Cephalopods and paleoenvironments of the Fort Cassin Formation (upper Lower Ordovician), eastern New York and adjacent Vermont

Taxonomy and biostratigraphy of the Late Albian Actinoceramus sulcatus lineage (Early Cretaceous Bivalvia, Inoceramidae)

(2016) James S. Crampton et al.   JOURNAL OF PALEONTOLOGY

A New Genus of Middle Tremadocian Orthoceratoids and the Early Ordovician Origin of Orthoceratoid Cephalopods

(2010) Björn Kröger   ACTA PALAEONTOLOGICA POLONICA

Discosorids and Oncocerids (Cephalopoda) of the Middle Ordovician Kunda and Aseri Regional Stages of Baltoscandia and the early evolution of these groups

(2009) Björn Kröger et al.   GEOBIOS

Pulsed cephalopod diversification during the Ordovician

(2009) Björn Kröger et al.   PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY

The Ordovician Biodiversification: revolution in the oceanic trophic chain

(2008) THOMAS SERVAIS et al.   LETHAIA

Body size, energetics, and the Ordovician restructuring of marine ecosystems

(2008) Seth Finnegan et al.   PALEOBIOLOGY