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Trigrammaria
Taxonomy
Trigrammaria was named by Wilson (1945). Its type is Trigrammaria trigonalis.
It was assigned to Strophomenida by Sepkoski (2002); and to Furcitellinae by Williams et al. (2000) and Roomusoks (2004).
It was assigned to Strophomenida by Sepkoski (2002); and to Furcitellinae by Williams et al. (2000) and Roomusoks (2004).
Species
Microtrypa estonica, Microtrypa minima, Microtrypa oelandica, T. altilis, T. ampla, T. cassata, T. estonica, T. minima, T. trigonalis (type species), T. winchelli
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1945 | Microtrypa Wilson |
| 1945 | Trigrammaria Wilson |
| 2000 | Trigrammaria Williams et al. p. 237 |
| 2002 | Microtrypa Sepkoski |
| 2002 | Trigrammaria Sepkoski |
| 2004 | Trigrammaria Roomusoks |
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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. †Trigrammaria Wilson 1945
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†Trigrammaria altilis Wilson 1945
†Trigrammaria ampla Percival 1991
†Trigrammaria cassata Williams 1962
†Trigrammaria estonica Roomusoks 1985
†Trigrammaria minima Roomusoks 1985
†Trigrammaria trigonalis Wilson 1945
†Trigrammaria winchelli Hall and Clarke 1892
Invalid names: Microtrypa Wilson 1945 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: base of the Middle Ordovician to the top of the Eastonian or 470.00000 to 449.50000 Ma
Collections (30 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Ordovician | USA (New York) | T. sp. (333) | |
| Caradoc | USA (Nevada) | Microtrypa sp. (320 419 420) | |
| Late/Upper Ordovician | Estonia | T. minima (144639) | |
| Blackriveran | USA (Illinois, Iowa) | T. winchelli (23791 23792 23794) | |
| Blackriveran - Rocklandian | USA (Minnesota) | T. winchelli (23276) | |
| Blackriveran - Rocklandian | USA (Illinois, Iowa) | T. winchelli (23795) | |
| Shermanian | Canada (Ontario) | Microtrypa altilis (26272) | |
| Chatfieldian | Canada (Ontario) | Microtrypa plana (26263) | |
| Oandu | Estonia | T. minima (168742) | |
| Eastonian | Australia (New South Wales) | T. ampla (2699 2745 2751 166843 166845 166848 166849) T. sp. (2648) | |
| Cheneyan | United Kingdom (Scotland) | Microtrypa cassata (164412 164950) | |
| Rakvere | Estonia | T. estonica (168562 168620 168655 168769 168790) | |
| Maysvillian | USA (Ohio) | T. sp. (388) | |
| Richmondian | Canada (Northwest Territories) | T. sp. (188772) |