Journal
GEOLOGICA BELGICA
Volume 26, Issue 1-2, Pages 101-113Publisher
Geologica Belgica Luxemburga Scientia & Professionis
DOI: 10.20341/gb.2023.007
Keywords
Cephalopoda; Nautilida; Cretaceous; Asdonk Member; Sonnisheide Member; Vaals Formation; micro-CT; Zolderand Houthalen collieries
Categories
Ask authors/readers for more resources
Newly recognized material of the Late Cretaceous nautilid Angulithes westphalicus was described from the subsurface of northeastern Belgium. This study provides the first formal documentation of this genus and species in Belgium and confirms its close evolutionary relationship with Angulithes galea found in central Europe during the Turonian to Coniacian stages.
Newly recognised material of the Late Cretaceous nautilid Angulithes westphalicus is described from the subsurface of the eastern part of the Campine in north-east Belgium. This constitutes the first formal documentation of this genus and species from the Cretaceous of Belgium, having been identified amongst a large suite of fossils collected from the Voort Shafts I & II of the Zolder colliery during the first half of the twentieth century. The specimens originate from an interval of marine calcareous sand with a marly glauconiferous base, dated as late middle Santonian (Gonioteuthis westfalicagranulata belemnite Zone) and for which a deepening of the depositional environment is documented. Lithostratigraphically, the specimens occur within the Vaals Formation, within the upper part of the Asdonk Member or alternatively within the lower part of the Sonnisheide Member. The early Campanian age of the Asdonk Member suggested previously is refuted, the age of the Sonnisheide Member needs further study. The position of the siphuncle in A. westphalicus is illustrated for the first time; it is positioned closer to the venter than the dorsum, which confirms the close evolutionary relationship with Angulithes galea, which ranges from the upper Turonian to middle Coniacian in central Europe.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available