A discussion about Valanginian Neocomitinae from Central Poland, their ontogeny and possible origin

Ploch, Izabela

doi:10.1016/j.cretres.2017.10.030

Cited by 2 publications

(3 citation statements)

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“…The exposed clay profile at Wąwał measured 12 m in thickness, with the lowermost 3 meters available to study only in the 1960s. Estimates of thickness of the clay succession at Wąwał based on outcrop and shallow drill core data indicate that it reaches up to 23 m (Kujau et al, 2013; Morales et al, 2015; Ploch, 2018).…”

Section: Geological Settingmentioning

confidence: 99%

“…The studied Valanginian section at Wąwał starts with conglomerates composed of calcareous pebbles resting disconformably on Upper Jurassic limestones (Kutek & Marcinowski, 1996). Above, the section consists of clayey sand, and subsequent siltstones and claystones, higher up replaced by sandy siltstones with limestone concretions (Kaim, 2001; Ploch, 2018) and topped by glauconitic siltstones of possible early Hauterivian age (Fig. 2).…”

Section: Geological Settingmentioning

confidence: 99%

“…Seawater paleotemperature estimates indicate 13.5–16.5°C (Kaim, 2001; Rees, 2005). The Valanginian part of the section yielded well-preserved marine invertebrate fossils including ammonites (Dzik, 1990; Lewiński, 1932; Kokoszyńska, 1956; Ploch, 2007, 2018), gastropods (Kaim, 2001, 2002, 2004; Schröder, 1995), oysters (Pugaczewska, 1975), ostracods (Sztejn, 1957), decapod crustaceans (Collins, 1969), bryozoans (Dzik, 1975), holothurian sclerites (Kubiatowicz & Matyja, 1977), and nannofossils (Mutterlose, 1993). The sole cephalopod statolith has been described recently by Pindakiewicz et al (2022).…”

Section: Geological Settingmentioning

confidence: 99%

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Early Cretaceous radiation of teleosts recorded by the otolith-based ichthyofauna from the Valanginian of Wąwał, central Poland

Pindakiewicz

Hryniewicz

Kaim

2022

Journal of Vertebrate Paleontology

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We report a Valanginian (Early Cretaceous) otolith-based ichthyofauna from a section at Wawał in central Poland. We describe one new genus (Palaeoargentina gen. nov.), six new otolith-based species (Pteralbula polonica sp. nov., Protalbula pentangularis sp. nov., Kokenichthys kuteki sp. nov., Protoelops gracilis sp. nov., Palaeoargentina plicata sp. nov., Archaeotolithus aptychoides sp. nov.) from Wawał and compare them to species known from similar assemblages elsewhere. The comparison of teleost diversity shows similarity to the Aptian (late Early Cretaceous) and less distinctly to the Maastrichtian (latest Cretaceous) assemblages, rather than to its coeval equivalents from Germany and southern England, and indicates that a considerable teleost diversity already existed before the mid-Cretaceous. The vertical succession of otolith taxa in the Wawał section is in concordance to the pattern already revealed from the succession of bivalves and other benthic invertebrates and it is attributed to sea level and temperature variations. Previously identified causes of benthic invertebrate succession in the Wawał section are used to infer paleoenvironmental factors governing fish distribution in the Valanginian marine environment recorded at this site. The new findings suggest that the radiation of teleosts started before the Valanginian, and it was a relatively long and apparently gradual process. This fossil association also reveals a significant shift in the abundance ratio of fish otoliths vs. cephalopod statoliths in fully marine deposits, with otoliths much more abundant than the statoliths in Valanginian and younger sediments while it is otherwise in the Jurassic deposits.http://zoobank.org/urn:lsid:zoobank.org:pub:19BCD353-1CCF-4134-80D5-EDEEABA8610B

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Section: Geological Settingmentioning

confidence: 99%

Section: Geological Settingmentioning

confidence: 99%