paleozän und seine Foraminiferenfauna im Becken von Reichenhall und Salzburg . Bayerische Akademie Wissenschaft, Mathematischen-Naturwissenschaften Klasse Vol. 108 p. 188 p.
Kraeva,E.Y.. (1963):
Introduction states that Kraeva wrote section(s) dealing with stratigraphy and description of Palcogene to the exclusion of Paleocene smaller foraminifera.
In: Atlas kharakterniykh foraminifer yuryi, mela I paleogena platformennoi chasti Ukrainyi Eds: Kaptarenko-Chernousova, O.K..Gol'Yak, L.M.N..Zernetskii, B.F..Kraeva, E.Y.A..Lipnik, E.C.. p. 200 p.
Proto Decima,F. and Zorzi,P. (1965):
Studio micropaleontologico-stratigrafico della serie Cretaceo-Terziaria del Molinetto di Pederroba (Treviggiano occidentale) . Memorie degli Instituti di Geologia e Mineralogia dell'Universita di Padova Vol. 25 p. 44pp
Hillebrandt,v.A.. (1965):
Los foraminiferos planctonicos, nummulitidos y coccolitoforidos de la zona de Globorotalia palmerae del Cuisiense (Eoceno Inferior) en el SE de Espania, (provincias de Murcia y Alicante) . Revista Espanola de Micropaleontologia Vol. 8 p. 323-394
Samuel,O.. (1972):
New species of planktonic foraminifers from the Paleogene of the west Carpathian in Slovakia (Czechoslovakia) . Zbornik Geologick"ck Vied Západné Karpaty Vol. 17 p. 165-221
Fleisher,R.L. (1974):
Cenozoic planktonic foraminifera and biostratigraphy, Arabian Sea, Deep Sea Drilling Project, Leg 23A.
In: Initial Reports of the Deep Sea Drilling Project Vol. 23 Eds: Whitmarsh, R.B.Weser, O.E.Ross, D.A. p. 1001-1072
Stainforth,R.M.; Lamb,J.L.; Luterbacher,H.P.; Beard,J.H. and Jeffords,R.M. (1975):
Cenozoic planktonic foraminiferal zonation and characteristics of index forms . Paleontological ContributionsArticle 62 p. 425
Hillebrandt,A. (1976):
Los formainiferos planctonicos, nummulitidos y coccolitoforidos de las zona de Globorotalia palmerae del Cuisiense (Eoceno inferior) en el ES de Espana (Provincias de Murcia y Alicante) . Revista Espanol de Micropaleontologia Vol. 8 p. 323-394
Blow,W.H. (1979):
The Cainozoic Globigerinida. 3 Vols p. 1413 pp
Pujol,C. (1983):
Cenozoic Planktonic Foraminiferal Biostratigraphy of the Southwestern Atlantic (Rio Grande Rise): Deep Sea Drilling Project Leg 72.
In: Initial Reports of the Deep Sea Drilling Project Vol. 72 Eds: Barker, P.F.Johnson, D.A. p. 623-673
Toumarkine,M. and Luterbacher,H.P. (1985):
Paleocene and Eocene Planktic Foraminifera.
In: Plankton Stratigraphy p. 87-154
Snyder,S.W. and Waters,V.J. (1985):
Cenozoic planktonic foraminiferal biostratigraphy of the Goban Spur region.
In: Deep Sea Drilling Project Vol. 80
Krasheninnikov,V.A.; Serova,M.Y.A.. and Basov,I.A. (1988):
Stratigrafiya I planktonnyic foraminiferyi paleogena: vyisokikh shirot Tikhogo okeana . Akademiya Nauk SSSR, Trudy Vol. 429 p. 120
Stott,L.D. and Kennett,J.P. (1990):
Antarctic Paleogene planktonic foraminifer biostratigraphy: ODP Leg 113, Sites 689 and 690.
In: Proceedings of the Ocean Drilling Program Vol. 113 p. 549-569
Huber,B.T. (1991):
Paleogene and early Neogene planktonic foraminifer biostratigraphy of Sites 738 and 744, Kerguelen Plateau (southern Indian Ocean).
In: Proceedings of the Ocean Drilling Program, Scientific Results Vol. 119 Eds: Leckie, R.M.Sigurdsson, H.Acton, G.D.Draper, G. p. 427-449
Van Eijden,A.J.M. and Smit,J. (1991):
Eastern Indian Ocean Cretaceous and Paleogene quantitative biostratigraphy.
In: Proceedings of the Ocean Drilling Program, Scientific Results Vol. 121 Eds: Weissel, J.Peirce, J.Taylor, E.Alt, J. p. 77-123
Berggren,W.A.; Kent,D.V.; Swisher,C.C. and Aubry,M.P. (1995):
A revised Cenozoic Geochronology and Chronostratigraphy.
In: Geochronology Time Scales and Global Stratigraphic Correlation, SEPM Special Publication Vol. 54
Warraich,M.Y..; Ogasawara,K.. and Nishi,H.. (2000):
Late Paleocene to early Eocene planktonic foraminiferal biostratigraphy of the Dungan Formation, Sulaiman Range, Central Pakistan . Paleontological Research Vol. 4 p. 275-301
Warraich,M.Y.. and Ogasawara,K.. (2001):
Tethyan Paleocene-Eocene planktic foraminifera from the Rakhi Nala and Zinda Pir land sections of the Sulaiman Range, Pakistan . Science Reports of the Institute of Geoscience University of Tsukuba, section B Vol. 22 p. 1-59
Pearson,P.N.; Olsson,R.K.; Hemleben,C.; Huber,B.T. and Berggren,W.A. (2006):
Atlas of Eocene Planktonic Foraminifera. p. 1-513
|
This work is licensed under a Creative Commons Attribution 2.5 License.
|
|
Taxon Concept provided by