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Late Maastrichtian Radiolaria from ODP Leg 165 - Site 999B, Colombian Basin
No full textKochhann, Karlos G. D., Baecker-Fauth, Simone, Fauth, Gerson (2013): Late Maastrichtian Radiolaria from ODP Leg 165 - Site 999B, Colombian Basin. Geodiversitas 35 (1): 5-20, DOI: 10.5252/g2013n1a1, URL: http://dx.doi.org/10.5252/g2013n1a
FIG. 2 in Late Maastrichtian Radiolaria from ODP Leg 165 - Site 999B, Colombian Basin
No full textFIG. 2. — Lithostratigraphic profile of ODP Hole 999B, with the location of the radiolarian-rich sample – 999B/60/2W/70-74 cm. Chronostratigraphic and biostratigraphic data from Sigurdsson et al. (1997).Published as part of Kochhann, Karlos G. D., Baecker-Fauth, Simone & Fauth, Gerson, 2013, Late Maastrichtian Radiolaria from ODP Leg 165 - Site 999B, Colombian Basin, pp. 5-20 in Geodiversitas 35 (1) on page 8, DOI: 10.5252/g2013n1a1, http://zenodo.org/record/453801
Mita regina ? (Campbell & Clark 1944
No full textMita regina ? (Campbell & Clark, 1944) (Fig. 4G) FIGURED SPECIMEN. — ULVG-8312. MATERIAL. — One specimen (recovered with the acetic acid method). REMARKS Preservation obscures some characteristics attributed to the species in its original description. Family AMPHIPYNDACIDAE Riedel, 1967Published as part of Kochhann, Karlos G. D., Baecker-Fauth, Simone & Fauth, Gerson, 2013, Late Maastrichtian Radiolaria from ODP Leg 165 - Site 999 B, Colombian Basin, pp. 5-20 in Geodiversitas 35 (1) on pages 10-12, DOI: 10.5252/g2013n1a1, http://zenodo.org/record/453801
Paronaella Pessagno 1971
No full textParonaella ? sp. (Fig. 5G) FIGURED SPECIMEN. — ULVG-7336. MATERIAL. — One specimen (recovered with the hydrogen peroxide method). DESCRIPTION Three-rayed test without bracchiopyle. Rays possibly elliptical in cross-section. Test rough without lateral or central spines. Rays tending to be slender distally and keep practically the same inter-rays angle. Central area slightly elevated. Family HAGIASTRIDAE Riedel, 1971Published as part of Kochhann, Karlos G. D., Baecker-Fauth, Simone & Fauth, Gerson, 2013, Late Maastrichtian Radiolaria from ODP Leg 165 - Site 999 B, Colombian Basin, pp. 5-20 in Geodiversitas 35 (1) on pages 14-16, DOI: 10.5252/g2013n1a1, http://zenodo.org/record/453801
Spumellaria Ehrenberg 1875
No full textSpumellaria gen. et sp. indet. (Fig. 5L) FIGURED SPECIMEN. — ULVG-7341. MATERIAL. — Four specimens (recovered with the hydrogen peroxide method); two specimens (recovered with the acetic acid method). DESCRIPTION Test ellipsoidal, possibly composed of a spongy meshwork and without radial spines. Pores are of sub-circular outline and the skeleton surface is smooth. REMARKS The absence of diagnostic features does not enable a precise identification.Published as part of Kochhann, Karlos G. D., Baecker-Fauth, Simone & Fauth, Gerson, 2013, Late Maastrichtian Radiolaria from ODP Leg 165 - Site 999 B, Colombian Basin, pp. 5-20 in Geodiversitas 35 (1) on pages 16-17, DOI: 10.5252/g2013n1a1, http://zenodo.org/record/453801
Orbiculiforma Pessagno 1973
No full textOrbiculiforma sp. 1 (Fig. 5H) FIGURED SPECIMEN. — ULVG-7337. MATERIAL. — Two specimens (recovered with the hydrogen peroxide method). DESCRIPTION Test heart-shaped,with shallow central cavity.It presents a spongy meshwork,as well as, possible broken spines. REMARKS The outline of the specimens presents some similarities to Orbiculiforma persenex Pessagno, 1976, however, the poor preservation, as well as the presence of possible broken spines, does not enable a more precise taxonomic identification.Published as part of Kochhann, Karlos G. D., Baecker-Fauth, Simone & Fauth, Gerson, 2013, Late Maastrichtian Radiolaria from ODP Leg 165 - Site 999 B, Colombian Basin, pp. 5-20 in Geodiversitas 35 (1) on page 16, DOI: 10.5252/g2013n1a1, http://zenodo.org/record/453801
