pforams@mikrotax - Acarinina soldadoensis

Citation: Acarinina soldadoensis (Brönnimann 1952)

Basionym: Globigerina soldadoensis

Synonyms:

Globigerina soldadoensis Bronnimann, 1952:7, 9, pl. 1: figs. 1-9 [Lizard Springs Fm., Trinidad; type locality of Globigerina velascoensis Zone of Bolli, 1957a:64 = Zone P5 this paper].—Bolli, 1957a:71, pl. 16: figs. 7-9 [? figs. 10-12] [Globorotalia formosa Zone, upper Lizard Springs Fm., Trinidad]; 1957b: 162, pl. 35: fig. 9a-c [Globorotaliapalmerae Zone, Navet Fm., Trinidad].
Acarinina clara Khalilov, 1956:250, pl. 5: fig. 4 [upper Paleocene, Akhchakumia, northeastern Azerbaizhan].
Globorotalia (Acarinina) soldadoensis (Bronnimann).—Hillebrandt, 1962:142, pl. 14: figs. 5, 6 [Zone G = Zone P6 this paper; Reichenhall-Salzburg Basin, Austro-German border],—Jenkins, 1971:73, pl. 4, figs. 94-98 [Globigerina triloculinoides Zone, Waipawan Stage, Middle Waipara River section, New Zealand].
Acarinina soldadoensis (Bronnimann).—Berggren, 1971b:76, pl. 5: figs. 1-3 [Morozovella velascoensis Zone, DSDP Hole 20C/6/4: 5-7 cm; South Atlantic Ocean].—Huber, 1991b:439, pl. 2: fig. 16 [Zone AP6a, lower Eocene, ODP Hole 738C/I0R: 275.25 msbf; Kerguelen Plateau, southern Indian Ocean].
Muricoglobigerina soldadoensis soldadoensis (Bronnimann).—Blow, 1979:1120, pl. 98: figs. 1-3 [sample FCRM 1670, Zone P5 of Blow, 1979 = Zone P4c this paper; Lindi area, Tanzania], pl. 107: figs. 1-5 [Zone P6 of Blow, 1979; DSDP Hole 20C/6/3: 76-78 cm; South Atlantic Ocean], pl. 109: fig. 8 [Zone P6, DSDP Hole 47.2/8/4: 78-81 cm], pl. 110: fig. 1 [Zone P6, DSDP Hole 47.2/8/4: 78-81 cm], pl. 124: figs. 1, 3, 5 [Zone P7, DSDP Hole 47.2/8/3: 83-85 cm], pl. 131: figs. 1-3, 6 [Zone P8, DSDP Hole 47.2/8/2: 71-73 cm; Shatsky Rise, northwestern Pacific Ocean],—Stott and Kennett, 1990:559, pl. 3: figs. I, 4 [Zone AP5, ODP Hole 689B/22X/5: 110-114 cm; Maud Rise, Weddell Sea, Southern Ocean]. [Olsson et al. 1999]

Taxonomic discussion: This taxon is characterized by a test composed of 4 to 5 chambers arranged in a relatively loose (lax) coil, resulting in a relatively open and deep umbilicus and moderate to strong lateral chamber compression (giving an angulate appearance to the peripheral margin of some chambers), which culminates in the descendant angulate species angulosa. Acarinina clara Khalilov (1956) from the upper Paleocene of Azerbaizhan exhibits the typical lobulate test and elongated chamber morphology ofA. soldadoensis and is herein regarded as a junior synonym of this species. [Olsson et al. 1999]

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: Test low trochospiral, moderately evolute; 4-5 rounded chambers elongated in the axis of coiling; final chamber often reduced in size; lobulate periphery; deep and relatively wide umbilicus; sutures on spiral side deep, chambers often overlapping; moderately to strongly muricate.

