A PHOSPHATIC COPROLITE LACKING DIAGENETIC PERMINERALIZATION FROM THE UPPER CRETACEOUS HELL CREEK FORMATION, NORTHEASTERN MONTANA: IMPORTANCE OF DIETARY CALCIUM PHOSPHATE IN PRESERVATION

MIDDLE CAMBRIAN SPONGES FROM THE DRUM MOUNTAINS AND HOUSE RANGE IN WESTERN UTAH

Emsian (Late Early Devonian) Sponges from West-Central and South-Central Alaska

Pennsylvanian Sponges from the Graford Formation, Wise County, Texas

SILURIAN SPONGES AND SOME ASSOCIATED FOSSILS FROM THE HECETA LIMESTONE, PRINCE OF WALES ISLAND, SOUTHEASTERN ALASKA

HEXACTINELLID AND ASSOCIATED SPONGES FROM THE UPPER REEF TRAIL MEMBER OF THE BELL CANYON FORMATION, SOUTHERN GUADALUPE MOUNTAINS NATIONAL PARK, TEXAS

FIRST HEXACTINELLID SPONGE REPORTED FROM THE UPPER TRIASSIC NAYBAND FORMATION OF CENTRAL IRAN

A new hexactinellid sponge from the Cretaceous of Devon Island, Canadian High Arctic

A NEW, LARGE, LATE PLEISTOCENE DEMOSPONGE FROM SOUTHEASTERN FLORIDA

First documentation of tidal-channel sponge biostromes (upper Pleistocene, southeastern Florida)

Hikorocodium Endo is not an alga but an inozoid sponge

A NEW ORDOVICIAN CHIASTOCLONELLID SPONGE FROM INNER MONGOLIA, CHINA

ORDOVICIAN “SPHINCTOZOAN” SPONGES FROM PRINCE OF WALES ISLAND, SOUTHEASTERN ALASKA

SPONGES AND ASSOCIATED FOSSILS FROM THE PENNSYLVANIAN CARBONDALE FORMATION OF NORTHWESTERN ILLINOIS

A NEW HEXACTINELLID SPONGE FROM THE REEF TRAIL MEMBER OF THE UPPER GUADALUPIAN BELL CANYON FORMATION, GUADALUPE MOUNTAINS NATIONAL PARK, TEXAS

CYSTOTHALAMIA VANDEGRAAFFI NEW SPECIES AND OTHER SPHINCTOZOAN SPONGES FROM THE UPPER CARBONIFEROUS OF SPAIN

An unusually large Aulocopella winnipegensis and associated demosponges from the Upper Ordovician Beaverfoot Formation, southeastern British Columbia

FIRST OCCURRENCE OF AN IN SITU ANTHASPIDELLID SPONGE IN A DENDROLITE MOUND (UPPER CAMBRIAN; GREAT BASIN, USA)

DEVONIAN AND CARBONIFEROUS SPONGES FROM SPAIN

A NEW OCCURRENCE OF THE “HYDROZOAN” RADIOTRABECULOPORA RETICULATA IN THE PERMIAN OF CALIFORNIA