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Author
Helmut Keupp
3 articles by this author
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Research Article
Late Jurassic (Upper Kimmeridgian) Heterobranchia (Gastropoda) of the coral-facies of Saal near Kelheim and the viciniy of Nattheim (Germany)
Joachim Gründel
,
Helmut Keupp
,
Fritz Lang
,
Alexander Nützel
10.3897/zitteliana.96.e84187
12-12-2022
Unique: 1198 | Total: 2221
| Access Period:
Reprint: € 15,90
179-221
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Research Article
A possible terrestrial egg cluster in driftwood from the Lower Jurassic (Late Pliensbachian) of Buttenheim (Franconia, Germany)
Franz-Josef Scharfenberg
,
Helmut Keupp
,
Johann Schobert
10.3897/zitteliana.96.84493
27-06-2022
Unique: 839 | Total: 1982
| Access Period:
Reprint: € 6,30
135-143
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Research Article
Early teleost otolith morphogenesis observed in the Jurassic of Franconia, Bavaria, southern Germany
Werner Schwarzhans
,
Helmut Keupp
10.3897/zitteliana.96.81737
12-04-2022
Unique: 927 | Total: 2247
| Access Period:
Reprint: € 8,70
51-67
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