MOLLUSCHI

CAVITA’ DEL CORPOCAVITA’ DEL CORPOANELLIDAANELLIDA

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. 

http://www.palaeos.com/Invertebrates/Molluscs/Mollusca.Phylogeny.html

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.

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"

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).

1 mm

1 mm

1 mm

Caudofoveata

Caudofoveata

= Chaetodermomorpha

<100 specie3-5 famiglie

LimifossoridaeProchaetodermatidaeChaetodermatidae

?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