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Alokistocare
Taxonomy
Alokistocare was named by Lorenz (1906) [Sepkoski's age data: Cm Tojo-l Cm mMid-l Sepkoski's reference number: 474,479]. It is not extant. Its type is Conocephalites subcoronatus.
It was assigned to Ptychoparioidea by Palmer (1954); to Ptychopariida by Palmer and Halley (1979) and Sepkoski (2002); and to Alokistocaridae by Jell and Adrain (2002) and Sundberg (2018).
It was assigned to Ptychoparioidea by Palmer (1954); to Ptychopariida by Palmer and Halley (1979) and Sepkoski (2002); and to Alokistocaridae by Jell and Adrain (2002) and Sundberg (2018).
Species
Species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1906 | Alokistocare Lorenz |
| 1954 | Alokistocare Palmer p. 71 |
| 1979 | Alokistocare Palmer and Halley p. 99 |
| 1994 | Pseudoalokistocare Sundberg |
| 2002 | Alokistocare Jell and Adrain p. 465 |
| 2002 | Alokistocare Sepkoski |
| 2002 | Pseudoalokistocare Sepkoski |
| 2018 | Alokistocare Sundberg p. 28 |
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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. †Alokistocare Lorenz 1906
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†Alokistocare alta Fritz 1968
†Alokistocare althea Walcott 1916
†Alokistocare aoris Walcott 1916
†Alokistocare charax Walcott 1917
†Alokistocare georgense Resser 1935
†Alokistocare modestum Lochman 1952
†Alokistocare nactum Resser 1938
†Alokistocare nasutum Rasetti 1965
†Alokistocare natale Resser 1938
†Alokistocare noduliferum Resser 1938
†Alokistocare normale Resser 1938
†Alokistocare notatum Resser 1938
†Alokistocare nothum Resser 1938
†Alokistocare paranotatum Rasetti 1951
†Alokistocare pomona Walcott 1916
†Alokistocare punctatum Resser 1939
†Alokistocare septum Resser 1939
†Alokistocare spencense Resser 1939
†Alokistocare stephenensis Resser 1935
†Alokistocare subcoronatum Hall and Whitfield 1877
†Alokistocare swasii Sundberg 1994
Invalid names: Pseudoalokistocare Sundberg 1994 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. R. Palmer 1954 | Micropygous ptychoparioidea. Frontal area long. Brim and border present but poorly differentiated. Median swelling extends from brim onto border. Width of fixed cheeks greater than one-half width of glabella. Thorax of 17 to 23 segments. | |
| F. A. Sundberg 1994 (Pseudoalokistocare) | Small to moderate size Altioccu- linae with cranidium with large (40-50% glabellar length), medially set, elevated palpebral lobes; mod- erately strong downsloping anterior area of fixigena and preglabellar field; strongly tapered glabella; elongated, narrow, median swelling either within or anterior of anterior border furrow; no deep pits in anterior border furrow; moderate width poste- rior area of fixigenae (35% glabellar length); fine granular ornamentation. Pygidium subelliptical, transversely elongate; tapered, narrow, level border; anterior pleural bands weakly convex; poste- rior pleural bands moderately to weakly convex. |
Measurements
No measurements are available
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| Source: g = genus, f = family, c = class | |||||
| References: Hendy 2009, Aberhan et al. 2004 | |||||
Collections (37 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Delamaran | USA (Nevada) | A. alta (155979 155985 155991 155993 155998) | |
| Delamaran | USA (Idaho) | A. sp. (207) A. spencense, A. septum (76096) | |
| Delamaran | USA (California) | A. sp. (226840) A. sp.1 (149655) | |
| Delamaran | USA (Utah) | A. carnatum, A. normale (10533) | |
| Delamaran | Canada (British Columbia) | A. paranotatum (225256) A. sp. (121959) A. stephenensis (50544) | |
| Delamaran - Menevian | Mexico | A. mexicana, A. althea, A. modestum (10687) | |
| Delamaran - Marjumian | USA (Nevada) | Pseudoalokistocare swasii (225257 225258) | |
| Solvan | Canada (Newfoundland and Labrador) | A. sp. (10821) | |
| Solvan - Menevian | USA (Pennsylvania) | A. aoris (8593 8594 8595 8596) A. nasutum (8597) | |
| Middle Cambrian | USA (Utah) | A. subcoronatum (64529) | |
| Middle Cambrian | USA (Alaska) | A. lobatum (64541) | |
| Middle Cambrian | USA (Nevada) | A. sp. 2 (149608) | |
| Middle Cambrian | USA (Idaho) | A. normale, A. noduliferum, A. natale, A. nactum, A. nothum, A. notatum (127486) | |
| St Davids | USA (Utah) | A. sp. (216) | |
| Menevian | USA (Idaho) | A. euchare (50208) | |
| Marjumian | USA (Georgia) | A. sp. (64483 64484 64486) | |
| Merioneth | USA (Utah) | A. sp. (206) | |
| Merioneth | USA (Arizona) | A. sp. (205 210) | |
| Merioneth | USA (Idaho) | A. sp. (198) | |
| Merioneth | USA (Wyoming) | A. sp. (219) | |
| Merioneth | Canada (Alberta-British Columbia) | A. sp. (213) |