Basic info | Taxonomic history | Classification | Included Taxa |
Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Longoconcha
Taxonomy
Longoconcha was named by Stephenson (1941) [Sepkoski's age data: K Coni K Maes-u]. It is not extant.
It was assigned to Neogastropoda by Sepkoski (2002); and to Volutoderminae by Sohl (1964) and Saul and Squires (2008).
It was assigned to Neogastropoda by Sepkoski (2002); and to Volutoderminae by Sohl (1964) and Saul and Squires (2008).
Species
Synonymy list
Year | Name and author |
---|---|
1941 | Longoconcha Stephenson |
1964 | Longoconcha Sohl p. 250 |
2002 | Longoconcha Sepkoski |
2008 | Longoconcha Saul and Squires p. 232 |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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. †Longoconcha Stephenson 1941
show all | hide all
†Longoconcha dalli Stephenson 1941
†Longoconcha eumeka Saul and Squires 2008
†Longoconcha imbricatus Sohl 1964
†Longoconcha quadrilirata Sohl 1964
†Longoconcha tennesseensis Wade 1926
Diagnosis
Reference | Diagnosis | |
---|---|---|
L. R. Saul and R. L. Squires 2008 | Elongate, narrowly fusiform to subcylindrical vol- utodermine volutes, having flanks of mature whorls flattened, spire high and evenly tapering. Three or more strong columellar folds. |
Measurements
No measurements are available
|
|
||||
|
|||||
|
|
||||
|
|
||||
Source: f = family, c = class | |||||
References: Hendy et al. 2009, Kiessling 2004 |
Age range: base of the Maastrichtian to the top of the Early/Lower Maastrichtian or 72.10000 to 66.00000 Ma
Collections (68 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Early/Lower Campanian - Middle Campanian | USA (Mississippi) | L. dalli (32141) L. imbricatus (6656 6660) L. tennesseensis (32139) | |
Late/Upper Campanian | USA (California) | L. eumeka (99313) | |
Late/Upper Campanian | USA (Delaware) | L. sp. (6146 6149 6155 6156 6157 6170 6171) | |
Late/Upper Campanian - Early/Lower Maastrichtian | USA (Tennessee) | L. tennesseensis (7515) | |
Late/Upper Campanian - Early/Lower Maastrichtian | USA (California) | L. eumeka (220382) | |
Maastrichtian | USA (Texas) | L. sp. (4584) | |
Maastrichtian | USA (California) | L. sp. (185740) | |
Maastrichtian | USA (Mississippi) | L. quadrilirata (7486) | |
Maastrichtian | USA (Tennessee) | L. protracta, L. quadilirata, L. tennesseensis (205445) | |
Early/Lower Maastrichtian | USA (Alabama) | L. sp. (4240 4244 4247 4254 4260) | |
Early/Lower Maastrichtian | USA (Mississippi) | L. quadrilirata (7586 7590 7602) L. sp. (4111) | |
Early/Lower Maastrichtian | USA (Georgia) | L. sp. (4278 4279) | |
Early/Lower Maastrichtian | Mexico (Baja California) | L. eumeka (180431) | |
Late/Upper Maastrichtian | USA (Maryland) | L. sp. (4368) | |
Late/Upper Maastrichtian | USA (Texas) | L. dalli (4475) L. sp. (4414 4482) | |
Late/Upper Maastrichtian | USA (Mississippi) | L. dalli (4126 4127) L. sp. (4142 4147 4150 4151 4154 4156 4157 4158 4160 4161 4163 4167) | |
Late/Upper Maastrichtian | USA (Alabama) | L. dalli (83238) L. sp. (4178 4180 4183 4186 4194 4196 4201 4202 4203 4205 4206 4213 4214 4215 4216 4225 4228 4230 83225) |