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Lacunaerhynchia
Taxonomy
Lacunaerhynchia was named by Almeras (1966) [Sepkoski's age data: J Bajo-u Sepkoski's reference number: 1027]. It is not extant.
It was assigned to Cyclothyridinae by Williams et al. (2002); and to Rhynchonellida by Sepkoski (2002).
It was assigned to Cyclothyridinae by Williams et al. (2002); and to Rhynchonellida by Sepkoski (2002).
Species
Species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1966 | Lacunaerhynchia Almeras p. 97 |
| 1976 | Nyalamurhynchia Jin et al. p. 300 |
| 2002 | Lacunaerhynchia Sepkoski |
| 2002 | Nyalamurhynchia Sepkoski |
| 2002 | Septulirhynchia Sepkoski |
| 2002 | Lacunaerhynchia Williams et al. p. 1331 |
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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. †Lacunaerhynchia Almeras 1966
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†Lacunaerhynchia buckmani Rollier 1918
†Lacunaerhynchia palma Szajnocha 1879
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Invalid names: Rhynchonella subtilis Szajnocha 1879 [synonym]
†Lacunaerhynchia palmaeformis Lissajous 1936
†Lacunaerhynchia vergissonensis Almeras 1966
Invalid names: Nyalamurhynchia Jin et al. 1976 [synonym], Septulirhynchia [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| height | 13 | 11.0 | 6.10 | 14.0 | 12.0 | 2.20 | |
| shell height | 1 | 4.04 | - | - | - | - | |
| valve height | 2 | 9.50 | 7.40 | 12.2 | 9.80 | 3.39 |
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: base of the Aalenian to the top of the Early/Lower Callovian or 174.70000 to 161.50000 Ma
Collections (23 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Aalenian | United Kingdom (Somerset) | L. buckmani (159883) | |
| Early/Lower Bajocian | France | Rhynchonella palmaeformis (169986) | |
| Early/Lower Bajocian | France (Bourgogne) | L. gauthieri, Septulirhynchia davidi, L. vergissonensis (93349) L. vergissonensis (93297) Rhynchonella palmaeformis, Septulirhynchia davidi, L. vergissonensis (93296) Septulirhynchia davidi (93300) | |
| Humphresianum | France | Rhynchonella palmaeformis (169238) | |
| Bajocian | France | L. sp., Septulirhynchia sp. (34714) L. vergissonensis (12010) | |
| Bajocian | China (Xizang) | Nyalamurhynchia mirifica (110218 110219) | |
| Late/Upper Bajocian | France | L. palmaeformis (159790) Rhynchonella palmaeformis (169973 170160) Septulirhynchia davidi (169954) | |
| Early/Lower Bathonian | France | L. subacarus (12018 12097 12150) | |
| Late/Upper Bathonian | Hungary | L. palma (92056) | |
| Late/Upper Bathonian | France | L. palma (159912) | |
| Late/Upper Bathonian | United Kingdom (Wiltshire) | L. palma (135486) | |
| Late/Upper Bathonian - Early/Lower Callovian | Poland | Rhynchonella palma (159911) | |
| Early/Lower Callovian | Algeria | Rhynchonella palma (60021) |