Presentazione di PowerPoint

Presentazione di PowerPoint

MOLLUSCHI ANELLIDA CAVITA DEL CORPO http://www.palaeos.com/Invertebrates/Molluscs/Mollusca.Phylogeny.html

Aguinaldo, AMA, JM Turbeville, LS Linford, MC Rivera, JR Garey, RA Raff, & JA Lake (1997), Evidence for a clade of nematodes, arthropods and other moulding animals. Nature 387: 489-493. Giribet G, & C Ribera (1998), The position of arthropods in the animal

kingdom: a search for a reliable outgroup for internal arthropod phylogeny. Mol Phylogen. Evol. 9: 481-488. The "Procoelomates"

Peterson, KJ & DJ Eernisse (2001), Animal phylogeny and the ancestry of bilaterians: inferences from morphology and 18S rDNA gene sequences. Evol. Devel. 3: 170-205. Radiation of the

mollusks from the hypothetical ancestral mollusk Salvini-Plawen and the Neontological Perspective subphylum Aculifera : Aplacophora

Chaetodermomorpha (= Caudofoveata) Neomeniomorpha (= Solenogastres) Polyplacophora (Chitons). Subphylum Conchifera: Monoplacophora (Trybliida) Visceroconcha (=Cyrtosoma) Gastropoda

Cephalopoda Loboconcha (=Diasoma) Scaphopoda Bivalvia Salvini-Plawen and the Neontological Perspective

Salvini-Plawen and the Neontological Perspective Subphylum Conchifera: Monoplacophora (Trybliida) Visceroconcha (=Cyrtosoma) Gastropoda Cephalopoda

Loboconcha (=Diasoma) Scaphopoda Bivalvia Subphylum Aculifera : Aplacophora Chaetodermomorpha (= Caudofoveata) Neomeniomorpha (= Solenogastres)

Polyplacophora (Chitons). Caudofoveata 1 mm 1 mm

1 mm Caudofoveata = Chaetodermomorpha <100 specie

3-5 famiglie Limifossoridae Prochaetodermatidae Chaetodermatidae ?5 specie in Italia ?10-15 in Mediterraneo

Solenogastres =Neomeniomorpha Solenogastres ca 25 famiglie >70 generi >200 specie

Ipotesi di mollusco ancestrale, tradizionale e moderno

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