| Cenozoic |
 |
| Auxoprunum stauraxonium Haeckel |
| ?Recent |
| Owen Basin, Arabian Sea, N.W. Indian Ocean |
| overall length 280 microns SEM |
 |
| Euchitonia furcata Ehrenberg |
| ?Recent |
| Owen Basin, Arabian Sea, N.W. Indian Ocean |
| overall length 170 microns SEM |
 |
| Pterocanium praetaxum (Ehrenberg) |
| ?Recent |
| Owen Basin, Arabian Sea, N.W. Indian Ocean |
| overall length 170 microns SEM |
 |
| Lamprocyclus maritalus Haeckel |
| ?Lower Oligocene-Recent |
| Owen Basin, Arabian Sea, N.W. Indian Ocean |
| overall length 180 microns SEM |
 |
| Dictyocoryne truncatum (Ehrenberg) |
| ?Recent |
| Owen Basin, Arabian Sea, N.W. Indian Ocean |
| overall length 90 microns SEM |
 |
| Spongaster tetras tetras Ehrenberg |
| Upper Pliocene-Recent |
| Owen Basin, Arabian Sea, N.W. Indian Ocean |
| overall length 180 microns SEM |
 |
| Actinomma sp. |
| ?Recent |
| Owen Basin, Arabian Sea, N.W. Indian Ocean |
| 190 microns SEM |
 |
| Actinomma arcadophorum Haeckel |
| ?Recent |
| Owen Basin, Arabian Sea, N.W. Indian Ocean |
| 180 microns SEM |
 |
| Cenosphaera cristata Haeckel |
| ?Recent |
| Owen Basin, Arabian Sea, N.W. Indian Ocean |
| 180 microns SEM |
 |
| Porodiscus sp. |
| ?Recent |
| Owen Basin, Arabian Sea, N.W. Indian Ocean |
| 170 microns SEM |
 |
| Porodiscus sp. |
| ?Recent |
| Owen Basin, Arabian Sea, N.W. Indian Ocean |
| 170 microns LM |
 |
| Pterocanium sp. |
| ?Recent |
| Owen Basin, Arabian Sea, N.W. Indian Ocean |
| LM |
 |
| Botrystrobus aquilonarius (Bailey) |
| ?Recent |
| Owen Basin, Arabian Sea, N.W. Indian Ocean |
| LM |
 |
| Pylospira octapyle Haeckel |
| ?Recent |
| Owen Basin, Arabian Sea, N.W. Indian Ocean |
| LM |
 |
| Anthrocyrtidinium oriphense (Ehrenberg) |
| ?Recent |
| Owen Basin, Arabian Sea, N.W. Indian Ocean |
| LM |
 |
| Stylosphaera sp. |
|
| Rio Claro, Eastern Andalusia, Spain |
| 300 microns excluding spines SEM |
 |
| Stylochlamydium asteriscus Haeckel |
|
| Rio Claro, Eastern Andalusia, Spain |
| SEM |
 |
| Stylochlamydium asteriscus Haeckel |
|
| Rio Claro, Eastern Andalusia, Spain |
| SEM |
 |
| Cyrtocapsella cornuta Haeckel |
| Lower-Middle Miocene |
| Rio Claro, Eastern Andalusia, Spain |
| SEM |
 |
| Dictyocoryne spp. Ehrenberg |
|
| Rio Claro, Eastern Andalusia, Spain |
| SEM |
 |
| Stylosphaera sp. Ehrenberg |
|
| Rio Claro, Eastern Andalusia, Spain |
| 150 microns SEM |
 |
| Lamprocyclas maritalis Haeckel |
|
| Rio Claro, Eastern Andalusia, Spain |
| SEM |
 |
| Lamprocyclas maritalis Haeckel |
|
| Rio Claro, Eastern Andalusia, Spain |
| SEM |
 |
| Stichocorys delemontensis (Campbell and Clark) |
| Lower Miocene-Upper Miocene |
| Rio Claro, Eastern Andalusia, Spain |
| SEM |
 |
| Lychnocanoma elongata (Vinassa de Regny) |
| Lower Miocene |
| Rio Claro, Eastern Andalusia, Spain |
| SEM |
|
| Mesozoic |
 |
| Archaeospongoprunum cortinaensis (Pessagno) |
| ?Upper Cretaceous? |
