- Title Pages
- Preface to third edition
- Preface to second edition
- Preface to first edition
-
1 Introduction -
2 ANIMALIA (METAZOA) -
3 Prelude: Phylum Choanoflagellata -
4 Early animal radiation -
5 Phylum Silicea -
6 EURADICULATA -
7 Phylum Calcarea -
8 PROEPITHELIOZOA -
9 Phylum Homoscleromorpha -
10 EUMETAZOA (GASTRAEOZOA) -
11 Phylum Placozoa -
12 NEURALIA -
13 Phylum Cnidaria -
14 TRIPLOBLASTICA -
15 Phylum Ctenophora -
16 BILATERIA -
17 ACOELOMORPHA -
18 Phylum Acoela -
19 Phylum Nemertodermatid -
20 Phylum Xenoturbellida -
21 EUBILATERIA -
22 PROTOSTOMIA -
23 SPIRALIA (LOPHOTROCHOZOA) -
24 SCHIZOCOELIA -
25 Phylum Annelida -
26 Phylum Sipuncul -
27 Phylum Mollusca -
28 Phylum Nemertin -
29 Phylum Platyhelminthes -
30 Phylum Gastrotricha -
31 GNATHIFERA -
32 Phylum Gnathostomulida -
33 Phylum Micrognathozoa -
34 Phylum Rotifera -
35 POLYZOA (BRYOZOA s.l.) -
36 Phylum Entoprocta -
37 Phylum Cycliophora -
38 Phylum Bryozo (Ectoprocta) -
39 BRACHIOZOA -
40 Phylum Phoronida -
41 Phylum Brachiopoda -
42 ECDYSOZOA -
43 PANARTHROPODA -
44 Phylum Arthropoda -
45 Phylum Onychophora -
46 Phylum Tardigrada -
47 CYCLONEURALIA -
48 NEMATOIDEA -
49 Phylum Nematoda -
50 Phylum Nematomorpha -
51 SCALIDOPHORA -
52 Phylum Priapul -
53 Phylum Kinorhynch -
54 Phylum Loricifera -
55 Phylum Chaetognatha -
56 DEUTEROSTOMIA -
57 AMBULACRARIA -
58 Phylum Echinodermata -
59 HEMICHORDATA -
60 Phylum Enteropneusta -
61 Phylum Pterobranchia -
62 CHORDATA -
63 Phylum Cephalochordata -
64 Phylum Urochordata -
65 Phylum Vertebrata (Craniata) -
66 Problematica - Systematic index
- Subject index
- Plates
Prelude: Phylum Choanoflagellata
Prelude: Phylum Choanoflagellata
Comprised of only about 200 species, the Choanoflagellata is a small phylum that occurs in most aquatic habitats. Choanoflagellates are unicellular, solitary, or colony-forming ‘flagellates’ without chloroplasts, and are either pelagic or sessile. They reproduce by binary fission, and sexual reproduction is implied by the presence of conserved meiotic genes. In addition, choanoflagellates have a complicated life cycle. Their sister-group relationship with metazoans is supported by morphological and molecular evidence.
Keywords: choanoflagellates, Choanoflagellata, binary fission, sexual reproduction, meiotic genes, life cycle, metazoans
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- Title Pages
- Preface to third edition
- Preface to second edition
- Preface to first edition
-
1 Introduction -
2 ANIMALIA (METAZOA) -
3 Prelude: Phylum Choanoflagellata -
4 Early animal radiation -
5 Phylum Silicea -
6 EURADICULATA -
7 Phylum Calcarea -
8 PROEPITHELIOZOA -
9 Phylum Homoscleromorpha -
10 EUMETAZOA (GASTRAEOZOA) -
11 Phylum Placozoa -
12 NEURALIA -
13 Phylum Cnidaria -
14 TRIPLOBLASTICA -
15 Phylum Ctenophora -
16 BILATERIA -
17 ACOELOMORPHA -
18 Phylum Acoela -
19 Phylum Nemertodermatid -
20 Phylum Xenoturbellida -
21 EUBILATERIA -
22 PROTOSTOMIA -
23 SPIRALIA (LOPHOTROCHOZOA) -
24 SCHIZOCOELIA -
25 Phylum Annelida -
26 Phylum Sipuncul -
27 Phylum Mollusca -
28 Phylum Nemertin -
29 Phylum Platyhelminthes -
30 Phylum Gastrotricha -
31 GNATHIFERA -
32 Phylum Gnathostomulida -
33 Phylum Micrognathozoa -
34 Phylum Rotifera -
35 POLYZOA (BRYOZOA s.l.) -
36 Phylum Entoprocta -
37 Phylum Cycliophora -
38 Phylum Bryozo (Ectoprocta) -
39 BRACHIOZOA -
40 Phylum Phoronida -
41 Phylum Brachiopoda -
42 ECDYSOZOA -
43 PANARTHROPODA -
44 Phylum Arthropoda -
45 Phylum Onychophora -
46 Phylum Tardigrada -
47 CYCLONEURALIA -
48 NEMATOIDEA -
49 Phylum Nematoda -
50 Phylum Nematomorpha -
51 SCALIDOPHORA -
52 Phylum Priapul -
53 Phylum Kinorhynch -
54 Phylum Loricifera -
55 Phylum Chaetognatha -
56 DEUTEROSTOMIA -
57 AMBULACRARIA -
58 Phylum Echinodermata -
59 HEMICHORDATA -
60 Phylum Enteropneusta -
61 Phylum Pterobranchia -
62 CHORDATA -
63 Phylum Cephalochordata -
64 Phylum Urochordata -
65 Phylum Vertebrata (Craniata) -
66 Problematica - Systematic index
- Subject index
- Plates
