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, LARGE, LATE PLEISTOCENE DEMOSPONGE FROM SOUTHEASTERN FLORIDA

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

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

SPONGES FROM THE PARK CITY FORMATION (PERMIAN) OF WYOMING

MIDDLE ORDOVICIAN LITHISTID SPONGES FROM THE BACHU-KALPIN AREA, XINJIANG, NORTHWESTERN CHINA

Hexactinellid and calcareous sponges from the Pennsylvanian (Moscovian) Dikanre Formation from Xinjiang-Uygur Autonomous Region, northwestern People's Republic of China

Biogeography of Ordovician sponges

Silurian hexactinellid sponges from northern British Columbia, Canada