小嘴貝目（學名：Rhynchonellida）為小嘴貝綱的一個目。



下級分類

本目包括以下科：


* Acanthothirididae

* Allorhynchidae

* Amphidellidae

* Amphipellidae

* Ancistorhynchidae

* Ancistrorhynchidae

* Antistrixidae

* Apodosiidae

* Araratellidae

* Aratellidae

* Aseptorhynchiidae

* Astraeleniidae

* Atriboniidae

* Austrirhynchidae

* Austrirhynchiidae

* Basiliolidae

* Camarotoechiidae

* Camerophorinidae

* Cardiarinidae

* Cardinirhynchiidae

* Chaniellidae

* Cryptoporidae

* Cryptoporiidae

* Cyclothyridae

* Cyclothyrididae

* Dimerellidae

* Dispheniidae

* Dogdoidae

* Eatoniidae

* Eoglossinotoechiidae

* Erymnariidae

* Eucharitinidae

* Eumetabolotoechiidae

* Frieleiidae

* Glossinotoechiidae

* Hadrorhynchiidae

* Halorellidae

* Hebetoechiidae

* Hemithirididae

* Hemithyrididae

* Hypothyridinidae

* Innaechiidae

* Jacoburbirostridae

* Jafarirhynchidae

* Katuniidae

* Ktenopotamorhynchidae

* Ladogiidae

* Lambdarinidae

* Lanceomyoniidae

* Leiorhynchidae

* Leptocoeliidae

* Machaerariidae

* Meduanarostridae

* Niorhynicidae

* Norellidae

* Notanopliidae

* Notosariidae

* Nucinulidae

* Obturamentellidae

* Ochotorhynchiidae

* Oligorhynchiidae

* Orthorhynchulidae

* Parallelepipedorhynchidae

* Paranorellidae

* Peregrinellidae

* Petasmariidae

* Petasmatheridae

* Phoenicitoechiidae

* Platyterorhynchidae

* Plectorhynchellidae

* Pontisiidae

* Praecyclothyrididae

* Prionorhynchiidae

* Psilocamaridae

* Pugnacidae

* 小嘴貝科 Pygmaellidae

* Rhynchonellidae

* Rhynchoporidae

* Rhynchotetradidae

* Rhynchotrematidae

* Rhynchotretiidae

* Rhynchotretradidae

* Rozmanariidae

* Salanygolinidae

* Sapphicorhynchidae

* Septalariidae

* Septirhynchiidae

* Sinorhynchiidae

* Sphenotretidae

* Stenoscismatidae

* Tethyrhynchiidae

* Tetracameridae

* Tetrarhynchiidae

* Triasorhynchiidae

* Trigonirhynchiidae

* Trigonorhynchiidae

* Uncinulidae

* Wellerellidae

* Yunnanellidae

* Zaigunrostridae

* Zhejiangellidae

科的地位未定的屬：


* _Aidynkulirhynchia_ Ovtsharenko, 1983

* _Ancistrorhynchia_

* _Antistrixia_

* _Aratella_

* _Bailongjiangella_ Fu, 1982

* _Begiarslania_ Titova, 1992

* _Beichuanrhynchus_ Chen Yuanren, 1990

* _Bergalarai_

* _Callaiaspida_

* _Camarotoechiodes_

* _Canavirila_ Sartenaer, 1994

* _Chathamirhynchia_ Lee & Motchurova-Dekova, 2008

* _Corrugatimediorostrum_ Sartenaer, 1970

* _Davinirhynchia_

* _Dichotomosella_ Tchoumatchenco, 1987

* _Discamella_ Trotter & Talent, 2005

* _Dorsisinus_ Easton et al., 1958

* _Dorsisinus_ Sanders, 1958

* _Dzhangirhynchia_

* _Ellassonia_

* _Erectocephalus_

* _Homeorhynchia_

* _Hypoleiorhynchus_ Linnik, 1976

* _Irgislella_

* _Kermanirhyncha_ Popov, Zaman, Baranov, Ghobadi Pour & Holmer, 2021

* _Ladogilinella_ Lyashenko, 1973

* _Ladogiodes_

* _Langkawai_

* _Laosia_ Mansuy, 1913

* _Leiorhynchoides_

* _Leptocaryorhyncus_

* _Linxiangxiella_ Yang, 1984

* _Machaerotoechia_

* _Makridinirhynchia_ Sucic-Protic, 1969

* _Mediterranirhynchia_ Sucic-Protic, 1969

* _Meglopterorhynchus_

* _Miaohuangrhynchus_ Yang, 1977

* _Microsphaeridiorhynchu_

* _Minutalirhynchia_

* _Omolonorhynchia_

* _Orbiculatisiurostrum_

* _Orthorhyncula_

* _Paratetratomia_ Yang, 1977

* _Paryphorhynchopora_

* _Payuella_ Grabau, 1934

* _Perakia_ Hamada, 1969

* _Physetorhynchia_

* _Platyglossariorhynchus_ Sartenaer, 1970

* _Pompoecilorhynchus_

* _Pontalorhynchia_

* _Praegnamtenia_

* _Praelacunosella_

* _Protodorsisinus_ Trotter & Talent, 2005

* _Protorhyncha_ Hall & Clarke, 1894

* _Pseudocamaratoechia_

* _Pseudocapillirhynchia_ Motchurova-Dekova, Radulovic & Metodiev, 2009

* _Pseudoglossirotoechia_

* _Pseudonudirostra_

* _Qilianotryma_ Xu, 1979

* _Qinlingotoechia_ Fu, 1983

* _Rhynchotetraoides_

* _Rionorhynchia_

* _Rostrirhynchia_ Sucic-Protic, 1969

* _Salairotoechia_ Rzhonsnitzkaya, 1968

* _Seminula_ M'Coy, 1844

* _Septemirostellum_ Roberts, 1971

* _Septocamarella_

* _Serbiarhynchia_

* _Sichuanrhynchis_

* _Slovenirhynchia_ Siblik, 1967

* _Stegerhynchops_

* _Sulciphoria_ Smirnova, 1992

* _Tainotoechia_

* _Tasmalella_

* _Tatjamoa_

* _Tungussotoechia_ Lopushinskaya, 1976

* _Uralotoechia_

* _Wairakiella_

* _Wulungguia_

* _Yanbianella_ Tong, 1978

* _Yukiangites_

* _Yunshanella_

* _Zanclorhyncha_



參考文獻