pforams@mikrotax - Acarinina primitiva

Citation: Acarinina primitiva (Finlay 1947)

Basionym: Globoquadrina primitiva

Synonyms:

Globoquadrina primitiva Finlay 1947:291, pl. 8: figs. 129-134 [middle Eocene, G. index Zone, Hampden Beach Fm., South Island, New Zealand].—Hornibrook, 1953:437, pl. 1: fig. 1 (reillustration from literature).—Jenkins, 1965a:269, pl. 1: fig. 3a-c (outline drawings of holotype).
Globigerina primitiva (Finlay).—Brönniman, 1952:11, pl. 1: figs. 10-12 [Trinidad; Soldado and Lizard Springs Fms.].—Hornibrook, 1961:148 [middle Eocene, G. index Zone, Hampden Beach Fm., South Island, New Zealand]. —Postuma, 1971:154, 7 figured specimens [middle Eocene Hampden Fm., Otago Province, South Island, New Zealand, lower Eocene].
Pseudogloboquadrina primitiva (Finlay).—Jenkins, 1965b:1124-1125, fig. 9, nos. 81-86 (new illustrations of holotype and paratypes) [middle Eocene, New Zealand].— Jenkins, 1971:170, pl. 18: figs. 555-557 (holotype refigured), 558-560 (paratype refigured), and 561 (other specimen) [middle Eocene, New Zealand].— Krasheninnikov and Basov, 198:840, pl. 9: figs. 4-7 [middle Eocene, DSDP Hole 512, Ewing Bank, South Atlantic Ocean].
Globorotalia (Acarinina) primitiva (Finlay)—Blow, 1979:949, pl. 143: figs. 6-9 [Zone P8b, lower Eocene, DSDP Site 20C, South Atlantic Ocean]; pl. 249: figs. 1-4 [topotypes, middle Eocene Hampden Fm., Otago Province, New Zealand].
Acarinina primitiva (Finlay).—Stott and Kennett, 1990:559, pl. 6: figs. 11,12 [Zone AP8, lower Eocene, ODP Hole 689B, Maud Rise, Weddell Sea, Antarctic Ocean].— Huber, 1991: 439, pl. 3: fig. 1 [middle Eocene Zone AP10, ODP Site 738, Kerguelen Plateau, southern Indian Ocean].—Berggren, 1992:563, pl. 2: figs. 4,5 [Zone P6-7, ODP Site 748, Kerguelen Plateau, southern Indian Ocean].—Pearson and others, 1993, pl. 1: fig. 19 [middle Eocene Zone P11-P12, DSDP Hole 523, South Atlantic Ocean].—Lu and Keller, 1993, pl 3: figs. 1,2 [lower Eocene Zone AP7, ODP Hole 738C, Kerguelen Plateau, southern Indian Ocean].—Basov, 1995:165, pl. 1: figs. 11-13 [ODP Hole 883B, Detroit Seamount, north-west Pacific Ocean; n.b: not recorded at this level in Table 1, p. 160].
Not Globigerina primitiva (Finlay).—Bolli, 1957a:71, pl. 15:figs. 6-8 [Gt. rex Zone, Trinidad].—Stainforth and others, 1975:215, fig. 75.1 (reillustration from Bolli and others, 1957), figs. 75.2-3 [G. formosa formosa Zone, Lodo Fm., California]. ( =Acarinina coalingensis.)
Not Globorotalia (Acarinina) primitiva (Finlay).— Hillebrandt, 1962:141, pl. 14: figs. 2, 4 [Zone G, lower Eocene, Austria]. ( =Acarinina coalingensis.)

Taxonomic discussion: The outward, superficial morphologic similarity of the type species primitiva to that of the Neogene globoquadrinid form Globoquadrina dehiscens led Jenkins (1965b) to create the generic name Pseudogloboquadrina for Eocene morphotypes, but the morphology is similar to other Paleogene acarininids and this name is unnecessary (see also Blow, 1979, p. 950).
Acarinina primitiva is the dominant acarininid in middle Eocene austral assemblages and its disappearance/extinction in the late middle Eocene (?Chron C18n) is a useful datum level for regional correlation. See discussion in Berggren and Norris (1997, p. 69), Olsson and others (1999, p. 437) and above for A. coalingensis for further relevant data. [Berggren et al. 2006]

Distinguishing features:
Parent taxon (Acarinina): Moderate to low trochospire; chambers ovoid, usually 4-6 in final whorl.
Wall muricate with pustules on umbilical shoulders;
This taxon: Like A. coalingensis but with triangular (broadly wedge-shaped) chambers and straight, incised, sutures on the umbilical side.