FIG. 3 in Late Maastrichtian Radiolaria from ODP Leg 165 - Site 999B, Colombian Basin
No full textFIG. 3. — Differential dissolution patterns for two specimens of Praeconocaryomma californiaensis Pessagno, 1976 soaked for 02:30 and 07:30 hours in a solution containing hydrochloric acid (HCl), at concentration of 10%. There is no evidence of the thin circular spines, characteristic of species, on the specimen exposed for more time to HCl.Published as part of Kochhann, Karlos G. D., Baecker-Fauth, Simone & Fauth, Gerson, 2013, Late Maastrichtian Radiolaria from ODP Leg 165 - Site 999B, Colombian Basin, pp. 5-20 in Geodiversitas 35 (1) on page 9, DOI: 10.5252/g2013n1a1, http://zenodo.org/record/453801
Theocapsomma Haeckel 1887
No full textTheocapsomma sp. (Fig. 5D) FIGURED SPECIMEN. — ULVG-7333. MATERIAL. — One specimen (recovered with the acetic acid method). DESCRIPTION Test of three segments. Cephalis completely encased in thorax, generating a dome shaped cephalo-thoracic portion, and bearing a small apical spine. Thorax hemispherical with subcircular pores enclosed in polygonal pore frames, with small nodes protruding from the corners. Lumbar stricture moderately defined externally. Thorax subcylindrical with subcircular pores longitudinally arranged. Distal margin probably ragged. REMARKS The absence of a vertical tube does not enable a direct comparison to Theocampe daseia Foreman, 1968 and T. bassilis Foreman, 1968.Published as part of Kochhann, Karlos G. D., Baecker-Fauth, Simone & Fauth, Gerson, 2013, Late Maastrichtian Radiolaria from ODP Leg 165 - Site 999 B, Colombian Basin, pp. 5-20 in Geodiversitas 35 (1) on page 14, DOI: 10.5252/g2013n1a1, http://zenodo.org/record/453801
Tholodiscus Petrushevskaya & Kozlova 1972
No full textTholodiscus sp. (Fig. 5K) FIGURED SPECIMEN. — ULVG-7340. MATERIAL. — Five specimens (recovered with the hydrogen peroxide method); four specimens (recovered with the acetic acid method). DESCRIPTION Discoidal test with rounded quadrangular outline and spongy meshwork. Four radial spines extend from the quadrant boundaries. Central area of each quadrant with secondary spines. REMARKS This species differs from the species assigned to the genus Orbiculiforma Pessagno, 1973 by the four radial spines at the quadrant boundaries.Published as part of Kochhann, Karlos G. D., Baecker-Fauth, Simone & Fauth, Gerson, 2013, Late Maastrichtian Radiolaria from ODP Leg 165 - Site 999 B, Colombian Basin, pp. 5-20 in Geodiversitas 35 (1) on page 16, DOI: 10.5252/g2013n1a1, http://zenodo.org/record/453801
Praeconocaryomma californiaensis Pessagno 1976
No full textPraeconocaryomma californiaensis Pessagno, 1976 (Fig. 5E) Praeconocaryomma californiaensis Pessagno, 1976: 41, pl. 7, figs 1-8; 1977: 942, pl. 3, figs 3-6. — Packer & Hart 2005: 144, fig. 7j, k. — Vishnevskaya & Alekseev 2008: 1368, fig. 2f. — Aumond et al. 2009: 201, fig. 3W. FIGURED SPECIMEN. — ULVG-7334. MATERIAL. — 18 specimens (recovered with the hydrogen peroxide method); five specimens (recovered with the acetic acid method). OCCURRENCE. — Coniacian of Great Valley Sequence, California (Pessagno 1976, 1977); Coniacian-Santonian of Bornholm, Denmark (Packer & Hart 2005); Santonian-Campanian of Kara Crater, Russia (Vishnevskaya & Alekseev 2008); Maastrichtian of Caribbean Sea (Aumond et al. 2009).Published as part of Kochhann, Karlos G. D., Baecker-Fauth, Simone & Fauth, Gerson, 2013, Late Maastrichtian Radiolaria from ODP Leg 165 - Site 999 B, Colombian Basin, pp. 5-20 in Geodiversitas 35 (1) on page 14, DOI: 10.5252/g2013n1a1, http://zenodo.org/record/453801
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