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Subspecies Clavigerinella eocanica jarvisi Cushman 1930


Discussion / Comments:
Toumarkine & Luterbacher (1985):
According to Cushman (1930, p. 19) the chambers of Clavigerinella eocanica jarvisi are more slender than those of C. eocanica eocanica and their outer ends are often pointed. The two subspecies have the same stratigraphic range. Hastigerinella eocanica var. aragonensis Nuttall (Fig. 22.6), published in September 1930, is here considered as a junior synonym though Nuttall distinguished it from H. jarvisi by the more rounded distal ends of the chambers. H. eocanica var. aragonensis is possibly an intermediate form between C. eocanica eocanica and C. eocanica jarvisi.
Systematics:

15
 Classis Foraminifera
  Genus Clavigerinella
   Subspecies Clavigerinella eocanica jarvisi
Synonym list:
Toumarkine & Luterbacher (1985):
1930 Hastigerinella jarvisi Cushman. - Cushman : p.18 pl 3 fig 8 (type reference)
1930 Hastigerinella eocanica var. aragonensis Nuttall. - Nuttall : p.290 pl 24 figs 16-17
1985 Clavigerinella eocanica jarvisi Cushman. - Toumarkine & Luterbacher : p.120 figs 22.7-9
References:

Cushman,J.A. (1930):
Fossil species of Hastigerinella . Contributions from the Cushman Foundation for Foraminiferal Research Vol. 6 p. 17-19

Nuttall,W.L.F. (1930):
Eocene foraminifera from Mexico . Journal of Paleontology Vol. 4 p. 271-293

Toumarkine,M. and Luterbacher,H.P. (1985):
Paleocene and Eocene Planktic Foraminifera.
In: Plankton Stratigraphy p. 87-154
Anonymous: Unedited TaxonConcept data
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