Description

Distinguished by triangular (broadly wedge-shaped) chambers; asymmetrically situated aperture resulting in distinct projection of umbilical face of last chamber over the umbilicus. Acarinina coalingensis has more rounded, inflated chambers than A. primitiva and lacks the straight, incised intercameral sutures on the umbilical side. [Berggren et al. 2006]

Robust, compact, subquadrate, strongly and bluntly muricate test; 3-4 triangular-shaped chambers in last whorl); chambers arranged at distinct right angles to each other and usually separated by distinct and incised sutures (particularly between preantepenultimate and antepenultimate chambers) on the umbilical side; umbilicus narrow, deep; aperture asymmetrically placed at base of last chamber, interiomarginal, umbilical-extraumbilical; high, smooth or beaded (but not muricate) face to final chamber above aperture, chambers on spiral side tangentially longer than broad; sutures curved, generally obscured by muricate ornament; peripheral margin subangular in edge view; [Berggren et al. 2006]

Coarsely muricate, often with relatively smooth umbilical face to final chamber, normal perforate, nonspinose. [Berggren et al. 2006]

Maximum diameter of holotype 0.29mm, thickness 0.26 mm. [Berggren et al. 2006]

Biogeography and Palaeobiology

Essentially temperate-high latitude (austral; South Indian Ocean and Subantarctic Ocean distribution; less commonly reported in low latitudes (Caribbean, Atlantic, Indo-Pacific). [Berggren et al. 2006]
Aze et al. 2011 summary: Middle to high latitudes, less commonly in low latitudes; based on Berggren et al. (2006b)

No data available. [Berggren et al. 2006]
Aze et al. 2011 ecogroup 1 - Open ocean mixed-layer tropical/subtropical, with symbionts; based on comparison with other species of the genus.

This form descended from Acarinina coalingensis in the early Eocene by means of developing a more subquadrate test and concomitant sutural incision and chamber separation in the final whorl. [Berggren et al. 2006]

Most likely ancestor: Acarinina coalingensis - at confidence level 4 (out of 5). Data source: Berggren et al. (2006) fig9.2.

Biostratigraphic distribution

Geological Range:
Notes: Zone E6 to Zone E13. Berggren and others (2000) recorded the lowest/earliest occurrence of A. primitiva in association with the lowest/ earliest A. coalingensis in Zone P4c and Chron C25r and C25n at DSDP Site 384 in the northwest Atlantic Ocean (see also compilation in Berggren and others, 1995, p. 155); we now regard these records as referable to A. coalingensis. The last occurrence datum has been fixed by Huber (1991) to lower Zone AP11 at Sites 738 Kerguelen Plateau, by Stott and Kennett (1990) to a level in mid-Chron C18n at ODP Site 689 on Maud Rise and by Berggren (1992) to a level within/slightly above questionable Chron 18n at Site 748, Kerguelen Plateau, which is approximately equivalent to Zone E13 in the (sub)tropics. [Berggren et al. 2006]
Last occurrence (top): within E13 zone (37.99-39.97Ma, top in Bartonian stage). Data source: Eocene Atlas
First occurrence (base): within E6 zone (50.20-50.67Ma, base in Ypresian stage). Data source: Eocene Atlas

Primary source for this page: Berggren et al. 2006 - Eocene Atlas, chap. 9, p. 302

References:

Basov, I. A. (1995). Paleogene planktonic foraminifer biostratigraphy of Sites 883 and 884, Detroit Seamount (Subarctic Pacific). Proceedings of the Ocean Drilling Program, Scientific Results. 145: 157-170. gs

Berggren, W. A. & Norris, R. D. (1997). Biostratigraphy, phylogeny and systematics of Paleocene trochospiral planktonic foraminifera. Micropaleontology. 43(supplement 1): 1-116. gs

Berggren, W. A. (1992). Paleogene planktonic foraminifer magnetobiostratigraphy of the southern Kerguelen Plateau (sites 747-749). Proceedings of the Ocean Drilling Program, Scientific Results. 120: 551-568. gs

Berggren, W. A., Kent, D. V., Swisher, I. , C. C. & Aubry, M. -P. (1995b). A revised Cenozoic geochronology and chronostratigraphy. In, Berggren, W. A., Kent, D. V., Aubry, M. -P. & Hardenbol, J. (eds) Geochronology, Time Scales and Global Stratigraphic Correlations. SEPM (Society for Sedimentary Geology) Special Publication No. 54, 129-212. gs

Berggren, W. A., Pearson, P. N., Huber, B. T. & Wade, B. S. (2006b). Taxonomy, biostratigraphy, and phylogeny of Eocene Acarinina. In, Pearson, P. N., Olsson, R. K., Hemleben, C., Huber, B. T. & Berggren, W. A. (eds) Atlas of Eocene Planktonic Foraminifera. Cushman Foundation for Foraminiferal Research, Special Publication . 41(Chap 9): 257-326. gs O

