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Tylostoma allisoni
Taxonomy
Tylostoma allisoni was named by Squires and Saul (2004) [TYPE LOCALITY: UCMP A-8321, Alisitos Fm, Baja California, Mexico (Late Aptian). TYPE REPOSITORY: UCMP, California.]. Its type specimen is UCMP 33732 and is not a trace fossil. Its type locality is Alisitos Fm. (UCB A-8321), which is in an Aptian shallow subtidal sandstone in the Alisitos Formation of Mexico.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2004 | Tylostoma allisoni Squires and Saul pp. 25-26 figs. figs. 2-6 |
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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.
†Tylostoma allisoni Squires and Saul 2004
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: superf = superfamily, c = class | |||||
| References: Kiessling 2004, Hendy et al. 2009 | |||||
Age range: Late/Upper Aptian or 122.46000 to 113.00000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Aptian | Mexico (Baja California) | Tylostoma allisoni (1890) Tylostoma mutabilis (1878) |