Where: Sperrgebiet, Namibia (27.4° S, 15.4° E: paleocoordinates 31.4° S, 8.6° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: NP 19-20 nannofossil zone, Langental Beds Formation, Priabonian (38.0 - 33.9 Ma)
• The marine beds are only about 4 m thick. The age can be narrowly defined by the range overlap of Discoaster saipanensis and Isthmolithus recurvus. The former ranges from the middle to upper Eocene and the latter from upper Eocene to lower Oligocene. They co-occur only in the NP 19 and NP 20 zones of Martini's (1971) biostratigraphic zonal scheme, and only in the I. recurvus subzone of Bukry's (1975) zonal scheme. Informally named "Langental Beds."
• group of beds-level stratigraphic resolution
Environment/lithology: shallow subtidal; poorly lithified, shelly/skeletal, green, yellow, calcareous siltstone and lithified, concretionary, shelly/skeletal, gray, green, yellow, calcareous sandstone
Size classes: macrofossils, mesofossils, microfossils
Primary reference: J. Böhm and W. Weisfermel. 1913. Über tertiäre Versteinerungen von den Bogenfelser Diamantfeldern. Beiträge zur Geologischen Erforschung der Deutschen Schutzgebiete 5:58-111 [M. Uhen/M. Uhen/M. Clapham]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 149316: authorized by Mark Uhen, entered by Mark Uhen on 01.08.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Chiasmolithus sp.2, Isthmolithus recurvus2, Heligomotoma clavaeforme n. sp.1, Calianassa erecta n. sp.1, Calianassa cf. fraasi1, Brachyuridarum sp.1, Diplochaetes longitubus n. gen. n. sp.
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Cristellaria | |
"Lenticulina subalata" = Cristellaria subalata2
"Lenticulina subalata" = Cristellaria subalata2 Reuss 1854 | |
Rotaliina | |
Cibicides sp.2 Monfort 1808
Cibicides pseudoungerianus2 Cushman 1922 | |
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Siphoglobulina | |
Textulariina | |
Textularia sp.2 Defrance 1824 | |
Lagenina | |
Astacolus sp.2 de Montfort 1808 | |
Glandulina sp.2 d'Orbigny 1826 | |
Maxillopoda | |
Balanus sp. Da Costa 1778 barnacle | |
Bivalvia | |
Arca koerti n. sp.
Arca koerti n. sp. Böhm 1913 ark | |
Arca (Noetia) reuningi n. sp.
Arca (Noetia) reuningi n. sp. Böhm 1913 clam | |
Pecten sp. Müller 1776 scallop | |
Exogyra scheibei n. sp.1
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"Ostrea digitalina" = Cubitostrea digitalina, Crassostrea rutriformis n. sp.1, Crassostrea cymbaeformis n. sp.1, Crassostrea roncana1, Ostrea gingensis
"Ostrea digitalina" = Cubitostrea digitalina Eichwald 1830 oyster | |
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Mactra (Barymactra) denburgi n. sp. clam | |
Tellina luderitizi n. sp. tellin clam
Tellina cf. serrata Renier 1804 tellin clam
Tellina (Peronaea) oppenheimi n. sp. Böhm 1913 tellin clam | |
"Leda sp." = Nuculana
"Leda sp." = Nuculana Link 1807 pointed nut clam | |
Gastropoda | |
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"Melongena cf. cornuta" = Galeodes cornutus1
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Vexillum lindequisti n. sp.1
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Ocinebra dietrichi n. sp.1
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Turricula excelsa n. sp.1
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Natica exilis n. sp.1
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"Tenagodes sp." = Tenagodus1
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Turritella sp.2, Turritella terebralis, Turritella merenskyi n. sp.1, Archimediella schetteri n. sp.1, Turritella (? Haustator) atlantica n. sp., Turritella (Haustator) vermicularis
Turritella (? Haustator) atlantica n. sp. Böhm 1913 turret shell | |
Cephalopoda | |
Aturia lotzi n. sp.
Aturia lotzi n. sp. Böhm 1913 nautiloid | |
Gymnolaemata | |
Schizoporella latisinuata1 Ulrich and Bassler 1904 | |
Conopeum lamellosum1 Canu and Bassler 1920 | |
Chondrichthyes | |
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"Oxyrhina hastalis" = Cosmopolitodus hastalis
"Oxyrhina hastalis" = Cosmopolitodus hastalis Agassiz 1843 elasmobranch | |
Rhaibodus rapax n. gen. n. sp.1
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Rhinoptera rasilis n. sp.1
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Oxypristis ferinus n. sp.1
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Carcharias (Physodon) quartus n. sp.1
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"Oxyrhina desori" = Isurus oxyrinchus1, Alopecias smithwoodwardi n. sp.1, Lamna barnitzkei n. sp.1, Lamna vincenti1
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"Lamna (Odontaspis) cf. contortidens" = Odontaspis contortidens, Odontaspis winkleri1, "Odontaspis macrota" = Odontaspis macrota1, "Lamna (Odontaspis) cf. elegans" = Odontaspis macrota
"Lamna (Odontaspis) cf. contortidens" = Odontaspis contortidens Agassiz 1843 sand tiger shark
"Lamna (Odontaspis) cf. elegans" = Odontaspis macrota Agassiz 1843 sand tiger shark | |
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Odontorhytis pappenheimi n. sp.1
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Actinopteri | |
Paranarrhichas damesi n. gen. n. sp.1
Paranarrhichas damesi n. gen. n. sp.1 Bohm 1926 | |
Sphyraenodus hastatus n. sp.1
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"Chrysophrys blankenhorni n. sp." = Otolithus (Chrysophris)1
"Chrysophrys blankenhorni n. sp." = Otolithus (Chrysophris)1 | |
Labrodon stromeri n. sp.1
Labrodon stromeri n. sp.1 Bohm 1926 | |
Cylindracanthus cf. rectus1 Agassiz 1843 | |
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Reticulofenestra | |
Prymnesiophyceae | |