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Exogyra californica
Taxonomy
Exogyra californica was named by Packard (1922). Its type specimen is UCMP 12320 and is a 3D body fossil. Its type locality is UCMP loc. 2143, Santa Ana Mountains, which is in a Turonian marine mudstone in the Ladd Formation of California.
Sister species lacking formal opinion data
E. acroumbonata, E. acuticosta, E. aquila, E. aralensis, E. arientina, E. auricularis, E. benaventi, E. boussingaultii, E. boveyensis, E. canaliculata, E. cancellata, E. cartledgei, E. caudoni, E. columba, E. columba, E. columbella, E. columbella levis, E. costata, E. costata spinifera, E. costata spinosa, E. couloni, E. crassa, E. ecersa, E. erraticostata, E. exogyroides, E. faasi, E. forteaui, E. fourtaui, E. guaranitica, E. haarmanni, E. imbricata, E. lamellosa, E. lateralis, E. latissima, E. levis, E. levis, E. macroptera, E. maradensis, E. medinae, E. mermerti, E. mesabiensis, E. minos, E. obliquata, E. olisponensis, E. overweegi, E. pellicoi, E. plana, E. plexa, E. ponderosa, E. ponderosa erraticostata, E. potosina, E. raulini, E. remiformis, E. rivelensis, E. robusta, E. roederi, E. sinuata, E. spinifera, E. suborbiculata, E. tamulica, E. texana, E. texana, E. tlahualiloensis, E. trigeri, E. turkestanensis, E. whitneyi, E. squamata, Ostrea boussaci, Ostrea eversa
Entered
by J. Marcot on 2018-02-17
Synonymy list
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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.
†Exogyra californica Packard 1922
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| E. L. Packard 1922 | Shell small, much higher than long; irregular in outline. Umbones prominent with an umbonal ridge extending to the base. Surface marked by crude radiating ribs . |
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Aberhan et al. 2004, Kiessling 2004, Steuber 2002 | |||||
Age range: Late/Upper Turonian or 93.90000 to 89.80000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Turonian | USA (California) | Exogyra californica (type locality: 207820) |