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Early species of the bryozoan genus Phaenopora from the Caradoc Series, Shropshire

The Caradocian cryptostome Phaenopora stubblefieldi sp. nov. from the Hoar Edge Group, Shropshire, is one of the oldest known species of Phaenopora. Its morphologic features suggest a relation within the phylogenetic sequence of the escharoporid group that has its oldest known representative in the Chazy Series, North America. This group also includes the later Ordovician and Silurian genera: Escharopora, Graptodictya, Ptilodictya, Stictoporella, Phaenopora, and Clathropora.

Silurian monograptids from Illinois

Six species of Monograptus are recognized from five localities in and adjacent to Illinois. The basinal lithologies of the Moccasin Springs Formation in southern Illinois and south-east Missouri contain M. roemeri, M. colonus, M. varians and M. varians var.pumilus?, M. dubius, and M. butovicensis, and the inter-reef lithologies in central and northern Illinois contain M. bohemicus, M. cf. M. dubius, and M. colonus. These species are indicative of the monograptid zones that characterize the Lower Ludlow Shale in Great Britain.

A haplolepid fish fauna in the Early Pennsylvanian of Nova Scotia

A skull roof of the palaeoniscoid fish Haplolepis (Parakaplolepis) aff. anglica from the Lower Penn-sylvanian near Parrsboro, Nova Scotia, provides the earliest record of the Haplolepidae and the first from Canada. The subgenus ranges from middle Westphalian A to late Westphalian D. A small Gyracanthus spine confirms the survival of this acanthodian genus into Pennsylvanian time in North America.

The cuticle of some Middle Silurian ceratiocaridid Crustacea from Scotland

Well-preserved specimens of the Scottish Valentian phyllocarid Ceratiocaris papilio Salter and a giant form almost 2 feet long have been collected from concretions in the Ree Burn Formation of the Hagshaw Hills inlier. The cuticle of the crustaceans is preserved in cellophane, partially replaced by calcite. Moniliform ? porecanals, laminae, Balkenlagen, and prisms can be recognized in preparations of this exoskeletal cuticle, but no major stratifications are preserved.

Tertiary Bivalvia from Libya

The paper supplements existing accounts of the Tertiary mollusca of Libya, which are mostly by Italian authors, by describing several species, either new, newly recorded from this area, or imperfectly known previously. The species in question, which belong to the families Ostreidae, Vulsellidae, and Anomiidae, are as follows: Ostrea syrtica sp. nov.

The palaeoecology of the Actinocamax plenus Subzone (lowest Turonian) in the Anglo-Paris Basin

The plenus Subzone often conforms to a standard succession of eight beds, numbered 1 to 8 in ascending order. The distribution of aragonitic fossils in the plenus Subzone was probably controlled more by preservation than ecology. Preservation was determined firstly by temperature and secondly by turbulence.In late subglobosus times the distribution of macro- and microfauna was governed by depth of water, and the depth preferences of the various species of benthonic foraminifera were like those of their relatives in various times.
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