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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Conotheca australiensis
Taxonomy
Conotheca australiensis was named by Bengtson et al. (1990) [Bengston in Bengston et al. 1990]. It is not a trace fossil.
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1990 | Conotheca australiensis Bengtson et al. p. 216 figs. 143, 144 |
| 1996 | Conotheca laurentiensis Landing and Bartowski p. 756 figs. 7.1–7.8, 7.20 |
| 2001 | Conotheca australiensis Gravestock et al. p. 98 figs. Pl. X, figs. 1, 2 |
| 2001 | Conotheca australiensis Qian et al. figs. pl. 1 f. 6-10 |
| 2004 | Conotheca australiensis Malinky and Skovsted pp. 572-574 fig. 14 |
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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.
†Conotheca australiensis Bengtson et al. 1990
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Invalid names: Conotheca laurentiensis Landing and Bartowski 1996 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. M. Malinky and C.B. Skovsted 2004 | Gently tapering conch with small apical angle of about 15°; conch may have slight helical coil; aperture is planar and lying in a plane perpendicular to long axis of conch. Shell covered with closely though irregularly spaced transverse lines of varying intensity in different places on conch; apical termination unknown.
Operculum circular in outline; exterior with rounded summit that may be lower than surrounding surface; exterior may have coarse concentric lines; interior with two cardinal processes that diverge at angle of about 50°; cardinal processes broad at base but taper to eventually terminate in blunt rounded surface; emanating from the cardinal processes is a circular ridge set inward from edge of operculum. Interior otherwise smooth. |
Measurements
No measurements are available
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| Source: g = genus, p = phylum | |||||
| References: Hendy et al. 2009, Hendy 2009 | |||||
Age range: base of the Atdabanian to the top of the Dyeran or 521.00000 to 511.20000 Ma
Collections (47 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Atdabanian | Australia (South Australia) | Conotheca australiensis (96454 96918 96920 96931 96960 96966 97739 97741 97742 97744) | |
| Atdabanian | Canada (Nova Scotia) | Conotheca australiensis (9351 9385 9386 9387 9389 9390 232701) | |
| Atdabanian - Botomian | Canada (Nova Scotia) | Conotheca australiensis (9391) | |
| Botomian | Australia (South Australia) | Conotheca australiensis (96916 96917 96932 96958 96959 97700 97701 97717) | |
| Dyeran | USA (Pennsylvania) | Conotheca australiensis (97879) | |
| Dyeran | Canada (Quebec) | Conotheca laurentiensis (78753 78755) | |
| Dyeran | Greenland (Peary Land) | Conotheca australiensis (210618) | |
| Dyeran | USA (New York) | Conotheca laurentiensis (78762 78763 78764 78765 78767) | |
| Dyeran | Greenland | Conotheca australiensis (49456 49458 49459 49461 49462 49464 49465 49471 49473 67778 67781) | |
| Toyonian | Turkey (Konya) | Conotheca australiensis (91535) |