Krasiejów locality (lower) (Triassic to of Poland)

Where: Opole, Poland (50.7° N, 18.3° E: paleocoordinates 33.3° N, 16.4° E)

• coordinate estimated from map

• outcrop-level geographic resolution

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

• Main bone horizon at Krasiejów, 8 metres above a phytosaur skeleton at the base of the quarry.

•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; siltstone and sandstone

• anastomosing river system
• "homogenous, cross-bedded or horizontally-bedded siltstone, mudstone, sandy siltstone, and gravely sandstone"

Size classes: macrofossils, mesofossils, microfossils

Collected in 2000–

Collection methods: quarrying, chemical, mechanical,

Primary reference: J. Dzik, T. Sulej, A. Kaim and R. Niedzwiedzki. 2000. Póznotriasowe cmentarzysko kregowców ladowych w Krasiejowie na Slasku Opolskim [Post-Triassic graveyard of terrestrial vertebrates in Krasiejów in Opole, Silesia]. Przeglad Geologiczny 48(3):226-235 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 61448: authorized by Matthew Carrano, entered by Matthew Carrano on 12.06.2006, edited by Richard Butler and Maciej Ruciński

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Suchonella sp.2
Rare ostracod species
Gnathostomata
  -
Osteichthyes indet.2 bony fish
"Ganoid"; possibly "Dictyopyge" socialis
Amphibia
 Temnospondyli - Cyclotosauridae
Cyclotosaurus intermedius n. sp.6 Sulej and Majer 2005 tetrapod
 Temnospondyli - Metoposauridae
Metoposaurus diagnosticus Meyer 1842 tetrapod
Subspecies: Metoposaurus diagnosticus krasiejowensis
Reptilia
 Dinosauromorpha - Silesauridae
Silesaurus opolensis1 Dzik 2003 ornithodiran
ZPAL AbIII/1930, partial skull and articulated skeleton; additional isolated bones
 Phytosauria - Parasuchidae
"Paleorhinus sp." = Parasuchus
"Paleorhinus sp." = Parasuchus Lydekker 1885 archosaur
"Paleorhinus cf. arenaceus"
 Pseudosuchia - Stagonolepididae
Stagonolepis olenkae n. sp.5 Sulej 2010 aetosaur
New species
Osteichthyes
 Dipnoi - Ceratodontidae
? Ceratodus silesiacus2 Roemer 1870 lungfish
isolated tooth plates, and large thin bones with concentric increments
 Dipnoi - Ptychoceratodontidae
Ptychoceratodus roemeri n. sp.4 Skrzycki 2015 lungfish
Holotype - ZPAL AbIII/2393, lower tooth plate with attached prearticular fragment; Other studied material - Upper tooth plates (ZPAL AbIII/ 285, 307, 1180, 3269, 3270, 3277), lower tooth plates (ZPAL AbIII/1334, 23942396, 32723276, 32783280, UOPB 10821085, UPPAL 12), vomerine teeth (ZPAL AbIII/32813282), best-preserved scales (ZPAL AbIII/696, 26042614)
Gastropoda
  -
Gastropoda indet.2 Cuvier 1795 snail
Bivalvia
 Unionida - Silesunionidae
Silesunio parvus n. gen. n. sp.3
Silesunio parvus n. gen. n. sp.3 Skawina and Dzik 2011 clam
 Unionida - Unionidae
Unionidae indet. Rafinesque 1820 freshwater mussel
Deuteropoda
  -
Branchiopoda indet.1 Latreille 1817 branchiopod
"conchostracans"
Ostracoda
 Podocopida - Darwinulidae
Darwinula sp.2 Brady and Robertson 1885 ostracod
Most common ostracod species
Crustacea
  -
Crustacea indet.2 Brünnich 1772
"Crab-like crustacean...clearly relatives of the cycloid lineage of Halicyne"
Insecta
 Dicondylia -
Coleoptera indet.2 Linnaeus 1758 beetle
Elytra
 Coniferales -
 Charales - Characeae
Characeae indet. Agardh 1824
 Charales - Porocharaceae
Porochara triassica7
charophyte gyrogonite
Stomochara
  -
Stomochara starozhilovae7 Kisielevsky 1969
charophyte gyrogonite
Stenochara
  -
Stenochara kisielevskyi7 Bilan 1988
charophyte gyrogonite
Stellatochara
  -
Stellatochara germanica7 Kozur and Reinhardt 1969
charophyte gyrogonite