| Hacho de Montejaque, Penibetic, Southern Spain |
| SEM |
 |
| Archaeospongoprunum cf. bipartum Pessagno |
| Upper Cretaceous |
| Hacho de Montejaque, Penibetic, Southern Spain |
| SEM |
 |
| Halesium triacanthum (Squinabol) |
| Upper Cretaceous |
| Hacho de Montejaque, Penibetic, Southern Spain |
| SEM |
 |
| Triactoma hexeris (O'Dogherty) |
| ?Upper Cretaceous |
| Hacho de Montejaque, Penibetic, Southern Spain |
| SEM |
 |
| Paronaella grapevinensis (Pessagno) |
| ?Upper Cretaceous |
| Hacho de Montejaque, Penibetic, Southern Spain |
| SEM |
 |
| Distylocapsa veneta (Squinabol) |
| ?Upper Cretaceous |
| Hacho de Montejaque, Penibetic, Southern Spain |
| SEM |
 |
| Vitorfus minimus (Squinabol) |
| ?Upper Cretaceous |
| Hacho de Montejaque, Penibetic, Southern Spain |
| SEM |
 |
| Acanthoicircus tympanum (O'Dogherty) |
| ?Upper Cretaceous |
| Hacho de Montejaque, Penibetic, Southern Spain |
| SEM |
 |
| Thanarla venta (Squinabol) |
| ?Upper Cretaceous |
| Hacho de Montejaque, Penibetic, Southern Spain |
| SEM |
 |
| Patellula cognata (O'Dogherty) |
| ?Upper Cretaceous |
| Hacho de Montejaque, Penibetic, Southern Spain |
| SEM |
 |
| Alievium superbum (Squinabol) |
| ?Upper Cretaceous |
| Hacho de Montejaque, Penibetic, Southern Spain |
| SEM |
 |
| Alievium superbum (Squinabol) |
| ?Upper Cretaceous |
| Hacho de Montejaque, Penibetic, Southern Spain |
| SEM (close up of pore frames) |
 |
| Ultranapora cretacea (Squinabol) |
| ?Upper Cretaceous |
| Hacho de Montejaque, Penibetic, Southern Spain |
| SEM |
 |
| Dictyomitra montisserei (Squinabol) |
| ?Upper Cretaceous |
| Hacho de Montejaque, Penibetic, Southern Spain |
| SEM |
 |
| Pseudodictyomitra pseudomarcrocephala (Squinabol) |
| ?Upper Cretaceous |
| Hacho de Montejaque, Penibetic, Southern Spain |
| SEM |
 |
| Crucella cachensis Pessagno |
| ?Upper Cretaceous |
| Hacho de Montejaque, Penibetic, Southern Spain |
| SEM |
 |
| Sciadiocapsa radiata (Squinabol) |
| ?Upper Cretaceous |
| Hacho de Montejaque, Penibetic, Southern Spain |
| SEM |
 |
| Archaeodictyomitra sp. |
| Jurassic-Cretaceous |
| Theokafta, Epidavros, Greece |
| 140 microns SEM |
 |
| Hsuum maxwelli Pessagno |
| ?Jurassic-Cretaceous? |
| Theokafta, Epidavros, Greece |
| 200 microns SEM |
 |
| Unuma echinatus Ichikawa and Yao |
| Aalanian-Bathonian (Jurassic) |
| Theokafta, Epidavros, Greece |
| 180 microns SEM |
 |
| Protunuma fusiformis Ichikawa and Yao |
| Bathonian-Tithonian (Jurassic) |
| Theokafta, Epidavros, Greece |
| 190 microns SEM |
 |
| Zamoidellum ovum Dumitrica |
| Oxfordian-Tithonian (Jurassic) |
| Theokafta, Epidavros, Greece |
| 110 microns SEM |
 |
| Tricolocapsa plicarum Yao |
| Bajocian-Bathonian (Jurassic) |
| Theokafta, Epidavros, Greece |
| 130 microns SEM |
 |
| Parvicingula dhimenaensis Baumgartner |
| Bajocian-Tithonian (Jurassic) |
| Theokafta, Epidavros, Greece |
| 255 microns SEM |