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Praeexogyra

Bivalvia - Ostreida - Gryphaeidae

Taxonomy
Praeexogyra was named by Charles (1952) [Sepkoski's age data: J Bajo-u K Berr-l Sepkoski's reference number: 92]. It is not extant. Its type is Ostrea (Liostrea) acuminata.

It was assigned to Gryphaeinae by Vokes (1980); to Ostreidae by Kelly (1984); and to Pterioida by Sepkoski (2002).

Synonymy list
YearName and author
1952Praeexogyra Charles
1980Praeexogyra Vokes p. 63
1984Praeexogyra Kelly p. 54
2002Praeexogyra Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
—Eubivalvia
subclassAutobranchia(Groblen 1894)
infraclassPteriomorphia(Beurlen 1944)
RankNameAuthor
—OstreomorphiFerussac 1822
—OstreioniFerussac 1822
—OstreataFerussac 1822
superorderOstreiformiiFerussac 1822
orderOstreida(Fërussac 1822)
suborderOstreidina(Ferussac 1822)
superfamilyOstreoidea(Rafinesque 1815)
familyGryphaeidaeVialov 1936
subfamilyGryphaeinaeVialov 1936
genusPraeexogyraCharles 1952

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. †Praeexogyra Charles 1952
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†Praeexogyra acuminata Sowerby 1816
†Praeexogyra dubiensis Contejean 1859
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Invalid names: Ostrea (Liostrea) dubiensis Contejean 1935 [synonym], Ostrea exogyroides Roemer 1835 [synonym]
†Praeexogyra monsbeliardensis Contejean 1859
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitef
Environment: marine, brackisho
Locomotion: stationaryf
Attached: yesf
Life habit: epifaunalf
Diet: suspension feederf
Vision: blindc
Created: 2007-09-26 08:05:58
Modified: 2009-08-18 19:34:53
Source: f = family, o = order, c = class
References: Kiessling 2004, Steuber 2002, Aberhan et al. 2004

Age range: base of the Early/Lower Bajocian to the top of the Priabonian or 171.60000 to 33.90000 Ma

Collections (121 total)


Time interval Ma Country or state Original ID and collection number
Middle Jurassic174.7 - 161.5United Kingdom (Gloucestershire) Ostrea acuminata (204057 204058 204061 204062 204063 204064 204067 204099 204100)
Early/Lower Bajocian171.6 - 168.4United Kingdom (England) P. sp. (38382)
Late/Upper Bajocian171.6 - 167.7France Ostrea acuminata (170160)
Bathonian168.3 - 166.1United Kingdom (Scotland) P. sp. (186682)
Bathonian168.3 - 166.1China P. acaminata (127178)
Bathonian168.3 - 166.1United Kingdom (England) P. hebridica (36548 36549 36550 36553 36555 36556 38401)
Bathonian168.3 - 166.1Kenya Liostrea dubiensis (36460)
Bathonian168.3 - 166.1China (Qinghai) P. hebredica (61520)
Bathonian168.3 - 166.1Tanzania Liostrea dubiensis (36406 36407)
Early/Lower Bathonian167.7 - 164.7France (Champagne-Ardenne) Ostrea acuminata (96148 96156 96161 96165 96171 96183 96194)
Early/Lower Bathonian167.7 - 164.7United Kingdom (England) P. sp. (31054)
Early/Lower Bathonian167.7 - 164.7France (Picardie) Ostrea acuminata (96164)
Late/Upper Bathonian167.7 - 164.7United Kingdom (England) P. sp. (38482)
Middle Bathonian167.7 - 164.7United Kingdom (England) Ostrea acuminata (59716) P. hebridica (36546)
Callovian166.1 - 163.5United Kingdom (England) P. sp. (38483)
Callovian - Oxfordian166.1 - 157.3Somalia Liostrea dubiensis (94519) Ostrea dubiensis (92991 93014 93015)
Callovian - Oxfordian166.1 - 157.3Tunisia P. hebridica (13809 13860)
Callovian - Early/Lower Oxfordian166.1 - 155.7Tunisia P. hebridica (13688)
Callovian - Kimmeridgian166.1 - 152.1China (Qinghai) P. hebredica (68571)
Middle Callovian - Late/Upper Callovian164.7 - 161.2Tunisia P. hebridica (13583)
Late/Upper Callovian - Late/Upper Oxfordian164.7 - 155.7Tunisia P. hebridica (13507)
Oxfordian163.5 - 157.3United Kingdom (England) Liostrea dubiensis (1559) P. sp. (1557 1563 1607 1904 1906 1907 1909 1914)
Oxfordian163.5 - 157.3Kenya Liostrea dubiensis (36482 36484)
Oxfordian163.5 - 157.3Tanzania Liostrea dubiensis (35507)
Oxfordian - Kimmeridgian163.5 - 152.1Tanzania Liostrea dubiensis (36423)
Late/Upper Jurassic161.5 - 145.0Portugal P. pustulosa (8515)
Late/Upper Oxfordian161.2 - 155.7France P. sp. (4789 44516)
Late/Upper Oxfordian161.2 - 155.7Spain Liostrea dubiensis (36211)
Late/Upper Oxfordian161.2 - 155.7Kenya Liostrea dubiensis (36494)
Middle Oxfordian161.2 - 155.7France (Normandy) P. sp. (5249)
Middle Oxfordian161.2 - 155.7France P. sp. (4860 4918)
Kimmeridgian157.3 - 152.1Portugal Liostrea dubiensis (8519) P. pustulosa (8042 8043 8044 8184 8426 8511 8512 8518 8672 8674) P. sp. (8603 8673)
Kimmeridgian157.3 - 152.1Tanzania Liostrea dubiensis (35458)
Kimmeridgian157.3 - 152.1Portugal (Centro) P. pustulosa (68220)
Kimmeridgian - Early/Lower Tithonian157.3 - 145.0Portugal Liostrea dubiensis (8102) P. pustulosa (8289)
Early/Lower Kimmeridgian155.7 - 150.8Switzerland (Jura) P. dubiensis, P. monsbeliardensis (185662)
Late/Upper Kimmeridgian155.7 - 150.8Portugal Liostrea dubiensis (68234) P. pustulosa (68232 68236 68237 68240 68241) P. sp. (68235)
Late/Upper Kimmeridgian155.7 - 150.8Tanzania Liostrea dubiensis (36279 36300 36302 36304)
Late/Upper Kimmeridgian - Early/Lower Tithonian155.7 - 145.0Portugal P. pustulosa (8153 8402)
Tithonian152.1 - 145.0Portugal P. pustulosa (68239) P. sp. (8155)
Tithonian152.1 - 145.0United Kingdom (England) P. sibirica (69130 69134)
Early/Lower Tithonian - Kimmeridgian150.8 - 152.1Portugal P. pustulosa (8167)
Early/Lower Tithonian150.8 - 145.0Tanzania Liostrea dubiensis (35461 35506 35509 35571)
Early/Lower Tithonian150.8 - 145.0Portugal Liostrea dubiensis (7414 7870 7891 7893 8158 8317) P. pustulosa (6872 8168 8335 8604) P. pusulosa (7888)
Lutetian47.8 - 41.3Libya Ostrea exogyroides (42138)
Priabonian38.0 - 33.9Libya Ostrea exogyroides (77237)