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Bristoliinae
Taxonomy
Bristoliinae was named by Palmer and Repina (1993).
It was assigned to Olenellidae by Palmer and Repina (1993), Palmer (1998); and to Biceratopsidae by Lieberman (1998), Lieberman (1999).
It was assigned to Olenellidae by Palmer and Repina (1993), Palmer (1998); and to Biceratopsidae by Lieberman (1998), Lieberman (1999).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1993 | Bristoliinae Palmer and Repina p. 23 |
| 1998 | Bristoliinae Lieberman p. 73 |
| 1998 | Bristoliinae Palmer p. 659 |
| 1999 | Bristoliinae Lieberman p. 115 |
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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.
Subfm. †Bristoliinae Palmer and Repina 1993
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G. †Bristolia Harrington 1956
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†Bristolia anteros Palmer and Halley 1979
†Bristolia bristolensis Resser 1928
†Bristolia colberti Gapp and Lieberman 2014
†Bristolia fragilis Palmer and Halley 1979
†Bristolia harringtoni Lieberman 1999
†Bristolia insolens Resser 1928
†Bristolia mohavensis Hazzard and Crickmay 1933
G. †Lochmanolenellus Lieberman 1998
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†Lochmanolenellus mexicana Lochman 1952
†Wanneria mexicana prima Lochman 1952
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. R. Palmer and L. N. Repina 1993 | Olenellidae with glabella usually strongly constricted at SI or L2; transverse width of anterior part of Li usually distinctly narrower than occipital ring; glabellar furrows generally well developed. Preglabellar field shorter than border or absent. Posterior tips of ocular lobes oppo- site or anterior to Ll. Third thoracic segment with inner part of pleural region strongly expanded distally; pleural spine may be extended posterior to end of thorax. Opisthothorax well developed. Pygidium not known. | |
| B. S. Lieberman 1999 | Bristoliinae is redefined as a
116 Peabody Museum Bulletin 45 monophyletic subfamily that includes only the genera Fremontella, Lochmanolenellus and Bristolia. This subfamily can be defined by the possession of the following diagnostic char- acters (thoracic characters only found in a few species of Bristolia, the only members of the subfamily for which thoracic remains exist): 1. anterior cephalic border developed as an el- evated ridge, and prominently separated from extraocular area by furrow; 2. anterolateral margins of frontal lobe not prominently separated from anterior extraocular area by furrow (not anterior border furrow); 3. prominent parafrontal band not visible in dorsal view; 4. anterolateral margins of frontal lobe at each side of midline deflected posteriorly at roughly 10 degree angle relative to transverse line; 5. S3 same depth laterally as medially; 6. an- terodistal margins of L3 formed by ocular lobes; 7. surface of interocular area slopes evenly from tip of ocular lobe to glabella; 8. genal spine angle developed opposite S0 or position anterior of S0; 9. posterior edge of ocular lobe developed anterior of or opposite medial part of distal margin of L1; 10. lateral lobes absent from L0; 11. distal sector of S0 transverse; 12. intergenal angle relative to transverse line directed anteriorly at least 35 degrees; 13. T3 macropleural, pleural spine of T3 projects further posteriorly than length of entire protho- rax; 14. anterior margin of thoracic pleural furrow on T3, when proceeding from proximal to distal edge, parallels a transverse line before flexing strongly posteriorly; 15. posterior margin of thoracic pleural furrow on T3 with medial part directed strongly posteriorly, dis- tal part parallel to a transverse line or weakly flexing anterolaterally; 16. thoracic pleural spines on segments 5 to 8 developed as short projections extending two thoracic segments back; 17. sharp boundary between thoracic pleural furrow and anterior band; 18. prominent spine present on 15th thoracic axial ring. |
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Aberhan et al. 2004, Hendy et al. 2009 | |||||
Collections (46 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Cambrian | Canada (Northern Territories) | Bristolia colberti (228650) | |
| Atdabanian - Toyonian | Argentina | Fremontella inopinata (73361) | |
| Montezuman | Mexico | Wanneria mexicana (10682) | |
| Lenian | Argentina | Fremontella inopinata (51754) | |
| Dyeran | Canada (Newfoundland) | Bristolia mohavensis (195924) | |
| Dyeran | Mexico (Sonora) | Bristolia bristolensis (90559) | |
| Dyeran | USA (Nevada) | Bristolia anteros (149558) Bristolia anteros, Bristolia fragilis (149555 149556) Bristolia bristolensis (149576) Bristolia fragilis (149551) | |
| Dyeran | USA (California) | Bristolia anteros (149629 149699 226626) Bristolia anteros, Bristolia fragilis (10613 151378 230439) Bristolia brachyomma (10630) Bristolia bristolensis (10609 149628 149647 149648 149693 149694 149698) Bristolia bristolensis, Bristolia anteros, Bristolia fragilis (149610) Bristolia bristolensis, Bristolia insolens (10610) Bristolia fragilis (149649) Bristolia mohavensis (10607) Bristolia n. sp. 2, Bristolia n. sp. 3 (10618) Bristolia sp. (226265 226271 230298) Bristolia sp.1, Bristolia bristolensis (10608) Bristolia sp.2 (10612 10615 10616) Bristolia sp.2, Bristolia anteros (10611) Bristolia sp.2, Bristolia sp.3, Bristolia sp.4, Bristolia sp.5 (10619) Bristolia sp.3 (10621) Mesonacis bristolensis, Paedeumias mohavensis (219694) Mesonacis insolens (219698) Mesonacis insolens, Bristolia bristolensis, Paedeumias mohavensis, Bristolia anteros, Bristolia harringtoni (219695) Olenellus bristolensis, Olenellus insolens, Paedeumias mohavensis (192036) Paedeumias mohavensis (219697 219699) |