Tetrapyle octacantha group |
 | Photo#: 434
Location: Gulf of California
Sample: VS-R-71, 1-3 cm
Photo by: Richard N. Benson
Comments:
Benson, 1966, pl. 15, fig. 8. Frontal view, eight diagonal spines. Slide VS-R-71a, 1-3 cm. Bar is 100 µm.
|  | Photo#: 435
Location: Gulf of California
Sample: VS-R-64, 1-3 cm
Photo by: Richard N. Benson
Comments:
Benson, 1966, pl. 16, fig. 1. Frontal view; third system of girdles complete. Slide VS-R-64a, 1-3 cm. Bar is 100 µm.
|  | Photo#: 436
Location: Gulf of California
Sample: VS-R-81, 1-3 cm
Photo by: Richard N. Benson
Comments:
Benson, 1966, pl. 15, fig. 10. Lateral view. Slide VS-R-81a, 1-3 cm. Bar is 100 µm.
|  | Photo#: 437
Location: Gulf of California
Sample: VS-R-71, 1-3 cm
Photo by: Richard N. Benson
Comments:
Benson, 1966, pl. 15, fig. 3. Frontal view. Slide VS-R-71a, 1-3 cm. Bar is 100 µm.
|  | Photo#: 438
Location: Gulf of California
Sample: VS-R-71, 1-3 cm
Photo by: Richard N. Benson
Comments:
Benson, 1966, pl. 15, fig. 4. Frontal view. Slide VS-R-71a, 1-3 cm. Bar is 100 µm.
|  | Photo#: 439
Location: Gulf of California
Sample: VS-R-81, 1-3 cm
Photo by: Richard N. Benson
Comments:
Benson, 1966, pl. 15, fig. 5. Frontal view. Slide VS-R-81a, 1-3 cm. Bar is 100 µm.
|  | Photo#: 440
Location: Gulf of California
Sample: VS-R-71, 1-3 cm
Photo by: Richard N. Benson
Comments:
Benson, 1966, pl. 15, fig. 6. Frontal view. Slide VS-R-71a, 1-3 cm. Bar is 100 µm.
|  | Photo#: 441
Location: Gulf of California
Sample: VS-R-71, 1-3 cm
Photo by: Richard N. Benson
Comments:
Benson, 1966, pl. 15, fig. 7. Polar view. Slide VS-R-71a, 1-3 cm. Bar is 100 µm.
|  | Photo#: 442
Location: Gulf of California
Sample: VS-R-81, 1-3 cm
Photo by: Richard N. Benson
Comments:
Benson, 1966, pl. 15, fig. 9. Frontal view; eight diagonal spines and two polar beams. Slide VS-R-81a, 1-3 cm. Bar is 100 µm.
|  | Photo#: 443
Location: Gulf of Clifornia
Photo by: Richard N. Benson
Comments:
Benson, 1966, p. 240:
Figure 18. Tetrapyle octacantha Müller. Three orientations of the trizonal shells illustrating the latticed dimensive girdles, dimensive axes, and gates of the family Pyloniidae.
|  | Photo#: 444
Location: Gulf of California
Sample: VS-R-27b, 1-3 cm
Photo by: Richard N. Benson
Comments:
Benson, 1966, p. 240:
A. Frontal view (PT plane in outline) showing nearly two complete systems of girdles. |  | Photo#: 445
Location: Gulf of California
Photo by: Richard N. Benson
Comments:
Benson, 1966, p. 240:
B. Same specimen as in A, diagrammatic; P1, principal (longest) axis of inner ellipsoidal shell; P2, principal axis of first system of girdles; P3, principal axis of second system of girdles; T1, transverse (intermediate) axis of inner ellipsoidal shell; T2, transverse axis of first system of girdles; T3, transverse axis of second system of girdles; TG1, transverse girdle (first girdle originating from inner ellipsoidal shell) of first system of girdles; TG2, transverse girdle of second system of girdles; LG1, lateral girdle of first system of girdles; LG2, lateral girdle of second system of girdles; SG1, sagittal girdle (last formed girdle of any one system) of first system of girdles; SG2, incomplete sagittal girdle of second system of girdles.
|  | Photo#: 446
Location: Gulf of California
Sample: VS-R-7la, 1-3 cm
Photo by: Richard N. Benson
Comments:
Benson, 1966, p. 240:
C. Polar view (TS plane in outline), the view obtained after rotation of a specimen in frontal view of 90° about the transverse axis; transverse girdle of the second system of girdles complete but lateral girdle rudimentary.
|  | Photo#: 447
Location: Gulf of California
Photo by: Richard N. Benson
Comments:
Benson, 1966, p. 240:
D. Same specimen as in C, diagrammatic; S1 sagittal axis (shortest) of inner ellipsoidal shell which is seldom visible in this orientation; S2, sagittal axis of transverse girdle of first system of girdles; S3, sagittal axis of transverse girdle of second system of girdles.
|  | Photo#: 448
Location: Gulf of California
Sample: VS-R-8la, 1-3 cm
Photo by: Richard N. Benson
Comments:
Benson, 1966, p. 240:
E. Lateral view (PS plane in outline), the view obtained after rotation of a specimen in frontal view of 90° about the principal axis; second sagittal girdle incomplete.
|  | Photo#: 449
Location: Gulf of California
Photo by: Richard N. Benson
Comments:
Benson, 1966, p. 240:
F. Same specimen as in E, diagrammatic.
|  | Photo#: 540
Location: Gulf of California
Sample: VS-R-71
Photo by: Bjørklund & Benson 2003
Comments:
Picture taken from slide VS-R-71a, 1-3 cm. Bar is 100 µm. |  | Photo#: 541
Location: Gulf of California
Sample: VS-R-71
Photo by: Bjørklund & Benson 2003
Comments:
Picture taken from slide VS-R-71a, 1-3 cm. Bar is 100 µm. |  | Photo#: 542
Location: Gulf of California
Sample: VS-R-81
Photo by: Bjørklund & Benson 2003
Comments:
Picture taken from slide VS-R-81, 1-3 cm. Bar is 100 µm. |  | Photo#: 543
Location: Gulf of California
Sample: VS-R-27
Photo by: Bjørklund & Benson 2003
Comments:
Picture taken from slide VS-R-27b, 1-3 cm. Bar is 100 µm. |  | Photo#: 544
Location: Gulf of California
Sample: VS-R-27
Photo by: Bjørklund & Benson 2003
Comments:
Picture taken from slide VS-R-27b, 1-3 cm. Bar is 100 µm. |  | Photo#: 545
Location: Gulf of California
Sample: VS-R-71
Photo by: Bjørklund & Benson 2003
Comments:
Picture taken from slide VS-R-71a, 1-3 cm. Bar is 100 µm. |  | Photo#: 1793
Location: Japan Sea
Sample: GH872-308, 1, 0-2 (core t
Latitude: 35°57.6'N
Longitude: 134°26.0'E
Photo by: T. Itaki
Comments:
Photographs have been taken from the same specimen. The upper picture is apical view of the lower one. |
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