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
Bivalvia | |
Pholadomya escheri clam | |
Anisocardia sp. Munier-Chalmas 1863 clam | |
"Eopecten aff. aubryi" = Eopecten velatus, Chlamys aff. luciensis
"Eopecten aff. aubryi" = Eopecten velatus Goldfuss 1833 scallop
Chlamys aff. luciensis scallop | |
Plagiostoma sp. Sowerby 1814 file clam | |
Placunopsis sp. Morris and Lycett 1853 scallop | |
Propeamussium brevicostatum mud scallop | |
Entolium spathulatum scallop | |
Rhynchonellata | |
Mondegia atla Oppel 1863 | |
Caucasella trigonella Rothpletz 1886 | |
Capillirhynchia cf. biplicosa, Capillirhynchia solitaria, Striirhynchia subechinata, Rhynchonella sp., Rhynchonella acutiloba
Capillirhynchia solitaria Oppel 1860
Striirhynchia subechinata Oppel 1863
Rhynchonella sp. Fischer 1809
Rhynchonella acutiloba Deslongchamps 1856 | |
Aulacothyris cf. pala Buch 1833 | |
"Aromasithyris subcanaliculata" = Ptyctothyris subcanaliculata
"Aromasithyris subcanaliculata" = Ptyctothyris subcanaliculata Oppel 1856 | |
Dictyothyris sp. Douville 1880 | |
Karadagithyris gerda Oppel 1863 | |