| Acteon petricolus | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Heterobranchia |
| Superfamily: | Acteonoidea |
| Family: | Acteonidae |
| Genus: | Acteon |
| Species: | †A. petricolus |
| Binomial name | |
| †Acteon petricolus Darragh, 1997 | |
Acteon petricolus is an extinct species of sea snail, a marine gastropod mollusc in the family Acteonidae. [1]
The length of the shell attains 9.5 mm, its diameter 5 mm.
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Fossils of this marine species is have been found in Paleocene strata in Victoria, Australia.
Acteonidae, common name the "barrel bubble snails", is a family of small sea snails, marine gastropod mollusks of the informal group Lower Heterobranchia.
Nautilus praepompilius is an extinct species of nautilus. It lived from the Late Paleocene through Oligocene epochs. The first fossil specimens discovered in the Late Eocene to Oligocene-aged Chegan Formation of Kazakhstan: an additional, older specimen was found in the Late or Latest Paleocene-aged Pebble Point Formation in Victoria, Australia. N. praepompilius has been grouped into a single genus together with extant species based on their shared shell characters. It is morphologically closest to N. pompilius, hence the name. The nepionic constriction shows that the hatching size was approximately 23 mm, close to that for N. pompilius. N. praepompilius, along with aff. N. cookanum fossils from the late Eocene Hoko River Formation in Washington state are the oldest occurrences of the genus.
Banksieaephyllum is a plant genus that encompasses organically preserved fossil leaves that can be attributed to the Proteaceae tribe Banksieae, but cannot be attributed to a genus.
Acteon is a genus of small sea snails, predatory marine gastropod mollusks in the family Acteonidae, the barrel bubble snails.
Athleta (Ternivoluta) studeri is a species of sea snail, a marine gastropod mollusk in the family Volutidae, the volutes.
Umbilia petilirostris is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.
Umbilia is a genus of sea snails, marine gastropod mollusks in the family Cypraeidae, the cowries.
Zoila is a genus of sea snails, marine gastropod molluscs in the family Cypraeidae, the cowries.
Umbilia hesitata, common name the umbilicate cowry or wonder cowry is a species of sea snail, a cowry, a marine gastropod mollusc in the family Cypraeidae, the cowries.
Maxacteon is a genus of small predatory sea snails, marine gastropod molluscs in the family Acteonidae, the barrel bubble snails.
Acteon retusus, common name the notched acteon, is a species of sea snail, a marine gastropod mollusc in the family Acteonidae.
Acteon fasuloi is a species of sea snail, a marine gastropod mollusc in the family Acteonidae.
Acteon fructuosus is a species of sea snail, a marine gastropod mollusc in the family Acteonidae.
Acteon dolichoroseus is a species of sea snail, a marine gastropod mollusc in the family Acteonidae.
Acteon subroseus is a species of sea snail, a marine gastropod mollusc in the family Acteonidae.
Acteon pelecais is a species of sea snail, a marine gastropod mollusc in the family Acteonidae.
Acteon senegalensis is a species of sea snail, a marine gastropod mollusc in the family Acteonidae.
Acteon olivellaeformis is an extinct species of sea snail, a marine gastropod mollusc in the family Acteonidae.
Acteon oneroaensis is an extinct species of sea snail, a marine gastropod mollusc in the family Acteonidae.
Acteon roseus is a species of sea snail, a marine gastropod mollusc in the family Acteonidae.
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