Description

Low trochoid, moderately evolute test of 4-5, moderately to strongly muricate, rounded chambers distinctly elongated in the axis of coiling; final chamber often reduced in size; lobulate periphery; deep and relatively wide umbilicus revealing (in some individuals) earlier chambers and their arcuate foramina; sutures on spiral side deep and curved and/or tangential in direction of coiling, chambers often overlapping. [Olsson et al. 1999]

Biogeography and Palaeobiology

This species has a widespread
geographic distribution from equatorial to subantarctic regions (Figure 20). [Olsson et al. 1999]
Aze et al. 2011 summary: Cosmopolitan; based on Olsson et al. (1999)

No data available. [Olsson et al. 1999]
Aze et al. 2011 ecogroup 1 - Open ocean mixed-layer tropical/subtropical, with symbionts. Based on very heavy _¹³C and relatively light _¹⁸O. Sources cited by Aze et al. 2011 (appendix S3): Pearson et al. (1993, 2001a)

Acarinina soldadoensis is a sister taxon to A. mckannai from which it differs in being somewhat more evolute and in having more umbilically elongate chambers. [Olsson et al. 1999]

Biostratigraphic distribution

Geological Range:
Notes: Zone P4c to Zone P9. [Olsson et al. 1999]
The FAD of Acarinina soldadoensis marks the base of zone P4c / top of P4b (Wade et al. 2011)
Last occurrence (top): within E7 zone (45.72-50.20Ma, top in Lutetian stage). Data source: Olsson et al. 1999
First occurrence (base): at base of P4c subzone (0% up, 57.8Ma, in Thanetian stage). Data source: zonal marker (Wade et al. 2011)

Primary source for this page: Olsson et al. 1999 - Atlas of Paleocene Planktonic Foraminifera, p. 50

References:

Berggren, W. A. (1971c). Berggren, W. A. (1971). Paleogene planktonic foraminiferal faunas on Legs I-IV (Atlantic Ocean) JOIDES Deep Sea Drilling Program: a synthesis. In, Farinacci, A. (ed.) Proceedings of the Second Planktonic Conference, Roma 1970. Edizioni Tecnoscienza, Rome 57-77. In, Farinacci, A. (ed.) Proceedings of the Second Planktonic Conference, Roma 1970. Edizioni Tecnoscienza, Rome 57-77. gs

Berggren, W. A., Pearson, P. N., Huber, B. T. & Wade, B. S. (2006b). Berggren, W. A., Pearson, P. N., Huber, B. T. & Wade, B. S. (2006). 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. 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). 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. E. J. Brill, Leiden. 2: 1-1413. gs

Bolli, H. M. (1957d). Bolli, H. M. (1957). 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. 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

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

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

Khalilov, D. M. (1956). Khalilov, D. M. (1956). 0 pelagicheskoy faune foraminifer Paleogenovykh otlozheniy Azerbaydzhana [Pelagic Foraminifera of the Paleogene Deposits of the Azerbaizhan SSR]. Trudy Instituta Geologii, Akademiya Nauk Azerbaidzhanskoi SSR. 17: 234-255. Trudy Instituta Geologii, Akademiya Nauk Azerbaidzhanskoi SSR. 17: 234-255. gs

Olsson, R. K., Hemleben, C., Berggren, W. A. & Huber, B. T. (1999). Olsson, R. K., Hemleben, C., Berggren, W. A. & Huber, B. T. (1999). Atlas of Paleocene Planktonic Foraminifera. Smithsonian Institution Press, Washington, DC. 1-252. Smithsonian Institution Press, Washington, DC. (85): 1-252. gs

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

Soldan, D. M., Petrizzo, M. R., Silva, I. P. & Cau, A. (2011). Soldan, D. M., Petrizzo, M. R., Silva, I. P. & Cau, A. (2011). Phylogenetic relationships and evolutionary history of the Paleogene genus through parsimony analysis. Journal of Foraminiferal Research. 41: 260-284. Journal of Foraminiferal Research. 41: 260-284. gs

Stott, L. D. & Kennett, J. P. (1990). 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. Proceedings of the Ocean Drilling Program, Scientific Results. 113: 829-848. gs

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

Acarinina soldadoensis

Taxonomy

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

References:

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