PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Orthotetida

Strophomenata - Orthotetida

Taxonomy

Orthotetida was named by Waagen (1884).

It was assigned to Strophomenata by Williams et al. (2000), Rubel (2011), Hints and Harper (2015).

Subtaxa

Orthotetidina, Triplesiidina

Synonymy list

Year	Name and author
1884	Orthotetida Waagen
2000	Orthotetida Williams et al. p. 644
2011	Orthotetida Rubel
2015	Orthotetida Hints and Harper

Is something missing? Join the Paleobiology Database and enter the data

Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
—	Lophophorata

Rank	Name	Author
—	Panbrachiopoda	Carlson and Cohen 2020
phylum	Brachiopoda	Cuvier 1805
subphylum	Rhynchonelliformea	Williams et al. 1996
class	Strophomenata	Williams et al 1996
order	Orthotetida	Waagen 1884
order	Orthotetida	Waagen 1884

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Or. †Orthotetida Waagen 1884

show all | hide all

Subor. †Orthotetidina Waagen 1884

hide

Superfm. †Chilidiopsoidea Boucot 1959

hide

Fm. †Areostrophiidae Manankov 1979

Subfm. †Adectorhynchinae Henry and Gordon 1985

G. †Adectorhynchus

G. †Drahanostrophia

G. †Eoschuchertella

G. †Floweria Cooper and Dutro 1982

G. †Guistrophia

Subfm. †Areostrophiinae Manankov 1979

G. †Aesopomum Havlicek 1965

G. †Areostrophia

G. †Carinastrophia Gratsianova 1975

Invalid names: Xenizostrophia [synonym]

G. †Imbriea Reily 2020

Invalid names: Orthopleura [replaced]

Fm. †Chilidiopsidae Boucot 1959

Subfm. †Chilidiopsinae Boucot 1959

G. †Hipparionix King

†Hipparionyx ereme Talent 1963

†Hipparionyx major Gill 1949

Invalid names: Hipparionyx ereme Talent 1963 [valid], Hipparionyx major Gill 1949 [valid]

G. †Iridistrophia Havlicek 1965

Invalid names: Hinganella Su 1980 [synonym], Magicostrophia [synonym]

G. †Kopella Nikitina et al. 2006

G. †Morinorhynchus Havlicek 1965

Invalid names: Fardeniinae Williams 1951 [synonym]

G. †Fardenia Lamont 1935

Subg. †Fardenia (Coolinia) Bancroft 1949

Invalid names: Chilidiopsis [synonym], Krizistrophia [synonym]

Subg. †Fardenia (Fardenia) Lamont 1935

†Fardenia comes Marek and Havlíček 1967

†Fardenia costatula Cooper and Kindle 1936

†Fardenia filistriata Boucot et al. 1972

†Fardenia flabellata Beznosova 1985

†Fardenia gwaliae Cocks 2014

†Fardenia modica Rong and Li 1999

†Fardenia oblectator Baarli 1995

†Fardenia scalena Williams 1962

†Fardenia scotica Lamont 1935

†Fardenia transversalis Stearn 1956

Subfm. †Gacellinae Williams et al. 2000

G. †Gacella Williams 1962

G. †Saughina Bancroft 1949

†Saughina pertinax Reed 1917

G. †Valdaria Bassett and Cocks 1974

†Valdaria testudo Bassett and Cocks 1974

G. †Xystostrophia Havlicek 1965

†Xystostrophia umbraculum von Schlotheim 1820

†Xystostrophia woolworthana Hall 1857

Invalid names: Apicilirella [synonym]

Fm. †Eocramatiidae Williams 1974

G. †Eocramatia

G. †Neocramatia

Superfm. †Orthotetoidea Waagen 1884

hide

Fm. †Derbyiidae Stehli 1954

G. †Derbyia Waagen 1884

†Derbya bennetti Hall and Clarke 1892

†Derbya cymbula Hall and Clarke 1892

†Derbya keokuk Hall 1858

†Derbya robusta Hall 1858

†Derbyia achengensis Lee and Gu 1980

†Derbyia acutangula Huang 1933

Invalid names: Derbyia guangdongensis Ni 1977 [synonym], Derbyia mucronata Liao 1980 [synonym]

†Derbyia acutiplicata Metz 1936

†Derbyia altestriata Waagen 1884

†Derbyia arellanoi Cooper 1953

†Derbyia arizonensis McKee 1941

Invalid names: Derbyia regularis McKee 1938 [replaced]

†Derbyia auriplexa Hoover 1981

†Derbyia baroghilensis Reed 1925

†Derbyia bella Cooper and Grant 1974

†Derbyia bilobata Jin and Shi 1985

†Derbyia buchi d'Orbigny 1842

Invalid names: Productus andii d'Orbigny 1842 [synonym]

†Derbyia buriensis Reed 1944

†Derbyia carteri Cooper and Grant 1974

†Derbyia cincinnata Cooper and Grant 1974

†Derbyia complicata Cooper and Grant 1974

†Derbyia crassa Meek and Hayden 1858

Invalid names: Orthisina umbraculum Swallow 1858 [synonym]

†Derbyia crenulata Girty 1909

†Derbyia cymbula Hall and Clarke 1893

†Derbyia daliangensis Lee and Gu 1980

†Derbyia deltauriculata Hoover 1981

†Derbyia dirata Grant 1993

†Derbyia diversa Reed 1944

†Derbyia dorsoplana Diener 1915

†Derbyia dorsosulcata Liu and Waterhouse 1985

†Derbyia duomaensis Sun 1983

†Derbyia dupliciseptata Grabau 1931

†Derbyia elevata King 1931

†Derbyia elongata Cooper 1953

†Derbyia expansa Schellwien 1892

†Derbyia exserta Sun 1983

†Derbyia filosa Cooper and Grant 1974

†Derbyia gigantea Kalashnikov 1993

†Derbyia grandis Waagen 1884

†Derbyia guidingensis Shen and He 1994

†Derbyia hardmani Thomas 1958

†Derbyia haroubi Angiolini 1997

†Derbyia hemisphaerica Waagen 1884

†Derbyia hooserensis Dunbar and Condra 1932

†Derbyia incurva Abich 1878

†Derbyia informis Cooper and Grant 1974

†Derbyia laqueata Cooper and Grant 1974

†Derbyia lotanggangensis Liang 1982

†Derbyia magnus Branson 1930

†Derbyia metzi Gauri 1965

†Derbyia mongolica Grabau 1931

†Derbyia multicostellatus Gauri 1965

†Derbyia mutabilis Liao 1980

†Derbyia nasuta Girty 1909

†Derbyia nigpi Chen and Liao 2007

†Derbyia nipponica Nakamura 1972

†Derbyia otoeis Lee and Gu 1980

†Derbyia pannucia Cooper and Grant 1974

†Derbyia pannuciella Xu and Grant 1994

†Derbyia pararegularis Lee and Gu 1980

†Derbyia parasitica Kozlowski 1914

†Derbyia perplexus Waterhouse 1981

†Derbyia plicatella Waagen 1884

†Derbyia postplicatella Waterhouse and Gupta 1983

†Derbyia profunda Cooper and Grant 1974

†Derbyia regis Grant 1995

†Derbyia regularis Waagen 1884

Invalid names: Orthotetes fascicostata Liang 1990 [synonym]

†Derbyia rudicula Liang 1990

†Derbyia sakamotozawensis Shintani 2011

†Derbyia schellwieni Frech 1911

Invalid names: Derbyia disalata Liao 1980 [synonym], Derbyia yangtzeensis Jin and Hu 1978 [synonym]

†Derbyia scitula Cooper and Grant 1974

†Derbyia scobina Grant 1976

†Derbyia senbaensis Jin and Shi 1985

†Derbyia simplicis Lee and Gu 1980

†Derbyia speciosa Yang 1984

†Derbyia striolata Lee and Gu 1980

†Derbyia strophomenoidea Cooper and Grant 1974

†Derbyia subaurita Reed 1944

†Derbyia subsinuata Reed 1944

†Derbyia sulca Branson 1930

†Derbyia sulcata Walter 1953

†Derbyia sultanensis Reed 1944

†Derbyia texta Cooper and Grant 1974

†Derbyia vercherei Waagen 1884

†Derbyia waageni Schellwien 1892

†Derbyia wabaunseensis Dunbar and Condra 1932

†Derbyia yeerqiangensis Chen and Shi 2006

†Derbyia yongjiensis Lee and Gu 1980

†Derbyia yukisawensis Tazawa and Shintani 2014

Invalid names: Paraderbyia Sun 1983 [synonym], Plicatoderbyia Thomas 1937 [synonym], Pseudoderbyia Likharev 1934 [synonym], Wardakia Termier et al. 1974 [synonym]

G. †Diplanus Stehli 1954

†Diplanus apochordus Cooper and Grant 1974

†Diplanus catatonus Cooper and Grant 1974

†Diplanus dilatus Grant 1995

†Diplanus lamellatus King 1931

†Diplanus rarus Cooper and Grant 1974

†Diplanus redactus Cooper and Grant 1974

†Diplanus stanleyi Watkins 1974

G. †Dorsoscyphus

†Dorsoscyphus johnsoni Watkins 1974

G. †Nothopindax Cooper and Grant 1974

†Nothopindax egregius Cooper and Grant 1974

G. †Streptopomum

Invalid names: Miniplanus Waterhouse and Piyasin 1970 [synonym]

Fm. †Meekellidae Stehli 1954

Subfm. †Meekellinae Stehli 1954

G. †Alatorthotetina He and Zhu 1985

G. †Geyerella Schellwien 1900

Invalid names: Turriculum de Gregorio 1930 [synonym]

G. †Meekella

Invalid names: Asiomeekella Liang 1990 [synonym], Gegenella [synonym], Parameekella He and Zhu 1985 [synonym]

G. †Meekellogeyerella Shen and Shi 2007

G. †Niviconia Cooper and Grant 1974

G. †Orthothetina Schellwien 1900

Invalid names: Lopingia Zhan 1979 [synonym]

G. †Paraorthotetina He and Zhu 1985

G. †Perigeyerella

G. †Sicelia Gortani and Merla 1934

Subfm. †Omboniinae Sokolskaya 1960

G. †Ombonia Caneva 1906

Fm. †Orthotetellidae Cooper and Grant 1974

G. †Hypopsia Cooper and Grant 1974

†Hypopsia versuta Cooper and Grant 1974

G. †Orthotetella King 1931

†Orthotetella wolfcampensis King 1931

Fm. †Orthotetidae Waagen 1884

G. †Apsocalymma

†Apsocalymma shiellsi McIntosh 1974

G. †Brochocarina

†Brochocarina trearnensis McIntosh 1974

†Brochocarina wexfordensis Brunton 1968

G. †Derbyoides

†Derbyoides cassidula Liang 1990

Invalid names: Liberella elegans Liang 1990 [synonym]

†Derbyoides dunbari Cooper and Grant 1974

†Derbyoides lamella Liang 1990

†Derbyoides marathonensis Cooper and Grant 1974

G. †Hipparionix King

†Hipparionyx ereme Talent 1963

†Hipparionyx major Gill 1949

Invalid names: Hipparionyx ereme Talent 1963 [valid], Hipparionyx major Gill 1949 [valid]

G. †Orthotetes

†Orthotetes abruptus Liang 1990

†Orthotetes afanasjevae Manankov 2004

†Orthotetes bisulcatus Waterhouse 1966

†Orthotetes canadensis Shi and Waterhouse 1996

†Orthotetes guppyi Thomas 1958

†Orthotetes huagongensis Liao 1979

†Orthotetes jugorica Ustritsky 1960

†Orthotetes kaskaskiensis McChesney 1860

†Orthotetes keokuk Hall 1858

†Orthotetes kraffti Diener 1903

†Orthotetes occidentalis Lane 1963

†Orthotetes picta Fang 1983

†Orthotetes plana Ivanov 1926

†Orthotetes simensis Tschernyschew 1902

†Orthotetes sulcus Branson 1930

†Orthotetes sulensis Kalashnikov 1993

†Orthotetes trigonalis Lee and Gu 1980

†Orthothetes crenistria Phillips 1836

Invalid names: Orthotetoides [synonym], Pseudoorthotetes [synonym]

G. †Tapajotia

†Tapajotia tapajotensis Derby 1874

G. †Werriea

†Werriea australis Campbell 1957

Invalid names: Permorthotetes Thomas 1958 [synonym]

Fm. †Pulsiidae Cooper and Grant 1974

G. †Pulsia

†Pulsia linguaeformis Gauri 1965

†Pulsia mosquensis Ivanov 1926

G. †Schellwienella

†Schellwienella alternata Weller 1914

†Schellwienella burlingtonensis Weller 1914

†Schellwienella chouteauensis Weller 1914

†Schellwienella crenistria McIntosh 1974

†Schellwienella crenulicostata Weller 1914

†Schellwienella inaequalis Hall 1858

†Schellwienella inflata White and Whitfield 1862

†Schellwienella marcidula Amsden 1958

†Schellwienella planumbona Weller 1914

†Schellwienella radialis Brunton 1968

†Schellwienella regina Grabau 1931

†Schellwienella rotunda Thomas 1910

†Schellwienella scotica McIntosh 1974

†Schellwienella senilis Phillips 1836

†Schellwienella umbonata Easton et al. 1958

Fm. †Schuchertellidae Williams 1953

Subfm. †Schuchertellinae Williams 1953

G. †Goniarina Cooper and Grant 1969

G. †Schuchertella Girty 1904

G. †Schuchertellopsis

G. †Serratocrista Brunton 1968

G. †Teserina Posenato 2011

Subfm. †Streptorhynchinae Stehli 1954

G. †Arcitreta Whitfield

G. †Arctitreta Whitfield 1908

Invalid names: Grumantia Ustritsky 1963 [synonym]

G. †Bothrostegium Cooper and Grant 1974

G. †Chelononia Cooper and Grant 1974

G. †Drahanorhynchus

G. †Kiangsiella Chao 1927

G. †Notostrophia Waterhouse 1973

G. †Pseudostreptorhynchus Shen and Shi 2007

G. †Streptorhynchus King 1850

G. †Taimyropsis Ustritsky 1963

G. †Tropidelasma Cooper and Grant 1969

Invalid names: Erismatina Waterhouse 1983 [synonym], Parageyerella He and Zhu 1985 [synonym]

Subor. †Triplesiidina Moore 1952

hide

Superfm. †Triplesioidea Schuchert 1913

hide

Fm. †Triplesiidae Schuchert 1913

G. †Acaretyrricula Jin and Chatterton 1997

†Acaretyrricula tenuiguttae Jin and Chatterton 1997

G. †Amphiplecia Wright and Jaanusson 1993

†Amphiplecia bondarevi Cocks and Modzalevskaya 1997

†Amphiplecia depressa Wright and Jaanusson 1993

†Amphiplecia tardicostata Wright and Jaanusson 1993

G. †Bicuspina Havlicek 1950

†Bicuspina multicostellata Havlicek 1951

†Bicuspina subquadrata Williams 1974

G. †Brachymimulus

G. †Caeroplecia Williams 1974

†Caeroplecia plicata Williams 1974

G. †Cliftonia Foerste 1909

Subg. †Cliftonia (Cliftonia) Foerste 1909

†Cliftonia lamellosa Williams 1951

†Cliftonia obovata Chang 1981

†Cliftonia oxoplecioides Wright 1963

†Cliftonia psittacina Wahlenberg 1821

†Cliftonia striata Foerste 1909

†Cliftonia tubulistriata Savage 1913

G. †Craigella

†Craigella grayiae Davidson 1870

Invalid names: Epacroplecia Williams 1962 [synonym], Nucleorhynchia [synonym]

G. †Grammoplecia Wright and Jaanusson 1993

†Grammoplecia subcraegensis Rukavishnikova 1956

†Grammoplecia triplesioides Wright and Jaanusson 1993

†Grammoplecia wrighti Popov et al. 2002

G. †Ogmoplecia Wright and Jaanusson 1993

†Ogmoplecia nesca Popov and Cocks 2006

†Ogmoplecia plicata Wiman 1907

G. †Onychoplecia Cooper 1956

†Onychoplecia brevirostris Cooper 1956

†Onychoplecia gracilis Raymond 1902

†Onychoplecia kindlei Cooper 1956

†Onychoplecia longirostris Billings 1859

†Onychoplecia matutina Cooper 1956

†Onychoplecia obesa Cooper 1956

†Onychoplecia schmidti Rõõmusoks 1964

†Onychoplecia tenuis Cooper 1956

G. †Onychotreta Ulrich and Cooper 1936

†Onychotreta mesleri Ulrich and Cooper 1936

Invalid names: Eilotreta [synonym], Lissotreta [synonym]

G. †Oxoplecia Wilson 1913

†Oxoplecia abnormis Cooper 1956

†Oxoplecia andersoni Reed 1917

†Oxoplecia calhouni Wilson 1913

†Oxoplecia cooperi Wright 1964

†Oxoplecia costellata Cooper 1956

†Oxoplecia holstonensis Willard 1928

†Oxoplecia monitorensis Cooper 1956

†Oxoplecia multicostellata Cooper 1956

†Oxoplecia plicata Wiman 1907

†Oxoplecia subborealis Davidson 1883

†Oxoplecia ujukensis Andreeva 1982

G. †Paraonychoplecia Percival 1991

†Paraonychoplecia inversa Percival 1991

G. †Placotriplesia

†Placotriplesia spissa Popov et al. 2002

G. †Plectotreta Ulrich and Cooper 1936

†Plectotreta lindstroemi Ulrich and Cooper 1936

G. †Streptis Davidson 1881

†Streptis altosinuata Holtedahl 1916

†Streptis grayii Davidson 1848

†Streptis monilifera M'Coy 1846

†Streptis undifera Ulrich and Cooper 1936

G. †Triplesia Hall 1859

†Triplesia calcifera Billings 1861

†Triplesia carinata Cooper 1956

†Triplesia craigensis Reed 1917

†Triplesia edgelliana Davidson 1869

†Triplesia eospiriferoides Havlicek and Storch 1990

†Triplesia extans Emmons 1842

†Triplesia girvanensis Cocks 2008

†Triplesia hintsae Cocks 2014

†Triplesia iberica Villas 1985

†Triplesia insularis Eichwald 1843

†Triplesia maennili Rubel 1963

†Triplesia monilifera M'Coy 1846

†Triplesia sortanensis Nikitin and Popov 1996

†Triplesia subcarinata Cooper 1956

†Triplesia woodlandensis Reed 1917

†Triplesia yichangensis Zeng 1977

†Triplesia zhejiangensis Liang 1983

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

low Mg calcitep

Environment:

marineuc

Locomotion:

stationaryp

Attached:

yesp

Life habit:

low-level epifaunalp

Diet:

suspension feederp

Vision:

blindc

Created:

2010-02-15 05:25:57

Modified:

2010-02-15 07:25:57

Source: c = class, p = phylum, uc = unranked clade

References: Nesnidal et al. 2013, Aberhan et al. 2004

Age range: base of the Rangerian to the top of the Griesbachian or 471.30000 to 250.50000 Ma

Collections (5565 total)

Time interval	Ma	Country or state	Original ID and collection number
Oldest occurrences
Ordovician	486.85 - 443.1	USA (New York)	Triplesia sp. (332)
Rangerian	471.3 - 470.3	USA (Nevada)	Onychoplecia sp. (80059)
Chazyan	471.3 - 457.3	Canada (Newfoundland and Labrador)	Onychoplecia kindlei (104861)
Chazyan	471.3 - 457.3	USA (Virginia)	Oxoplecia costellata (186183)
Chazyan	471.3 - 457.3	USA (Alabama)	Triplesia carinata (162364)
Chazyan	471.3 - 457.3	USA (Vermont)	Onychoplecia gracilis (186174)
Chazyan	471.3 - 457.3	Canada (Quebec)	Onychoplecia sp. (307 311)
Chazyan	471.3 - 457.3	USA (New York)	Camerella longirostris (42808 56184 56185 56212 56214 171705 171707 171711 171798 172171 172187 172221 172227 172233 172236 172238 172246 172294 172296 172302 172303 172304 172307 172309 172310 172313 172318 172321 172323 172326 172328 172330 172331 172332 172342 172346 172348) Onychoplecia gracilis (164475)
Chazyan	471.3 - 457.3	Canada (Northwest Territories)	Onychoplecia sp. (315) Triplesia sp. (314)
Chazyan	471.3 - 457.3	USA (Tennessee)	Onychoplecia brevirostris (204097) Onychoplecia longirostris (222075) Onychoplecia sp. (308) Oxoplecia holstonensis (186185 186186 219793)
Youngest occurrences
Time interval	Ma	Country or state	PBDB collection number
Changhsingian	254.14 - 251.902	Malaysia (Pahang)	Derbyia sp., Meekellidae indet. (206773)
Changhsingian	254.14 - 251.902	China (Guangxi)	Derbyia acutangula, Orthothetina ruber, Meekella kueichowensis, Orthothetina regularis (138533) Derbyia schellwieni (138540 138541) Derbyia sp., Schuchertella fushuiensis (97022) Derbyia sp., Streptorhynchus sp. (50024) Geyerella sp., Meekella sp., Orthothetina frechi (149207) Geyerella sp., Schellwienella sp., Orthothetina ruber (149218) Goniarina sp. (95331 162518) Leptochondria intermedia (95336) Meekella arakeljani (112433) Meekella arakeljani, Meekella kueichowensis, Orthothetina regularis (138525) Meekella dongluoensis, Perigeyerella guangxiensis, Tropidelasma elongata (97023) Meekella kueichowensis, Streptorhynchus tenuiplicatus, Derbyia schellwieni (138535) Meekella sp., Meekella kueichowensis (107298) Meekella sp., Orthotetidae indet., Orthothetina ruber, Orthothetina regularis (206152) Meekella sp., Orthothetina sp., Orthotetidae indet., Orthothetina ruber, Orthothetina regularis, Tropidelasma zhongliangshanensis (206156) Meekella sp., Streptorhynchus sp., Orthotetidae indet., Orthothetina ruber, Orthothetina regularis (206105) Orthothetina regularis (138527) Orthothetina ruber (117510) Orthothetina ruber, Meekella kueichowensis (138532) Orthothetina ruber, Meekella kueichowensis, Derbyia schellwieni (138534) Orthothetina ruber, Meekella kueichowensis, Orthothetina frechi (149204) Orthothetina ruber, Orthothetina frechi (149206) Orthothetina ruber, Orthothetina regularis (138526) Orthothetina sp. (149209) Orthothetina sp., Meekella dongluoensis, Ombonia capilla, Derbyia nigpi, Schuchertella fushuiensis, Streptorhynchus ovata, Tropidelasma elongata (74731) Perigeyerella costellata, Streptorhynchus tenuiplicatus (138538) Perigeyerella guangxiensis (97021) Perigeyerella guangxiensis, Schuchertella fushuiensis (97020) Streptorhynchus pelargonatus, Orthothetina ruber (149205) Streptorhynchus pendulus (112400) Streptorhynchus sp., Perigeyerella costellata (112431)
Changhsingian	254.14 - 251.902	China (Chongqing)	Alatorthotetina speciosa (156847) Derbyia acutangula (138466) Derbyia acutangula, Meekella beipeiensis, Tropidelasma triangularis (138455) Derbyia acutangula, Orthothetina ruber, Meekella kueichowensis, Orthothetina frechi (138456) Derbyia acutangula, Orthothetina ruber, Orthothetina regularis (138389) Derbyia guangdongensis, Orthothetina eusarkos, Derbyia schellwieni (94968) Derbyia schellwieni (148544) Derbyia sp. 2, Perigeyerella tricosa, Perigeyerella costellata, Meekella beipeiensis, Tropidelasma zhongliangshanensis, Perigeyerella obesa, Tropidelasma triangularis (138387) Derbyia