Pleurotomariacea

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Pleurotomariacea
Temporal range: U Cam - Rec
Entemnotrochus rumphii.jpg
Apertural view of a shell of Entemnotrochus rumphii
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
Order:
Archaeogastropoda [1]
Superfamily:
Pleurotomariacea
Families

See text

Pleurotomariacea is one of two names that are used for a taxonomic superfamily of sea snails that are an ancient lineage and are well represented in the fossil record. The name Pleurotomariacea is used by paleontologists, who, because they usually have only the hard parts of mollusks to study, often use a slightly different scheme of classification from that used by scientists who study living mollusks.

The name Pleurotomariacea is based on Swainson, 1840 (Pleurotomariae) and was described in 1960 in the Treatise on Invertebrate Paleontology, (I197) [2] The taxon was established for mostly conispiral, but also discoidal and auriform (ear-like) shells which have a nacreous, aragonite, inner layer.

The Pleurotomariacea, now often seen as Pleurotomarioidea, has been included in the Archaegastropoda. [3] although more recent classifications put it in a more restricted sense in the Vetigastropoda [4]

The evolutionary derivation of the group is thought to be from the Bellerophontacea and to have happened late in the Cambrian. Earlier gastropods belonged to the Helcionellacea, Bellerophontacea, and questionably to the Palegiellacea. [2]

The Treatise lists the following families, here in alphabetical order. Catantostomatidae, Eotomariidae, Euomphalopteridae, Gosselitinidae, Haliotidae, Kittlidiscidae, Laubellidae, Lophospiridae, Luciellidae, Phanerotrematidae, Phymatopleuridae, Pleurotromariidae, Polytremerida, Portlockiellidae, Rhaphischismatidae, Raphystomatidae, Scissurellidae, Sinuopeidae, Tremnotropidae, Trochotomidae, Zygitidae.

Bouchet & Rocroi, 2005, with a greater emphasis on molecular characteristics than shell characters, limited the Pleurotomariacea, as Pleurotomarioidea, to the Pleurotomariidae, Catantostomatidae, Kittilidacidae, Phymatopleuridae, Portlockiellidae, Rhaphischismatidae, Trochotomidae, and Zygitidae. The other families that are included in this superfamily in the Treatise have been reassigned by Bouchet & Rocroi to other higher taxa.

Recent families

The following are the Recent families in the superfamily, along with their respective living species: [5]

Related Research Articles

Abalone Common name for a group of sea snails

Abalone is a common name for any of a group of small to very large marine gastropod molluscs in the family Haliotidae.

<i>Haliotis cracherodii</i> Species of gastropod

Haliotis cracherodii, the black abalone, is a species of large edible sea snail, a marine gastropod mollusk in the family Haliotidae, the abalones.

Pāua Māori name for several species of sea snail

Pāua is the Māori name given to three New Zealand species of large edible sea snails, marine gastropod molluscs which belong to the family Haliotidae, known in the United States and Australia as abalone, and in the United Kingdom as ormer shells. Pāua has entered English through common use in the New Zealand English dialect, and is both singular and plural, following the grammar rules of its original language.

<i>Haliotis sorenseni</i> Species of gastropod

The white abalone, scientific name Haliotis sorenseni, is a species of large sea snail, a marine gastropod mollusk in the family Haliotidae, the abalones.

<i>Haliotis kamtschatkana</i> Species of gastropod

Haliotis kamtschatkana, common name the northern abalone or pinto abalone, is a species of large sea snail, a marine gastropod mollusc in the family Haliotidae, the abalones.

<i>Haliotis asinina</i> Species of gastropod

Haliotis asinina, common name the ass's-ear abalone, is a fairly large species of sea snail, a tropical gastropod mollusk in the family Haliotidae, the abalones, also known as ormers or paua. Both the common name and the scientific name are based on the shape of the shell, which is long, narrow and curved, resembling the shape of a donkey's ear.

<i>Haliotis rufescens</i> Species of gastropod

Haliotis rufescens is a species of very large edible sea snail in the family Haliotidae, the abalones, ormer shells or paua. It is distributed from British Columbia, Canada, to Baja California, Mexico. It is most common in the southern half of its range.

Green ormer Species of gastropod

The green ormer is a northeast Atlantic and Mediterranean species of sea snail, a coastal marine gastropod mollusc in the family Haliotidae, the abalones or ormer snails.

<i>Perotrochus</i> Genus of gastropods

Perotrochus is a genus of large sea snails with gills and an operculum, marine gastropod mollusks in the family Pleurotomariidae, the slit snails,.

<i>Haliotis pourtalesii</i> Species of gastropod

Haliotis pourtalesii, common name Pourtale's abalone, is a rare species of deepwater sea snail, a marine gastropod mollusk in the family Haliotidae, the abalones.

<i>Haliotis gigantea</i> Species of gastropod

Haliotis gigantea, common name the giant abalone, is a species of sea snail, a marine gastropod mollusk in the family Haliotidae, the abalones. It is known as Siebold's Abalone, after Philipp Franz von Siebold.

<i>Haliotis diversicolor</i> Species of gastropod

Haliotis diversicolor, common name the variously coloured abalone, is a species of sea snail, a marine gastropod mollusk in the family Haliotidae, the abalones.

<i>Haliotis fulgens</i> Species of gastropod

Haliotis fulgens, commonly called the green abalone, is a species of large sea snail, a marine gastropod mollusc in the family Haliotidae, the abalones. The shell of this species is usually brown, and is marked with many low, flat-topped ribs which run parallel to the five to seven open respiratory pores that are elevated above the shell's surface. The inside of the shell is an iridescent blue and green.

<i>Haliotis queketti</i> Species of gastropod

Haliotis queketti, common name Quekett's abalone, is a species of sea snail, a marine gastropod mollusk in the family Haliotidae, the abalones.

<i>Entemnotrochus adansonianus</i> Species of gastropod

Entemnotrochus adansonianus, common name Adanson's slit shell, is a species of sea snail, a marine gastropod mollusk in the family Pleurotomariidae.

<i>Mikadotrochus</i> Genus of gastropods

Mikadotrochus is a genus of sea snails, marine gastropod mollusks in the family Pleurotomariidae, the slit snails.

<i>Mikadotrochus hirasei</i> Species of gastropod

Mikadotrochus hirasei, common name the emperor's slit shell, is a species of large deepwater sea snail, a marine gastropod mollusk in the family Pleurotomariidae, the slit snails.

<i>Haliotis varia</i> Species of gastropod

Haliotis varia, common name the variable abalone or the common ear shell, is a species of sea snail, a marine gastropod mollusk in the family Haliotidae, the abalones.

<i>Mikadotrochus salmianus</i> Species of gastropod

Mikadotrochus salmianus, common name the Salmiana slit shell, is a species of large sea snail, a marine gastropod mollusk in the family Pleurotomariidae, the slit snails.

<i>Haliotis</i> Genus of gastropods

Haliotis, common name abalone, is the only genus in the family Haliotidae.

References

  1. ↑ “Pleurotomaria (Perotrochus) hirasei”
  2. 1 2 Treatise on Invertebrate Paleontology Part I, R.C. Moore (ed) Geol Soc of America and Univ. Kansas Press, 1960.
  3. ↑ "Answers - the Most Trusted Place for Answering Life's Questions". Answers.com .
  4. ↑ Classification of P. Bouchet et al. 2005
  5. ↑ “PLEUROTOMARIACEA”
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