Birow, Hypselum Subzone, Polish Jura (Jurassic of Poland)

Also known as Reef 3438

Where: Poland (50.5° N, 19.6° E: paleocoordinates 42.3° N, 26.4° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Zawodzie Formation, Middle Oxfordian (161.2 - 155.7 Ma)

• Bimammatum Zone, Hypselum Subzone

• bed-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified limestone

• platy micritic limestones, well and evenly bedded

Size class: macrofossils

Primary reference: J. Trammer. 1989. Middle to Upper Oxfordian sponges of the Polish Jura. Acta Geologica Polonica 39(1-4):49-91 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 60850: authorized by Wolfgang Kiessling, entered by Uta Merkel on 26.05.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Hexactinellida
 Lychniscosa - Sporadopylidae
Xenoschrammenum alternans
Xenoschrammenum alternans Schrammen 1937 glass sponge
 Lychniscosa - Cypelliidae
Cypellia rugosa
Cypellia rugosa Goldfuss 1826 glass sponge
 Hexasterophora -
Hexactinosa indet.
Hexactinosa indet. Schrammen 1903 glass sponge
 Hexactinosa - Cribrospongiidae
"Tremadictyon sp." = Cribrospongia, "Walcotella pertusa" = Keuppiella pertusa
"Tremadictyon sp." = Cribrospongia d'Orbigny 1849 glass sponge
"Walcotella pertusa" = Keuppiella pertusa Goldfuss 1826 glass sponge
 Hexactinosa - Euretidae
Ramispongia ramosa
Ramispongia ramosa Quenstedt 1877 glass sponge
 Innaecoeliida - Craticulariidae
"Craticularia clathrata" = Laocoetis clathrata, Craticularia paralella
"Craticularia clathrata" = Laocoetis clathrata Goldfuss 1826 glass sponge
Demospongiae
 Spirosclerophorida - Discostromatidae
"Hyalotragos radiatum" = Pyrgochonia (Actinostrombus) radiata, Hyalotragos pezizoides, Hyalotragos patella
"Hyalotragos radiatum" = Pyrgochonia (Actinostrombus) radiata Goldfuss 1829 demosponge
Hyalotragos pezizoides Goldfuss 1833 demosponge
Hyalotragos patella Goldfuss 1826 demosponge
 Spirosclerophorida - Platychoniidae
Platychonia schlotheimi
Platychonia schlotheimi Goldfuss 1833 demosponge