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Anticosticrinus natiscotecensis
Taxonomy
Anticosticrinus natiscotecensis was named by Cole et al. (2025). Its type specimen is AMNH-FI-139850, a calyx (calyx + arms), and it is a 3D body fossil. Its type locality is Natiscotec River, Anticosti Island, which is in a Hirnantian marine horizon in the Ellis Bay Formation of Canada. It is the type species of Anticosticrinus.
Synonymy list
| Year | Name and author |
|---|---|
| 2025 | Anticosticrinus natiscotecensis Cole et al. figs. 2, 3 |
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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.
†Anticosticrinus natiscotecensis Cole et al. 2025
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| S. R. Cole et al. 2025 | Anisocrinid with elongate ellipsoidal crown; regular interrays consisting of a single, large plate; radianal pentagonal, positioned directly below the C radial; anal X in contact with the upper left side of the radianal; at least two additional plates positioned directly above the anal X; firmly interlocking proximal brachials and interray plates; brachials fixed through the proximal tertibrachials; fixed intrabrachial plates between half rays and quarter rays; brachial plates with laterally extending rounded to triangular projections. |
Measurements
No measurements are available
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| Source: o = order, subc = subclass, c = class, p = phylum | |||||
| References: Aberhan et al. 2004, Kiessling 2004, Hendy et al. 2009, Aberhan 1992 | |||||
Age range: Hirnantian or 445.20000 to 443.10000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Hirnantian | Canada (Quebec) | Anticosticrinus natiscotecensis (type locality: 241653) |