Where: Hungary (45.9° N, 18.5° E: paleocoordinates 28.7° N, 25.6° E)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Gracilis ammonoid zone, Templomhegy & Alagut Bed Member (Villány Formation), Early/Lower Callovian to Early/Lower Callovian (164.7 - 161.2 Ma)
• bed-level stratigraphic resolution
Environment/lithology: deep subtidal; lithified, oncoidal, ooidal, sandy grainstone and lithified, oncoidal mudstone
•probably somewhat deeper than the subjacent Alta´ro´
•Bed
•texture; the mostly superficial ferruginous ooids,
•0.1–0.5 mm in diameter usually bear quartz or dolomite
•grains in their cores; composite grains (grapestones) occur
•also (Fig. 6g). The dominantly oncoidal parts may be
•termed as rudstones with grain-supported mega-texture.
•
•The light-yellow to buff mudstone with fine blackish
•infiltrations (dendrites) is packed with ammonoids and
•belemnite rostra. Several cm-thick stromatolite mats with
•LLH structure and polygonal surface are common (Fig. 7a,
•b, d). The fossils are commonly coated with thick calcareous
•stromatolite encrustations (oncoids) sometimes of
•complex structure, including corals (Fig. 7c, e).
Size class: macrofossils
Primary reference: A. Vörös. 2011. Episodic sedimentation on a peri-Tethyan ridge through the Middle-Late Jurassic transition (Villany Mountains, southern Hungary). Facies [M. Aberhan/D. Wellmanns]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 127112: authorized by Martin Aberhan, entered by Daniel Wellmanns on 25.04.2012
Creative Commons license: CC BY (attribution)
Taxonomic list
Rhynchonellata | |
Rhynchonella sp., Rhynchonella acutiloba, Striirhynchia subechinata, Capillirhynchia cf. biplicosa, Capillirhynchia solitaria
Rhynchonella sp. Fischer 1809
Rhynchonella acutiloba Deslongchamps 1856
Striirhynchia subechinata Oppel 1863
Capillirhynchia solitaria Oppel 1860 | |
Mondegia atla Oppel 1863 | |
Caucasella trigonella Rothpletz 1886 | |
Aulacothyris cf. pala Buch 1833 | |
Dictyothyris sp. Douville 1880 | |
Karadagithyris gerda Oppel 1863 | |
"Aromasithyris subcanaliculata" = Ptyctothyris subcanaliculata
"Aromasithyris subcanaliculata" = Ptyctothyris subcanaliculata Oppel 1856 | |
Bivalvia | |
Plagiostoma sp. Sowerby 1814 file clam | |
Placunopsis sp. Morris and Lycett 1853 scallop | |
Chlamys aff. luciensis, "Eopecten aff. aubryi" = Eopecten velatus
Chlamys aff. luciensis scallop
"Eopecten aff. aubryi" = Eopecten velatus Goldfuss 1833 scallop | |
Propeamussium brevicostatum mud scallop | |
Entolium spathulatum scallop | |
Pholadomya escheri clam | |
Anisocardia sp. Munier-Chalmas 1863 clam |