Riegraf, Wolfgang (1978): Occurence of microfossils in Early Cretaceous sediments of DSDP Hole 25-249 (Tab. 1) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.669647, Supplement to: Riegraf, W (1978): Benthonische Schelf-Foraminiferen aus dem Valanginium-Hauterivium (Unterkreide) des Indischen Ozeans südwestlich Madagaskar (Deep Sea Drilling Project Leg 25, Site 249). Geologische Rundschau, 78(3), 1047-1061, https://doi.org/10.1007/BF01829334
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Abstract:
From 12 radiolarian-rich claystone samples of the DSDP-Leg 25, Site 249, situated in the western Indian Ocean southwest of Madagascar 4 species of agglutinated and 38 species of calcareous benthonic foraminifera are described, 13 of them in open nomenclature. As a lot of Valanginian species and Gavelinella barremiana occur in the foraminiferal faunas described here a Valanginian-Hauterivian age is assigned to them. These microfaunas investigated here yield some index species characteristic in the Lower Cretaceous deposits of Northern Germany and also from the near-by Madagascar. Nodosariids dominate in a striking way with 36 species, especially of Astacolus, Citharina, Lenticulina, Lingulina, Marginulinopsis, Nodosaria, Saracenaria, and Vaginulina. Important Neocomian species well-known from other DSDP sites, namely Praedorothia ouachensis (SIGAL) and planktonic foraminifers, are missing. The microfaunas of Site 249 have to be derived from shelf areas.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Latitude: -29.949800 * Longitude: 36.077000
Date/Time Start: 1972-08-18T00:00:00 * Date/Time End: 1972-08-18T00:00:00
Minimum DEPTH, sediment/rock: 314.96 m * Maximum DEPTH, sediment/rock: 397.44 m
Event(s):
25-249 * Latitude: -29.949800 * Longitude: 36.077000 * Date/Time: 1972-08-18T00:00:00 * Elevation: -2098.0 m * Penetration: 412 m * Recovery: 221.4 m * Location: Indian Ocean//RIDGE * Campaign: Leg25 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 33 cores; 285 m cored; 0 m drilled; 77.7 % recovery
Comment:
R = rare (1-5 specimens), C = common (6-20 specimens), A = abundante (>29 specimens, or dominant occurence with more than 30 %), - = absent. Parameter comments give the global occurence of benthic foraminifera
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 2 | Sample code/label | Sample label | Berger, Glenn W | DSDP/ODP/IODP sample designation | ||
| 3 | Lithologic unit/sequence | Unit | Berger, Glenn W | |||
| 4 | Astacolus cephalotes | A. cephalotes | Berger, Glenn W | Valanginian-Albian | ||
| 5 | Marginulinopsis matutina | M. matutina | Berger, Glenn W | Hettangian-Barremian | ||
| 6 | Globulina bucculenta | G. bucculenta | Berger, Glenn W | Valanginian-Albian | ||
| 7 | Glomospirella gaultina | G. gaultina | Berger, Glenn W | Callovian-Maastrichtian | ||
| 8 | Nodosaria sp. | Nodosaria sp. | Berger, Glenn W | var. C, endemic | ||
| 9 | Nodosaria sp. | Nodosaria sp. | Berger, Glenn W | var. D, endemic | ||
| 10 | Nodosaria sp. | Nodosaria sp. | Berger, Glenn W | var. A, Upper Tithonian-Hauterivian | ||
| 11 | Nodosaria sp. | Nodosaria sp. | Berger, Glenn W | var. B, endemic | ||
| 12 | Nodosaria sp. | Nodosaria sp. | Berger, Glenn W | unsculptured, endemic | ||
| 13 | Dentalina sp. | Dentalina sp. | Berger, Glenn W | even | ||
