Homology and parallelism in arthropod sensory processing

The brain of the Remipedia (Crustacea) and an alternative hypothesis on their phylogenetic relationships

“…40 and 41). Moreover, studies on brain anatomy (13)(14)(15)(16)(17) and on the structure and development of the ventral nerve cord (42,43) have revealed striking similarities of malacostracan and hexapodan nervous systems. Because of the lack of data concerning the ''myriapodan'' taxa, we have included only the Hexapoda in our phylogenetic analysis (Fig.…”

“…Studies on the structure of the central nervous system of other crustaceans recently have provided a wealth of characters contributing valuable arguments to the debate on arthropod phylogeny (13)(14)(15)(16)(17). However, the brain architecture of Remipedia has not been explored so far.…”

Phylogenetisches Symposium Göttingen

“…"Die molekularen Methoden haben sich durchgesetzt, weil sie innerhalb weniger Jahre überzeugend bewiesen haben, dass sie bei der Rekonstruktion phylogenetischer Verwandtschaften den klassischen morphologischen Merkmalen überlegen sind" (Bachmann 1999: 20 Paul (1989Paul ( ,1990, a neurobiologist from the University of Victoria/Canada who brought together the topics "nervous system" and "phylogeny" to coin the term "neural phylogeny" which was analysed by a "neurophylogenist". Structure and development of the nervous system more than before contribute important arguments to the revived debate on arthropod relationships (reviews e. g. Arbas et al 1991, Breidbach 1995, Kutsch and Breidbach 1995, Strausfeld et al 1995, Whitington 1996, Nilsson and Osorio 1997, Whitington and Bacon 1997, Strausfeld 1998, Strausfeld and Hildebrand 1999, Paulus 2000, Dohle 2001, Harzsch 2001a, Richter 2002a, Harzsch 2003a − The number and course of the neurites with respect to the ganglionic framework.…”

“…Due to the complex geometrical arrangement of these cells that form a functional optical unit the design of the arthropod visual system provides a wealth of morphological characters that play a key role for our understanding of the phylogenetic relationships within this group and the evolution of eye design (reviews e.g. : Paulus 1979, Elofsson 1992, Melzer et al 1997, Gaten 1998, Richter 1999, Paulus 2000, Dohle 2001, Richter 2002a, b, Bitsch and Bitsch 2005, Harzsch et al 2005a, Harzsch and Hafner 2006, Nilsson and Kelber 2007; see also Mayer 2006, Harzsch andMelzer 2006). Some authors have mapped the different kinds of optical design onto existing phylogenetic hypotheses in order to gain insight into the evolution of optical mechanisms within certain arthropod groups ( Fig.…”

“…To my knowledge it was Dorothy Paul (1989Paul ( ,1990, a neurobiologist from the University of Victoria/Canada who brought together the topics "nervous system" and "phylogeny" to coin the term "neural phylogeny" which was analysed by a "neurophylogenist". Structure and development of the nervous system more than before contribute important arguments to the revived debate on arthropod relationships (reviews e. g. Arbas et al 1991, Breidbach 1995, Kutsch and Breidbach 1995, Strausfeld et al 1995, Whitington 1996, Nilsson and Osorio 1997, Whitington and Bacon 1997, Strausfeld 1998, Strausfeld and Hildebrand 1999, Paulus 2000, Dohle 2001, Harzsch 2001a, Richter 2002a, Harzsch 2003a) so that arthropod "neurophylogeny" is now a well-established and active discipline (e.g. : Harzsch 2002a, 2003b, Fahrbach 2004, Loesel 2005, Harzsch et al 2005a, Strausfeld 2005, Harzsch 2006).…”