Marine vertebrates from the Santonian coastal carbonates ofnorthwestern Germany – a tool for the reconstruction of a Proto-North Sea Basin intertidal dinosaur-exchange bridge

Diedrich, Cajus G.; Scheer, Udo

doi:10.1515/geo-2015-0020

Cited by 4 publications

(6 citation statements)

References 27 publications

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“…Those series are dated by the inoceramids Sphenoceramus patootensis and the belemnites Gonioteuthis granulata and Actinocamax verus [26].…”

Section: Materials and Methods And Their Biostratigraphymentioning

confidence: 99%

“…From the lower Coniacian to the upper Santonian, the lateral cusps, completely reduced, are only rudimentary rarely present, a character considered as plesiomorphic [10]. New teeth from the Late Santonian of the Weiner Esch near Ochtrup (northwest Germany) show also no lateral cusps at all anterior to posterior teeth ( [26], Figure 7(a)). …”

Section: Stratophenetic and Evolutionary Trend Within The Isurusmentioning

confidence: 99%

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Skeleton of the Fossil SharkIsurus denticulatusfrom the Turonian (Late Cretaceous) of Germany—Ecological Coevolution with Prey of Mackerel Sharks

Diedrich¹

2014

Paleontology Journal

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AnIsurus denticulatus(Glickman, 1957) shark skeleton from the late Turonian (Late Cretaceous) of Germany is described within a diverse upwelling influenced fish fauna of northern Germany, Europe. It was found in the turbiditic marly limestones at the submarine Northwestphalian Lippe Swell in the southern Proto-North Sea Basin. Compared to modern mackerel sharkIsurus oxyrinchusRafinesque, 1809, including cranial denticles, this allows a revision of the younger synonym “CretoxyrhinaGlickman, 1964”. Within the CretaceousIsurus, a loss of the lateral tooth cusps and nutritive clefts of the roots (considered as plesiomorphic character of the Lamnidae) took place from the Albian (Early Cretaceous) to the Campanian (Late Cretaceous). The tooth morphology changed during the Albian-Turonian from a tearing (I. denticulatus) to a cutting (I. mantelli) type (Coniacian-Campanian). The complete lateral cusplet and symphyseal teeth reduction inIsurusat the end of the Cretaceous seem to be a result of the coevolutionary changing feeding habits of a worldwide expanding shark. In a second evolutionary adaptation, parallel to the new radiation of marine mammals (Paleocene/early Eocene), fromIsurus, the white shark ancestors (Carcharodon) seem to originate. In another radiation fromIsurus, coevolving with appearance of dolphins and further marine mammal evolution within the Middle Miocene, a second timeIsurusdeveloped serrated teeth (I. escheri).

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“…Those series are dated by the inoceramids Sphenoceramus patootensis and the belemnites Gonioteuthis granulata and Actinocamax verus [26].…”

Section: Materials and Methods And Their Biostratigraphymentioning

confidence: 99%

Section: Stratophenetic and Evolutionary Trend Within The Isurusmentioning

confidence: 99%

Skeleton of the Fossil SharkIsurus denticulatusfrom the Turonian (Late Cretaceous) of Germany—Ecological Coevolution with Prey of Mackerel Sharks

Diedrich¹

2014

Paleontology Journal

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“…High-resolution sampling of elasmobranch remains across the geological section at Waidach produced one of the few records of faunal changes among elasmobranch communities around the K-Pg event. So far, only the sections in Morocco (Noubhani & Cappetta 1997; Noubhani 2010) and Denmark (Adolfssen & Ward 2014, 2015 provided data on the composition of elasmobranch assemblages before and after the K-Pg boundary. However, the composition of elasmobranch assemblages is strongly controlled by palaeoenvironmental settings (Underwood 2004), and the sections in Denmark and Morocco represent two different environmental and palaeogeographical settings.…”

Section: Comparisons With the Moroccan And Danish Sectionsmentioning

confidence: 99%

“…9A–P.2015 ‘ Scyliorhinus ’ elongatus (Davis); Adolfssen & Ward, p. 331, fig. 8A–F.2015 Scyliorhinus elongatus (Davis); Diedrich & Scheer, p. 347, figs 3, 10a.…”

Section: Systematic Palaeontologymentioning

confidence: 99%

“…However, such fine-scale regional analyses of the composition of elasmobranch faunas across the K-Pg boundary are rare. To date, only the geological sections of Morocco and Denmark have been extensively sampled in order to provide data on the composition of the elasmobranch assemblages before and after the K-Pg boundary (Noubhani & Cappetta 1997;Noubhani 2010;Adolfssen & Ward 2014, 2015. However, the Moroccan sections contain an incomplete or as yet uncharacterized sedimentary record around the K-Pg boundary and lack an accurate fine-scale stratigraphic scheme.…”

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Earliest Danian outer neritic elasmobranch assemblages reveal an environmentally controlled faunal turnover at the Cretaceous–Palaeogene boundary in the northern Tethyan Realm (Austria)

Feichtinger,

Pollerspöck,

Harzhauser

et al. 2024

Papers in Palaeontology

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This study reports elasmobranch remains from two fossil‐rich horizons in the earliest Danian Olching Formation at Waidach, Austria. These outer neritic assemblages complement previous fine‐scale bulk‐sampling of latest Maastrichtian horizons at Waidach and document a regional elasmobranch faunal turnover across the Cretaceous–Palaeogene (K–Pg) boundary. The Danian assemblages show homogeneity in species richness and are dominated by squaliforms. The fauna comprises 16 species belonging to 12 genera including several new taxa (Centrodeania rugosa gen. et sp. nov., Centrodeania annae gen. et sp. nov., Incognitorapax fernsebneri gen. et sp. nov., Scyliorhinus alaformis sp. nov.). Comparison with latest Maastrichtian assemblages from Waidach revealed a marked faunal turnover across the K–Pg boundary associated with an increase in species richness and shift in abundance from Squaliformes to Carcharhiniformes. This is associated with marked environmental changes from a deep marine, dysoxic setting in the Maastrichtian to a more oxygenated, shallower environment in the earliest Danian. The turnover was driven by environmentally induced regional changes in species geographic ranges. High diversity in the Danian fauna suggests that the habitability of the corresponding palaeoenvironment was preserved or recovered immediately after the K–Pg event. Comparison with other elasmobranch assemblages across the K–Pg boundary highlights a strong control of local palaeoenvironmental settings over the timing and magnitude of the turnover. Our study emphasizes the importance of successive sampling to disentangle local from general patterns of faunal turnover during the K–Pg event and to better assess the consequences of this extinction event over elasmobranch diversity.

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Late late Albian (Early Cretaceous) shark teeth from Annopol, Poland

Siversson¹,

Machalski²

2017

Alcheringa: An Australasian Journal of Palaeontology

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Marine vertebrates from the Santonian coastal carbonates ofnorthwestern Germany – a tool for the reconstruction of a Proto-North Sea Basin intertidal dinosaur-exchange bridge

Abstract: A diverse vertebrate fauna, dominated by shark teeth, is recorded from conglomerates within the lime-

Cited by 4 publications

References 27 publications

Skeleton of the Fossil SharkIsurus denticulatusfrom the Turonian (Late Cretaceous) of Germany—Ecological Coevolution with Prey of Mackerel Sharks

Skeleton of the Fossil SharkIsurus denticulatusfrom the Turonian (Late Cretaceous) of Germany—Ecological Coevolution with Prey of Mackerel Sharks

Earliest Danian outer neritic elasmobranch assemblages reveal an environmentally controlled faunal turnover at the Cretaceous–Palaeogene boundary in the northern Tethyan Realm (Austria)

Late late Albian (Early Cretaceous) shark teeth from Annopol, Poland

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