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 | |
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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Chondrichthyes | |
"Myliobatis cf. dixoni" = Aetomylaeus dixoni1
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Rhinoptera rasilis n. sp.1
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"Cestracion vincenti" = Heterodontus vincenti1
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Odontorhytis pappenheimi n. sp.1
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Oxypristis ferinus n. sp.1
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Alopecias smithwoodwardi n. sp.1, "Oxyrhina hastalis" = Carcharodon hastalis, Lamna vincenti1, Lamna barnitzkei n. sp.1, "Lamna (Odontaspis) cf. contortidens" = Lamna contortidens, "Oxyrhina desori" = Isurus oxyrinchus1
"Oxyrhina hastalis" = Carcharodon hastalis Agassiz 1838 white shark
"Lamna (Odontaspis) cf. contortidens" = Lamna contortidens Agassiz 1843 mackerel shark | |
"Lamna (Odontaspis) cf. elegans" = Striatolamia macrota
"Lamna (Odontaspis) cf. elegans" = Striatolamia macrota Agassiz 1838 goblin shark | |
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"Notidanus serratissimus" = Notorhynchus serratissimus1
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Rhaibodus rapax n. gen. n. sp.1
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Actinopteri | |
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Paranarrhichas damesi n. gen. n. sp.1
Paranarrhichas damesi n. gen. n. sp.1 Bohm 1926 | |
Sphyraenodus hastatus n. sp.1
Sphyraenodus hastatus n. sp.1 Bohm 1926 | |
"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 | |
Osteichthyes | |
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Thecostraca | |
Balanus sp. Da Costa 1778 barnacle | |
Gastropoda | |
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Turricula excelsa n. sp.1
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"Melongena cf. cornuta" = Galeodes cornutus1
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Ocinebra dietrichi n. sp.1
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Vexillum lindequisti n. sp.1
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Natica exilis n. sp.1
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Archimediella schetteri n. sp.1, Turritella sp.2, Turritella terebralis, Turritella merenskyi n. sp.1, Turritella (? Haustator) atlantica n. sp., Turritella (Haustator) vermicularis, "Tenagodes sp." = Tenagodus1
Turritella (? Haustator) atlantica n. sp. Böhm 1913 turret shell | |
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 | |
Ostrea gingensis, Crassostrea rutriformis n. sp.1, Crassostrea cymbaeformis n. sp.1, Crassostrea roncana1, "Ostrea digitalina" = Cubitostrea digitalina
"Ostrea digitalina" = Cubitostrea digitalina Eichwald 1830 oyster | |
Exogyra scheibei n. sp.1
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Pecten sp. Müller 1776 scallop | |
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Tellina luderitizi n. sp. tellin clam
Tellina (Peronaea) oppenheimi n. sp. Böhm 1913 tellin clam
Tellina cf. serrata Renier 1804 tellin clam | |
Mactra (Barymactra) denburgi n. sp. clam | |
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"Leda sp." = Nuculana
"Leda sp." = Nuculana Link 1807 pointed nut clam | |
Cephalopoda | |
Aturia lotzi n. sp.
Aturia lotzi n. sp. Böhm 1913 nautiloid | |
Gymnolaemata | |
Conopeum lamellosum1 Canu and Bassler 1920 | |
Schizoporella latisinuata1 Ulrich and Bassler 1904 | |
"Grammella crassimarginata" = Crassimarginatella1
"Grammella crassimarginata" = Crassimarginatella1 | |
Reticulofenestra | |
Reticulofenestra bisecta2 Roth 1970 | |
Coccolithophyceae | |
Chiasmolithus sp.2 Hay et al. 1966 | |
Braarudosphaera discula2, Braarudosphaera bigelowi2, Coccolithus eopelagicus2, Coccolithus formosus2, Zygrhablithus bijugatus2, Discoaster saipanensis2, Discoaster tani2
Coccolithus formosus2 Kamptner 1963
Zygrhablithus bijugatus2 Deflandre and Fert 1954 | |
Isthmolithus recurvus2 Deflandre 1954 | |
Foraminifera | |
"Lenticulina subalata" = Cristellaria subalata2
"Lenticulina subalata" = Cristellaria subalata2 Reuss 1854 | |
Globothalamea | |
Cibicides sp.2 Monfort 1808
Cibicides pseudoungerianus2 Cushman 1922 | |
Foraminifera | |
Textularia sp.2 Defrance 1824 | |
Glandulina sp.2 d'Orbigny 1826 | |
Nodosariata | |
Astacolus sp.2 de Montfort 1808 | |
Foraminifera | |
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