Toumarkine & Luterbacher (1985):
T. collactea differs from T. rohri in being much smaller, having a less spinose wall and a more compact test. T. collactea is dextrally coiled as opposed to the sinistrally coiled T. rohri. The small sutural apertures on the spiral side at the base of the final chamber occur only occasionally and are visible only in well-preserved specimens.
Jenkins (1985):
This small distinctive species occasionally has small sutural apertures on the spiral side at the base of the final chamber. T. collactea differs from T. rohri in being smaller, having a less spinose wall and a more compact test. It has been recorded from the Early to Late Eocene of New Zealand with a similar range at DSDP Leg 29 Site 277 (Jenkins, 1971, 1975). In South Australia T. collactea has only a short range in the Late Eocene (Lindsay, 1969). |
Finlay,H.J. (1939):
New Zealand foraminifera; key species in stratigraphy, No. 3 . Transactions of the Royal Society of New Zealand Vol. 69 p. 309-29
Finlay,H.J. (1939):
New Zealand foraminifera: key species in stratigraphy No. 2 . Trans. Proc. R. Soc. N.Z. Vol. 69 p. 89-128
Jenkins,D.G. (1985):
Southern mid-latitude Paleocene to Holocene planktic foraminifera.
In: Plankton stratigraphy Eds: Bolli, H.M.Saunders, J.B.Perch-Nielsen, K. p. 263-282
Toumarkine,M. and Luterbacher,H.P. (1985):
Paleocene and Eocene Planktic Foraminifera.
In: Plankton Stratigraphy p. 87-154
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
|
Taxon Concept provided by
