Langental, NE of Bogenfels: Priabonian, Namibia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Chiasmolithus sp.
Siesser and Salmon 1979
Isthmolithus recurvus
Siesser and Salmon 1979
Heligomotoma clavaeforme n. sp.
Bohm 1926
Calianassa erecta n. sp.
Bohm 1926
Calianassa cf. fraasi
Bohm 1926
Brachyuridarum sp.
Bohm 1926
Diplochaetes longitubus n. gen., n. sp.
Lenticulina subalata (Reuss 1854)
Siesser and Salmon 1979
original and current combination Cristellaria subalata
Cibicididae
Cibicides sp. Monfort 1808
Siesser and Salmon 1979
Cibicides pseudoungerianus (Cushman 1922)
Siesser and Salmon 1979
Bagginidae
Valvulineria aegyptina
Siesser and Salmon 1979
Rotaliidae
Pararotalia inermis
Siesser and Salmon 1979
Ammonia cf. beccarii
Siesser and Salmon 1979
Ammonia sp. Bruennich 1772
Siesser and Salmon 1979
Elphidiidae
Elphidium cf. crispum
Siesser and Salmon 1979
Elphidium sp. Monfort 1808
Siesser and Salmon 1979
sp. A, sp. B
Nonionidae
Nonion costiferum
Siesser and Salmon 1979
Nonion sloanii
Siesser and Salmon 1979
unclassified
? Siphoglobulina sp.
Siesser and Salmon 1979
Textulariidae
Textularia sp. Defrance 1824
Siesser and Salmon 1979
Nodosariidae
Lenticulina simplex
Siesser and Salmon 1979
Lenticulina cf. pseudomamilligerus
Siesser and Salmon 1979
Lenticulina cf. oblonga
Siesser and Salmon 1979
Lenticulina sp. Lamarck 1804
Siesser and Salmon 1979
Vaginulinidae
Astacolus sp. de Montfort 1808
Siesser and Salmon 1979
Glandulinidae
Glandulina sp. d'Orbigny 1826
Siesser and Salmon 1979
Maxillopoda - Sessilia - Balanidae
Balanus sp. Da Costa 1778
Bivalvia - Arcida - Arcidae
Arca koerti n. sp. Böhm 1913
Bivalvia - Arcida - Noetiidae
Arca (Noetia) reuningi n. sp. Böhm 1913
Bivalvia - Pectinida - Pectinidae
Pecten sp. Müller 1776
Bivalvia - Ostreida - Gryphaeidae
Exogyra scheibei n. sp. Bohm 1926
Bohm 1926
Bivalvia - Ostreida - Ostreidae
Ostrea digitalina (Eichwald 1830)
recombined as Cubitostrea digitalina
Crassostrea rutriformis n. sp.
Bohm 1926
Crassostrea cymbaeformis n. sp.
Bohm 1926
Crassostrea roncana
Bohm 1926
n. forma tenuis
Ostrea gingensis (Schlotheim 1813)
var. africana
Bivalvia - Mytilida - Mytilidae
Lithodomus beetzi n. sp. Bohm 1926
Bohm 1926
Perna sp. Retzius 1788
Bohm 1926
Bivalvia - Pholadida - Myidae
Mya schweinfurthi (Mayer-Eymar 1887)
Bohm 1926
Bivalvia - Cardiida - Gastrochaenidae
Rocellaria clausa n. sp. Bohm 1926
Bohm 1926
Rocellaria sacculus n. sp. Bohm 1926
Bohm 1926
Bivalvia - Cardiida - Mactridae
Mactra (Barymactra) denburgi n. sp.
Mactra tumida n. sp. Bohm 1926
Bohm 1926
Bivalvia - Cardiida - Tellinidae
Tellina luderitizi n. sp.
Tellina cf. serrata Renier 1804
Tellina (Peronaea) oppenheimi n. sp. Böhm 1913
Bivalvia - Protobranchia - Nuculanidae
Leda sp. (Schumacher 1817)
synonym of Nuculana
Gastropoda - Cephalaspidea - Bullidae
Bullinella aff. convoluta Brocchi 1800
Bohm 1926
Gastropoda - Neogastropoda - Buccinidae
Pseudoliva leutweini n. sp. Bohm 1926
Bohm 1926
Pseudoliva thielei n. sp. Bohm 1926
Bohm 1926
Gastropoda - Neogastropoda - Melongenidae
Melongena cf. cornuta (Agassiz 1843)
Bohm 1926
recombined as Galeodes cornutus
var. patuloidea
Gastropoda - Neogastropoda - Volutidae
Voluta sp. Linnaeaus 1758
Bohm 1926
Gastropoda - Neogastropoda - Turbinellidae
Streptosiphon lotzi n. sp. Bohm 1926
Bohm 1926
Streptosiphon klinghardti n. sp. Bohm 1926
Bohm 1926
Streptosiphon piriformis n. sp. Bohm 1926
Bohm 1926
Gastropoda - Neogastropoda - Costellariidae
Vexillum lindequisti n. sp. Bohm 1926
Bohm 1926
Gastropoda - Neogastropoda - Muricidae
Ocinebra dietrichi n. sp. Bohm 1926
Bohm 1926
Gastropoda - Neogastropoda - Turridae
Turricula excelsa n. sp. Bohm 1926
Bohm 1926
Gastropoda - Naticidae
Natica exilis n. sp. Bohm 1926
Bohm 1926
Gastropoda - Cassidae
Sconsia sp. Gray 1847
Bohm 1926
Gastropoda - Sorbeoconcha - Siliquariidae
Tenagodes sp. (Fisher 1885)
