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Palaeoheterodonta
Sign in to savePalaeoheterodonta is a subterclass of bivalve molluscs. It contains the extant orders Unionida (freshwater mussels) and Trigoniida. They are distinguished by having the two halves of the shell be of equal size and shape, but by having the hinge teeth be in a single row, rather than separated into two groups, as they are in the clams and cockles.
In the Vinony graph
Within Vinony's link graph, Palaeoheterodonta is referenced by 11 other articles, and connects out to Mollusca, Bivalvia and Heterodonta.
Vinony files it under Bivalve taxonomy and Mollusc subclasses.
Its subject is documented across 23 Wikipedia language editions.
Species
古異歯亜綱
Subterclass
- PhylumMollusca
- ClassBivalvia
古異齒類(學名:Paleoheterodonta)[1],亦作古異齒亞綱、古異齒下綱或古異齒總目[2],是軟体動物門雙殼綱異齒亞綱之下的一個細分類[3]。 本亞綱的成員主要都是化石物種分類,但仍然有兩個現存的目,分別為在淡水生活的蚌目(Unionoida,又名石貝目或石蛤目)及在海洋生活的三角蛤目(Trigonioida)。兩者的兩邊殼皆相同形狀、相同大小,但其兩瓣殼間的鉸齒並沒有像異齒亞綱的成員物種那樣有主齒、側齒之分,而是只有一列[4]。 目录 1 分類 1.1 2010年及之後的分類 1.2 三角蛤目 1.3 蚌目 2 圖庫 3 參考文獻 4 外部連結 分類 古異齒類原為真瓣鰓目的分齒亞目(Schizodonta;在中國大陸又名裂齒亞目或裂齒目),原來包括蚌超科[5]和泥蜆超科兩個總科(泥蜆超科今屬簾蛤目的泥蜆亞目)[6]:45。 2010年及之後的分類 根據由 Bieler, Carter & Coan 在2010年發表的雙殼綱新分類系統,雙殼類分類經修訂後包括了古異齒類[7],當中包括下列的各個科與總科,而已滅絕的分類則標上 † 標記。這個分類到了2011年的修訂,被放到了異殼下綱(Infraclass Heteroconchia Hetwig, 1895)之下[8],因此現時一般改稱作「古異齒類」,又或採用作者提供的名字「蚌形類」。以下為根據BivAToL本分類的成員[9]: 三角蛤目 Trigonioida 三角蛤總科 Trigonioidea 三角蛤科 Trigoniidae:三角蛤 珠蚌目 Unionoida 珠蚌總科 Unionoidea 珠蚌科 Unionidae:蚌、無齒蚌族、短褶毛蚌、松毬貝等。 珍珠蚌科 Margaritiferidae:珍珠蚌等。 Etheria蛤上科 Etherioidea Etheria蛤科 Etheriidae Hyriidae Mutelidae = Iridinidae Mycetopodidae 目地位未定 Family Lyrodesmatidae P. Fischer, 1886 † Family Pseudarcidae Scarlato & Starobogatov, 1979 † Family Thoraliidae N. Morris, 1980 † 另外還有建議指三角蛤科物種還可以再細分。基本上三角蛤目除了還有兩個屬殘存到現代,其他的物種均已在白堊紀時滅絕。這個殘存到現在的物種屬於澳大利亞三角蛤屬(Neotrigonia,又譯作新三角蛤屬) 三角蛤目 三角蛤目(Trigonioida,又名石貝目,包括下列各個物種[10]: †Beichuanioidea Liu & Gu, 1988 †Beichuaniidae Liu & Gu, 1988 †大三角蛤總
via
Wikidata facts
- Instance of
- taxon
- Image
- Anodonta anatina1.jpg
Show 4 more facts
- Commons category
- Palaeoheterodonta
- taxon name
- Palaeoheterodonta
- topic's main category
- Category:Palaeoheterodonta
- taxon common name
- stare raznozobke
Sources (1)
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Encyclopedic overview
4 sectionsContents
- 2010 Taxonomy of the Palaeoheterodonta
- Order: [[Trigoniida]]
- Order: [[Unionida]]
- References
Palaeoheterodonta is a subterclass of bivalve molluscs. It contains the extant orders Unionida (freshwater mussels) and Trigoniida. They are distinguished by having the two halves of the shell be of equal size and shape, but by having the hinge teeth be in a single row, rather than separated into two groups, as they are in the clams and cockles.
==2010 Taxonomy of the Palaeoheterodonta== In 2010 a new proposed classification system for the Bivalvia was published in by Bieler, Carter & Coan revising the classification of the Bivalvia, including the subclass Paleoheterodonta. Superfamilies and families as listed by Bieler et al. Use of † indicate families and superfamilies that are extinct.
Excerpted from Wikipedia’s “Palaeoheterodonta” article, available under the CC BY-SA 4.0 licence.