Where: Poland (50.9° N, 21.8° E: paleocoordinates 40.5° N, 20.6° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Late/Upper Albian (105.3 - 99.6 Ma)

• Theoretically, the shark tooth collection obtained by screen washing at Kopiec could have originated from the whole sampled interval, which embraces the upper part of unit 2 and the whole unit 3 (see above). However, practically no vertebrate material has been observed during the present project in sands or weakly phosphatized sandstone nodules situated below the top of unit 2 (there is, however, a single pliosaur vertebral centrum preserved in one such nodule in an old collection, reported by Bardet et al. 2016). In contrast, the interval spanning the top of unit 2 (layer of well-lithified sandy phosphatic nodules and clasts) to the top of unit 3 contains abundant vertebrate fossils and constitutes the most fossiliferous part of the Annopol succession. All shark material collected is assumed to have originated from this interval. In view of the ranges of ammonites present in this interval, the biostratigraphic dating of the shark material is between the middle Albian Hoplites dentatus Zone to the upper upper Albian Mortoniceras perinflatum Zone. Ammonites in unit 3, mainly preserved as attachment scars on oyster shells, are mid-'Vraconnian' (late late Albian) forms typical of the Mortoniceras rostratum Zone or, more probably, the Mortoniceras perinflatum Zone. There is a hiatus on top of unit 3, embracing the Praeschloenbachia briacensis Zone, which spans the Albian‒Cenomanian boundary. The concretionary aggregates near the top of unit 3 comprise up to three generations of phosphatic clasts, testifying to a multiphase origin and reworking of the phosphate material.

• bed-level stratigraphic resolution

Environment/lithology: marine; poorly lithified, glauconitic, nodular, phosphatic sandstone

Size class: macrofossils

Collected in 2012-2015

Collection methods: bulk, sieve

• Repository: Institute of Paleobiology, Polish Academy of Sciences, Warsaw (ZPAL)

Primary reference: M. Siversson and M. Machalski. 2017. Late late Albian (Early Cretaceous) shark teeth from Annopol, Poland. Alcheringa 41:433-463 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 213375: authorized by Matthew Clapham, entered by Matthew Clapham on 29.08.2020, edited by Mark Uhen

Creative Commons license: CC BY (attribution)