Blow, W. H. (1979). The Cainozoic Globigerinida: A study of the morphology, taxonomy, evolutionary relationships and stratigraphical distribution of some Globigerinida (mainly Globigerinacea). E. J. Brill, Leiden. 2: 1-1413. gs

Bolli, H. M. (1957d). The genera Globigerina and Globorotalia in the Paleocene-Lower Eocene Lizard Springs Formation of Trinidad. In, Loeblich, A. R. , Jr., Tappan, H., Beckmann, J. P., Bolli, H. M., Montanaro Gallitelli, E. & Troelsen, J. C. (eds) Studies in Foraminifera. U.S. National Museum Bulletin . 215: 61-82. gs

Bolli, H. M., Loeblich, A. R. & Tappan, H. (1957). Planktonic foraminiferal families Hantkeninidae, Orbulinidae, Globorotaliidae and Globotruncanidae. In, Loeblich, A. R. , Jr., Tappan, H., Beckmann, J. P., Bolli, H. M., Montanaro Gallitelli, E. & Troelsen, J. C. (eds) Studies in Foraminifera. U.S. National Museum Bulletin . 215: 3-50. gs

Brönnimann, P. (1952d). Trinidad Paleocene and lower Eocene Globigerinidae. Bulletins of American Paleontology. 34(143): 1-34. gs

Finlay, H. J. (1947). New Zealand foraminifera: Key species in stratigraphy - no. 5. New Zealand Journal of Science and Technology. 28(5): 259-292. gs

Hillebrandt, A. , von (1962). Das Paleozän und seine Foraminiferenfauna im Becken von Reichenhall und Salzburg. Abhandlungen Bayerischen Akademie der Wissenschaften. 108: 1-182. gs

Hornibrook, N. d. B. (1953). Faunal migrations to New Zealand, I: Immigration of foraminifera to New Zealand during the Upper Cretaceous and Tertiary. New Zealand Journal of Science and Technology. 34: 436-444. gs

Hornibrook, N. d. B. (1961). Tertiary Foraminifera from Oamaru District (N.Z.). Part 1 Systematics and distribution. New Zealand Geological Survey, Paleontological Bulletin. 34(1): 1-192. gs

Huber, B. T. (1991c). Paleogene and Early Neogene Planktonic Foraminifer Biostratigraphy of Sites 738 and 744, Kerguelen Plateau (Southern Indian Ocean). Proceedings of the Ocean Drilling Program, Scientific Results. 119: 427-449. gs

Jenkins, D. G. (1966b). Planktonic foraminiferal zones and new taxa from the Danian to lower Miocene of New Zealand. New Zealand Journal of Geology and Geophysics. 8 [1965](6): 1088-1126. gs

Jenkins, D. G. (1971). New Zealand Cenozoic Planktonic Foraminifera. New Zealand Geological Survey, Paleontological Bulletin. 42: 1-278. gs

Lu, G. & Keller, G. (1993). The Paleocene-Eocene transition in the Antarctic Indian Ocean: Inference from planktic foraminifera. Marine Micropaleontology. 21: 101-142. gs

Pearson, P. N., Shackleton, N. J. & Hall, M. A. (1993). Stable isotope paleoecology of middle Eocene planktonic foraminifera and multi-species isotope stratigraphy, DSDP Site 523, South Atlantic. Journal of Foraminiferal Research. 23: 123-140. gs

Postuma, J. A. (1971). Manual of planktonic foraminifera. Elsevier for Shell Group, The Hague. 1-406. gs

Stainforth, R. M., Lamb, J. L., Luterbacher, H., Beard, J. H. & Jeffords, R. M. (1975). Cenozoic planktonic foraminiferal zonation and characteristics of index forms. University of Kansas Paleontological Contributions, Articles. 62: 1-425. gs O

Stott, L. D. & Kennett, J. P. (1990). The Paleoceanographic and Paleoclimatic signature of the Cretaceous/Paleogene boundary in the Antarctic: Stable isotopic results from ODP Leg 113. Proceedings of the Ocean Drilling Program, Scientific Results. 113: 829-848. gs

test outline:	Subquadrate	chamber arrangement:	Trochospiral	edge view:	Inequally biconvex	aperture:	Umbilical-extraumbilical
sp chamber shape:	Inflated	coiling axis:	Low	periphery:	Muricocarinate	aperture border:	N/A
umb chbr shape:	Inflated	umbilicus:	Narrow	periph margin shape:	Subangular	accessory apertures:	None
spiral sutures:	Strongly depressed	umb depth:	Deep	wall texture:	Coarsely muricate	shell porosity:	Finely Perforate: 1-2.5µm
umbilical or test sutures:	Strongly depressed	final-whorl chambers:	3-4	N.B. These characters are used for advanced search. N/A - not applicable

Acarinina primitiva

Taxonomy

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

References:

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