Bohm 1926
original and current combination Tenagodus
Gastropoda - Sorbeoconcha - Turritellidae
Turritella sp. Lamarck 1799
Siesser and Salmon 1979
Turritella terebralis Lamarck 1799
var. sulcata, var. applanata
Turritella merenskyi n. sp. Bohm 1926
Bohm 1926
Archimediella schetteri n. sp.
Bohm 1926
Turritella (? Haustator) atlantica n. sp. Böhm 1913
Turritella (Haustator) vermicularis (Brocchi 1814)
var. nov. bijugata
Cephalopoda - Nautilida - Aturiidae
Aturia lotzi n. sp. Böhm 1913
(2 measurements)
Gymnolaemata - Cheilostomata - Schizoporellidae
Schizoporella latisinuata Ulrich and Bassler 1904
Bohm 1926
Gymnolaemata - Cheilostomata - Electridae
Conopeum lamellosum Canu and Bassler 1920
Bohm 1926
Gymnolaemata - Cheilostomata - Membraniporidae
Grammella crassimarginata
Bohm 1926
Chondrichthyes - Squatiniformes - Squatinidae
Squatina prima (Winkler 1874)
Bohm 1926
Chondrichthyes - Odontaspidida - Isuridae
Oxyrhina sp. Agassiz 1843
Bohm 1926
Chondrichthyes - Odontaspidida - Carcharodontidae
Oxyrhina hastalis Agassiz 1843
recombined as Cosmopolitodus hastalis
Chondrichthyes - Plagiostomi - Carcharidae
Rhaibodus rapax n. gen., n. sp. Bohm 1926
Bohm 1926
Chondrichthyes - Myliobatiformes - Rhinopteridae
Rhinoptera rasilis n. sp. Bohm 1926
Bohm 1926
Chondrichthyes - Myliobatiformes - Myliobatidae
Myliobatis cf. dixoni Agassiz 1843
Bohm 1926
Chondrichthyes - Pristiformes - Pristidae
Oxypristis ferinus n. sp. Bohm 1926
Bohm 1926
Chondrichthyes - Lamniformes - Carchariidae
Carcharias (Physodon) quartus n. sp. Bohm 1926
Bohm 1926
Chondrichthyes - Lamniformes - Lamnidae
Oxyrhina desori (Agassiz 1843)
Bohm 1926
synonym of Isurus oxyrinchus
var praecurso
Alopecias smithwoodwardi n. sp. Bohm 1926
Bohm 1926
Lamna barnitzkei n. sp. Bohm 1926
Bohm 1926
Lamna vincenti (Winkler 1878)
Bohm 1926
Chondrichthyes - Lamniformes - Odontaspididae
Lamna (Odontaspis) cf. contortidens Agassiz 1843
recombined as Odontaspis contortidens
Odontaspis winkleri Leriche 1905
Bohm 1926
Odontaspis macrota (Agassiz 1843)
Bohm 1926
Lamna (Odontaspis) cf. elegans Agassiz 1843
synonym of Odontaspis macrota
Chondrichthyes - Carchariniformes - Carcharhinidae
Carcharias (Aprionodon) frequens Dames 1883
Bohm 1926
Galeocerdo sp. Müller and Henle 1837
Bohm 1926
Galeocerdo latidens Agassiz 1843
Bohm 1926
Chondrichthyes - Carchariniformes - Scyliorhinidae
Galeus sp. Schaeffer 1760
Bohm 1926
Galeus porrectus n. sp. Bohm 1926
Bohm 1926
Galeus robustus n. sp. Bohm 1926
Bohm 1926
Chondrichthyes - Heterodontiformes - Heterodontidae
Cestracion vincenti Leriche 1905
Bohm 1926
Chondrichthyes
Odontorhytis pappenheimi n. sp. Bohm 1926
Bohm 1926
Chondrichthyes - Squalomorphii - Hexanchidae
Notidanus serratissimus Agassiz 1843
Bohm 1926
Actinopteri - Blenniiformes - Blenniidae
Paranarrhichas damesi n. gen., n. sp. Bohm 1926
Bohm 1926
Actinopteri - Perciformes
Sphyraenodus hastatus n. sp. Bohm 1926
Bohm 1926
Actinopteri - Spariformes - Sparidae
Chrysophrys blankenhorni n. sp.
Bohm 1926
corrected as Otolithus (Chrysophris)
Actinopteri - Labriformes - Labridae
Labrodon stromeri n. sp. Bohm 1926
Bohm 1926
Actinopteri - Alepisauriformes - Dercetidae
Cylindracanthus cf. rectus (Agassiz 1843)
Bohm 1926
Actinopteri - Siluriformes - Siluridae
Pimelodus cf. gaudryi Leriche 1901
Bohm 1926
unclassified
Reticulofenestra bisecta
Siesser and Salmon 1979
Reticulofenestra coenura
Siesser and Salmon 1979
Reticulofenestra umbilica
Siesser and Salmon 1979
Prymnesiophyceae
Coccolithus eopelagicus
Siesser and Salmon 1979
Coccolithus formosus
Siesser and Salmon 1979
Zygrhablithus bijugatus
Siesser and Salmon 1979
Discoaster saipanensis
Siesser and Salmon 1979
Discoaster tani
Siesser and Salmon 1979
Prymnesiophyceae - Braarudosphaeraceae
Braarudosphaera bigelowi
Siesser and Salmon 1979
Braarudosphaera discula
Siesser and Salmon 1979
see common names

