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Strachanognathidae
Taxonomy
Strachanognathidae was named by Bergstrom (1981). It is not extant.
It was assigned to Distacodontacea by Clark et al. (1981); to Conodonta by Dzik (1994); and to Prioniodontida by Armstrong (1997).
It was assigned to Distacodontacea by Clark et al. (1981); to Conodonta by Dzik (1994); and to Prioniodontida by Armstrong (1997).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1981 | Strachanognathidae Bergstrom p. W147 |
| 1981 | Strachanognathidae Clark et al. p. W103 |
| 1994 | Strachanognathidae Dzik p. 60 |
| 1997 | Strachanognathidae Armstrong p. 788 |
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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.
Fm. †Strachanognathidae Bergstrom 1981
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G. †Decoriconus Cooper 1976
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†Decoriconus fragilis Branson and Mehl 1933
†Decoriconus minutus Serpagli 1967
G. †Strachanognathus
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. Dzik 1994 | Apparatus composed of elements of approximately uniform size with smooth gradation of shapes, forming a single symmetry tran sition series (ne elements in advanced forms may be somewhat separated morphologically). Symmetrical elements, if present, of very generalized morphology. |
Measurements
No measurements are available
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| Source: c = class, subp = subphylum | |||||
| References: Carroll 1988, Aberhan 1992 | |||||
Collections (561 total)
Oldest occurrences | |||
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Tremadocian | Canada (Newfoundland and Labrador) | Decoriconus peselephantis (234138 234141 234142) | |
| Hunneberg | Estonia (Harju) | Decoriconus peselephantis (203647) | |
| Floian | Russian Federation | Decoriconus peselephantis (61785 61787 61788 61789) | |
| Arenig | Canada (Ontario) | Strachanognathus parva (173871) | |
| Arenig | Argentina | Strachanognathus sp. (8746) | |
| Billingen | Estonia (Harju) | Decoriconus peselephantis (203640 203641 203642 203646) | |
| Dapingian | Canada (Newfoundland) | Strachanognathus parvus (210461) | |
| Volkhov | Russian Federation | Decoriconus peselephantis (61796 61799 61802) | |
| Volkhov | Estonia (Harju) | Decoriconus mercurius (203618 203619 203620 203621 203634 203635 203636 203637 203638 203639) | |
| Darriwilian | China (Guizhou) | Scabbardella altipes (222778) | |
Youngest occurrences |
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| Time interval | Ma | Country or state | PBDB collection number |
| Ludfordian - Pridoli | Sweden (Gotland) | Decoriconus fragilis (200163 200478 200481) | |
| Pridoli | Austria | Decoriconus fragilis (140826 141071) | |
| Pridoli | Australia (New South Wales) | Decoriconus fragilis (177224 177229 177233 177234 177235 177236 177237 177238 177242 177245 177246 177247 177248 178408 178416 178431) | |
| Pridoli - Pragian | Australia (New South Wales) | Decoriconus fragilis (194202 194205 194206 194207 194208 194219 194222 194228) | |
| Lochkovian | USA (Texas) | Decoriconus fragilis (3530) | |
| Lochkovian | Australia (New South Wales) | Decoriconus fragilis (177274 177275 177296 177311 177317 177322) | |
| Lochkovian | Morocco | Decoriconus fragilis (186347 186349 186351 186352 186405) | |
| Lochkovian | Austria | Decoriconus fragilis (140852 141004 141041 141042 141043 141044 141045 141046 141047 141048 141049 141051 141052 141053 141054 141055 141056 141062 141063 141065 141067 141170) | |
| Pragian | Morocco | Decoriconus fragilis (186353 186354 186408 186418) | |
| Pragian | Austria | Decoriconus fragilis (141031 141032 141036 141077 141078 141079 141081 141086 141088) Decoriconus klapperi (141122) | |