Where: Tunisia (36.8° N, 9.6° E: paleocoordinates 22.6° N, 14.3° E)
• coordinate estimated from map
When: Lyticoceras nodosoplicatum ammonoid zone, H2 Member (El Mergueb Formation), Early/Lower Hauterivian to Early/Lower Hauterivian (136.4 - 130.0 Ma)
• The section JBH-B starts after a lateral displacement of 10m to north–west from the top of section JBH-A. About 20m of limestone–marl alternations of the upper Valanginian are exposed at the base of the succession. The Hauterivian is represented by 783m of thickness, including a 65m gap of observation.
Environment/lithology: marine; lithified, calcareous limestone
Size class: macrofossils
Preservation: cast, mold/impression, original aragonite, original calcite
Primary reference: S. Melliti, S. Reboulet, N. Ben Haj Ali, M. S. Arfaoui, F. Zargouni and L. Memmi. 2019. Ammonoid and foraminiferal biostratigraphy from uppermost Valanginian to lowermost Barremian of the Jebel Boulahouajeb section (northern Tunisia). Journal of African Earth Sciences 151:438-460 [A. Kocsis/M. Gomez Correa]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 205693: authorized by Adam Kocsis, entered by Monica Alejandra Gomez Correa on 18.10.2019
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
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Phylloceratidae indet., "Phylloceras (Hypophylloceras) tethys" = Euphylloceras thetys, Phyllopachyceras infundibulum, Phyllopachyceras winkleri
"Phylloceras (Hypophylloceras) tethys" = Euphylloceras thetys d'Orbigny 1841 ammonite categories based on specimen counts
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