Geography
Country:Namibia State/province:Sperrgebiet
Coordinates: 27.4° South, 15.4° East (view map)
Paleocoordinates:31.4° South, 8.6° East
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Paleogene Epoch:Eocene
Stage:Priabonian 10 m.y. bin:Cenozoic 3
Key time interval:Priabonian Nannofossil zone: NP 19-20
Age range of interval:38.00000 - 33.90000 m.y. ago
Stratigraphy
Formation:Langental Beds
Stratigraphic resolution:group of beds
Stratigraphy comments: 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."
Lithology and environment
Primary lithology:shelly/skeletal,green,yellow poorly lithified calcareous siltstone
Secondary lithology:concretionary,shelly/skeletal,gray,green,yellow lithified calcareous sandstone
Includes fossils?Y
Includes fossils?Y
Lithology description: Concretionary calcareous sandstones and marly sandstones and siltstone. At least one layer of light-brown ferruginous calcirudite occurs near the bottom of the section. This layer contains pebbles, but is predominantly composed of neomorphosed mollusc fragments set in micrite and microspar. The marly sand- and siltstones are mostly pale greenish yellow, poorly consolidated, and calcareous. The calcareous concretionary layers are greyish yellow to pale greenish yellow and are moderately well indurated.
Environment:shallow subtidal indet.
Geology comments: Members of the nannofossil genus Braorudosphaera are virtually absent in open-ocean deposits, and are thus strong indicators of nearshore environments; Zygrhablithus bijugatus is also most common in nearshore waters. The benthic foraminifera also suggest a normal marine, shallow-water environment.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils,microfossils
Collection methods and comments
Collection excludes:all macrofossils
Reason for describing collection:general faunal/floral analysis
Metadata
Database number:149316
Authorizer:M. Uhen Enterer:M. Uhen
Modifier:M. Clapham Research group:marine invertebrate,vertebrate
Created:2013-08-01 02:32:09 Last modified:2019-08-18 14:26:20
Access level:the public Released:2013-08-01 02:32:09
Creative Commons license:CC BY
Reference information

Primary reference:

47897. 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]

Secondary references:

47889 J. Bohm. 1926. Über Tertiäre versteinerungen von den Bogenfelser diamantfeldern. Beiträge zur geologischen Erforschung der deutschen Schutzgebiete 2:55-87 [M. Uhen/M. Uhen/P. Wagner]
47778 W. G. Siesser and D. Salmon. 1979. Eocene marine sediments in the Sperrgebiet, South West Africa. Annals of the South African Museum 79(2):9-34 [M. Uhen/M. Uhen]