Fossilized spermatozoa preserved in a 50-Myr-old annelid cocoon from Antarctica

The spermatozoa of Hirudinea with examples from three different taxa

(2015) Raja Ben Ahmed et al.   ZOOLOGISCHER ANZEIGER

Illuminating the Base of the Annelid Tree Using Transcriptomics

(2014) Anne Weigert et al.   MOLECULAR BIOLOGY AND EVOLUTION

Subcellular preservation in giant ostracod sperm from an early Miocene cave deposit in Australia

(2014) R. Matzke-Karasz et al.   PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES

Triassic leech cocoon from Antarctica contains fossil bell animal

(2012) B. Bomfleur et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Phylogenomic analyses unravel annelid evolution

(2011) Torsten H. Struck et al.   NATURE

Early Jurassic annelid cocoons from eastern Australia

(2008) Ida-Maria Jansson‡ et al.   ALCHERINGA

Eocene climate record of a high southern latitude continental shelf: Seymour Island, Antarctica

(2008) L. C. Ivany et al.   GEOLOGICAL SOCIETY OF AMERICA BULLETIN

Combined-data phylogenetics and character evolution of Clitellata (Annelida) using 18S rDNA and morphology

(2008) ROBERTO MAROTTA et al.   ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY