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Rhactorhynchia
Taxonomy
Rhactorhynchia was named by Buckman (1917) [Sepkoski's age data: J Aale J Tith Sepkoski's reference number: 1,538,868].
It was assigned to Kallirhynchiinae by Williams et al. (2002); and to Rhynchonellida by Sepkoski (2002).
It was assigned to Kallirhynchiinae by Williams et al. (2002); and to Rhynchonellida by Sepkoski (2002).
Species
R. albertensis, R. borissjaki, R. brevis, R. diffusa, R. distracta, R. grigorievi, R. gurovi, R. hampenensis, R. humilis, R. impar, R. lauta, R. lutugini, R. oscolica, R. pinguis, R. quadriplicata, R. regalis, R. rhacta, R. subquadriplicata, R. subtetrahedra, R. termieri, R. trigona, R. tumefacta, R. turgidula, R. voluta
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1917 | Rhactorhynchia Buckman p. 50 |
| 2002 | Rhactorhynchia Sepkoski |
| 2002 | Rhactorhynchia Williams et al. p. 1359 |
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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.
G. †Rhactorhynchia Buckman 1917
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†Rhactorhynchia albertensis Warren 1932
†Rhactorhynchia borissjaki Makridin 1964
†Rhactorhynchia brevis Buckman 1917
†Rhactorhynchia diffusa Buckman 1917
†Rhactorhynchia distracta Waagen 1867
†Rhactorhynchia grigorievi Makridin 1964
†Rhactorhynchia gurovi Makridin 1964
†Rhactorhynchia hampenensis Buckman 1886
†Rhactorhynchia humilis Buckman 1917
†Rhactorhynchia impar Buckman 1917
†Rhactorhynchia lauta Jin et al. 1976
†Rhactorhynchia lutugini Nalivkin 1910
†Rhactorhynchia oscolica Makridin 1952
†Rhactorhynchia pinguis Roemer 1836
†Rhactorhynchia pinguis ukrainica Makridin 1952
†Rhactorhynchia quadriplicata Nalivkin 1910
†Rhactorhynchia regalis Buckman 1917
†Rhactorhynchia rhacta Buckman 1917
†Rhactorhynchia subquadriplicata Kamyshan 1973
†Rhactorhynchia subtetrahedra Davidson 1851
†Rhactorhynchia termieri Rousselle 1965
†Rhactorhynchia trigona Crickmay 1933
†Rhactorhynchia tumefacta Buckman 1917
†Rhactorhynchia turgidula Buckman 1917
†Rhactorhynchia voluta Richardson and Walker 1907
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| height | 20 | 16.1 | 13.2 | 20.0 | 15.6 | 2.23 | |
| shell height | 21 | 12.2 | 7.50 | 23.5 | 10.5 | 4.75 |
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Collections (42 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Pliensbachian - Toarcian | Chile (Atacama) | R. sp. (221834) | |
| Toarcian - Early/Lower Aalenian | Bulgaria | R. sp. (106913) | |
| Concavum | Russian Federation | R. humilis (162871) | |
| Murchisonae | United Kingdom | Cymatorhynchia humilis (171139) | |
| Early/Lower Bajocian | United Kingdom | R. brevis (171005) | |
| Early/Lower Bajocian | Russian Federation | R. brevis (162843) R. distracta (162864) R. humilis (162868) | |
| Humphresianum | Russian Federation | R. subtetrahedra (162849) | |
| Bajocian | China (Xizang) | R. lauta (110219) | |
| Bajocian | France | Kallirhynchia hampenensis (12010) R. voluta (170618) | |
| Discites | USA (California) | R. trigona (164660) | |
| Discites | Russian Federation | R. humilis, R. distracta (162845) | |
| Garantiana | United Kingdom (England) | R. diffusa (171011) | |
| Garantiana | United Kingdom (Somerset) | R. impar (171012) | |
| Parkinsoni | France | R. rochei, R. turgidula, R. tumefacta (169853) R. tumefacta (169987) | |
| Parkinsoni | United Kingdom (Somerset) | R. subtetrahedra (159952) | |
| Sauzei | Russian Federation | R. rhacta, R. subquadriplicata (162852) R. subquadriplicata (162869 162928) R. subtetrahedra, R. rhacta, R. distracta, R. subquadriplicata, R. brevis (162851) | |
| Late/Upper Bajocian | United Kingdom (Gloucestershire) | R. hampenensis (159943 159947) R. subtetrahedra (159949) R. tumefacta (159955 159957) R. turgidula (159767 159954) | |
| Late/Upper Bajocian | United Kingdom (Somerset) | Rhynchonella subtetrahedra, R. rhacta (159948) | |
| Late/Upper Bajocian | Germany | R. subtetrahedra (159950) | |
| Late/Upper Bajocian | United Kingdom | R. hampenensis (159944 159945 159946) R. subtetrahedra (159951) R. tumefacta (159956) R. turgidula (159953) Rhynchonella hampenensis (159942) | |
| Late/Upper Bajocian | France | Kallirhynchia hampenensis (170549) | |
| Bathonian | Egypt | R. pinguis (157871) | |
| Callovian | Somalia | R. paolii (92997) |