Krasiejów locality (upper) (Triassic to of Poland)

Where: Opole, Poland (50.7° N, 18.2° E: paleocoordinates 33.3° N, 16.4° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Drawno Beds Formation, Carnian to Carnian (237.0 - 208.5 Ma)

• Dating of the Krasiejów assemblage has been based largely upon conchostracans and vertebrates (Dzik & Sulej 2007), which have been used to propose biostratigraphic correlations to the Hassberge (= Coburg Sandstone and Blasensandstein) and Weser formations (late Carnian) of the lower Middle Keuper of Germany. However, lithostratigraphic correlations to the Arnstadt Formation of Germany have been used to suggest an alternative, younger, early Norian age (e.g. Szulc 2005: Hallesches Jahrb. Geowiss. B 19:161-170).

• bed-level stratigraphic resolution

Environment/lithology: fluvial; poorly lithified claystone and gray, sandy, calcareous mudstone

• "flood deposit"
• "a horizontal claystone bed overlying an obliquely stratified mudstone sequence with locally developed calcareous grainstone beds and lenses."

Size classes: macrofossils, mesofossils, microfossils

Collected in 2000-

Collection methods: quarrying, chemical, mechanical,

Primary reference: J. Dzik and T. Sulej. 2007. A review of the early Late Triassic Krasiejów biota from Silesia, Poland. Palaeontologia Polonica 64:3-27 [R. Butler/R. Butler/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 61449: authorized by Matthew Carrano, entered by Matthew Carrano on 12.06.2006, edited by Richard Butler and Emma Dunne

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia indet.1 Linnaeus 1758 clam
 Temnospondyli - Metoposauridae
Metoposaurus diagnosticus4 Meyer 1842 tetrapod
"Very rare" in this horizon
 Temnospondyli - Cyclotosauridae
Cyclotosaurus intermedius6 Sulej and Majer 2005 tetrapod
 Dinosauromorpha - Silesauridae
Silesaurus opolensis n. gen. n. sp.1
Silesaurus opolensis n. gen. n. sp.1 Dzik 2003 ornithodiran
 Pterosauria -
? Pterosauria indet. pterosaur
Single vertebra; possibly represents Tanystropheus
 Pseudosuchia - Stagonolepididae
Stagonolepis olenkae5 Sulej 2010 archosaur
New species
 Loricata - Rauisuchidae
"Teratosaurus silesiacus" = Polonosuchus silesiacus3
"Teratosaurus silesiacus" = Polonosuchus silesiacus3 Sulej 2005 rauisuchid
 Phytosauria - Parasuchidae
"Paleorhinus sp." = Parasuchus
"Paleorhinus sp." = Parasuchus Lydekker 1885 archosaur
"Paleorhinus cf. arenaceus"
 Protorosauria - Sharovipterygidae
Ozimek volans n. gen. n. sp.2
Ozimek volans n. gen. n. sp.2 Dzik and Sulej 2016 archosauromorph
ZPAL AbIII/2512 (holotype: incomplete skeleton))
 Lepidosauria -
Rhynchocephalia indet. Günther 1867 rhynchocephalian
Undescribed complete dentary with teeth
Charophyta indet.1 Migula 1890