| 14 | Lenticulina nodosa | L. nodosa | Berger, Glenn W | Berriasian-Aptian | ||
| 15 | Lenticulina saxonica | L. saxonica | Berger, Glenn W | Valanginian-Albian | ||
| 16 | Palmula crepidularis | P. crepidularis | Berger, Glenn W | Oxfordian-Aptian | ||
| 17 | Marginulinopsis bettenstaedti | M. bettenstaedti | Berger, Glenn W | Kimmeridgian-Albian | ||
| 18 | Marginulina inaequalis | M. inaequalis | Berger, Glenn W | Oxfordian-Aptian | ||
| 19 | Marginulina caelata | M. caelata | Berger, Glenn W | Valanginian | ||
| 20 | Citharina harpa | C. harpa | Berger, Glenn W | Valanginian-Barremian | ||
| 21 | Reophax sp. | Reophax sp. | Berger, Glenn W | questionable, Upper Tithonian-Valanginian | ||
| 22 | Pseudonodosaria humilis | P. humilis | Berger, Glenn W | Valanginian-Albian | ||
| 23 | Lingulina lamellata | L. lamellata | Berger, Glenn W | Valanginian-Albian | ||
| 24 | Lingulina sp. | Lingulina sp. | Berger, Glenn W | var. B, endemic | ||
| 25 | Lingulina sp. | Lingulina sp. | Berger, Glenn W | endemic | ||
| 26 | Lingulina biformis | L. biformis | Berger, Glenn W | Valanginian-Albian | ||
| 27 | Saracenaria lutanata | S. lutanata | Berger, Glenn W | Valanginian-Albian | ||
| 28 | Saracenaria crassicosta | S. crassicosta | Berger, Glenn W | Valanginian-Albian | ||
| 29 | Palmula malakialinensis | P. malakialinensis | Berger, Glenn W | Kimmeridgian-Barremian | ||
| 30 | Eoguttulina bilocularis | E. bilocularis | Berger, Glenn W | Hettangian-Albian | ||
| 31 | Ramulina tappanae | R. tappanae | Berger, Glenn W | Valanginian-Albian | ||
| 32 | Lenticulina roemeri | L. roemeri | Berger, Glenn W | Valanginian-Barremian | ||
| 33 | Vaginulina recta | V. recta | Berger, Glenn W | Aptian-Albian | ||
| 34 | Citharina truncata | C. truncata | Berger, Glenn W | Hauterivian-Albian | ||
| 35 | Reophax aff. eckernex | R. aff. eckernex | Berger, Glenn W | Valanginian-Hauterivian | ||
| 36 | Ammobaculites sp. | Ammobaculites sp. | Berger, Glenn W | questionable, endemic | ||
| 37 | Nodosaria obscura | N. obscura | Berger, Glenn W | Valanginian-Santonium | ||
| 38 | Dentalina debilis | D. debilis | Berger, Glenn W | Oxfordian-Aptian | ||
| 39 | Palmula sp. | Palmula sp. | Berger, Glenn W | endemic | ||
| 40 | Citharina sp. | Citharina sp. | Berger, Glenn W | endemic | ||
| 41 | Tristix acutangulus | T. acutangulus | Berger, Glenn W | Valanginian-Albian | ||
| 42 | Astacolus microdictyotus | A. microdictyotus | Berger, Glenn W | Upper Tithonian-Valanginian | ||
| 43 | Paalzowella feifeli | P. feifeli | Berger, Glenn W | Bathonian-Valanginian (Hauterivian?) | ||
| 44 | Lingulina semiornata | L. semiornata | Berger, Glenn W | Valanginian-Albian | ||
| 45 | Gavelinella barremiana | G. barremiana | Berger, Glenn W | Upper Hauterivian-Lower Cenomanian | ||
| 46 | Foraminifera, benthic | Foram benth | # | Berger, Glenn W | ||
| 47 | Radiolarians abundance | Rad abund | Berger, Glenn W | |||
| 48 | Porifera spiculae | Porifera spiculae | Berger, Glenn W | |||
| 49 | Ophiuroidea remains | Ophiuroidea rem | Berger, Glenn W | |||
| 50 | Ostracoda | Ostrac | Berger, Glenn W | |||
| 51 | Fish remains | Fish rem | Berger, Glenn W | including fish teeth |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
600 data points