sp., Meekella kueichowensis, Meekella deltoides (148548) Derbyia sp., Orthothetina sp., Meekella kueichowensis, Perigeyerella costellata (156863) Kiangsiella sp. (149280) Meekella arakeljani, Derbyia acutangula, Orthothetina ruber, Meekella kueichowensis, Perigeyerella costellata, Meekella beipeiensis, Meekella deltoides, Perigeyerella obesa (138386) Meekella arakeljani, Orthothetina regularis, Meekella beipeiensis (138454) Meekella beipeiensis, Perigeyerella fastigiata (138388) Meekella kueichowensis (148549 156848 156855) Meekella sichuanensis, Derbyia acutangula, Orthothetina ruber, Tropidelasma zhongliangshanensis (94985) Meekella sp. (94980 148550 156880) Meekella sp., Meekella kueichowensis, Orthothetina frechi (149259) Meekella sp., Orthothetina regularis (94987) Meekella sp., Perigeyerella costellata (156882) Orthothetina frechi (138465) Orthothetina regularis (90373 138450 138451 138464) Orthothetina regularis, Tropidelasma zhongliangshanensis (138488) Orthothetina ruber (90372 94971 138459 138461 138462 138486 138487 149276 156846 156857) Orthothetina ruber, Derbyia guangdongensis, Orthothetina eusarkos (94966) Orthothetina ruber, Derbyia guangdongensis, Orthothetina eusarkos, Derbyia schellwieni (94967) Orthothetina ruber, Meekella dorsisulcata (94977) Orthothetina ruber, Orthothetina frechi (138458) Orthothetina ruber, Orthothetina regularis (138457 138460 138485) Orthothetina ruber, Orthothetina regularis, Meekella eximia, Pseudostreptorhynchus deflecta (94978) Orthothetina ruber, Orthothetina regularis, Pseudostreptorhynchus deflecta, Meekella sp. (94969) Orthothetina ruber, Perigeyerella costellata, Orthothetina regularis, Orthothetina shuangtangensis, Tropidelasma triangularis (138390) Orthothetina sp. (94964 148541 149258 149260 149261 156849) Orthothetina sp., Derbyia schellwieni (148554) Orthothetina sp., Meekella deltoides (148543) Orthothetina sp., Streptorhynchus pelargonatus (156885) Parageyerella zhongliangshanensis (126979) Perigeyerella costellata (138489 156861 156862) Perigeyerella sp., Derbyia dirata, Streptorhynchus pelargonatus, Meekella arakeljani, Orthothetina ellipsoides, Orthothetina exquisita, Orthothetina rara, Meekella sichuanensis, Meekella perigeyerelloides, Derbyia acutangula, Derbyia yangtzeensis, Perigeyerella costellata, Meekella dorsisulcata, Orthothetina regularis, Perigeyerella fastigiata, Orthothetina shuangtangensis, Meekella deltoides, Tropidelasma zhongliangshanensis, Streptorhynchus longyangensis, Orthothetina planoconvexa, Meekella versiformis, Tropidelasma triangularis (94984) Perigeyerella sp., Meekella deltoides (94986) Perigeyerella sp., Orthothetina ruber (156883) Schellwienella sp. (149275 149277 149279 149282) Schellwienella sp., Perigeyerella costellata (149281) Schuchertella semiplana, Orthothetina regularis (138463) Schuchertella semiplana, Orthothetina ruber, Orthothetina regularis (138391) Streptorhynchus pelargonatus (138490) Streptorhynchus sp. (94972)
Changhsingian	254.14 - 251.902	China (Guangdong)	Meekella sp., Lopingia ruber, Magniderbyia lata (95679)
Changhsingian	254.14 - 251.902	Vietnam	Derbyia sp., Schuchertella cooperi (42910)
Changhsingian	254.14 - 251.902	Italy	Ombonia canevai, Schuchertella sp. (105122) Ombonia sp. (44450) Ombonia sp., Orthothetina sp. (74938 116441) Ombonia sp., Schuchertella sp. (74939) Ombonia tirolensis (87192 101910 101912 101926) Ombonia tirolensis, Streptorhynchus sp. (101919 101920) Orthothetina ladina (101909) Orthothetina ladina, Ombonia tirolensis (87191 101908 101911 101913 101915 101933 101934 101935) Streptorhynchus sp. (101917 101918)
Changhsingian - Griesbachian	254.14 - 250.5	India (Kashmir)	Derbyia sp. (50044) Derbyia sp., Schellwienella sp. (48913)
Griesbachian	251.902 - 250.5	India (Kashmir)	Derbyia sp. (214661)
Griesbachian	251.902 - 250.5	China (Guizhou)	Perigeyerella sp. (151148)
Griesbachian	251.902 - 250.5	China (Zhejiang)	Derbyia sp. (43788)