Basic info | Taxonomic history | Classification | Included Taxa |
Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Protocardium stonei was named by Cragin (1893).
It was recombined as Protocardia stonei by Allison (1955).
It was recombined as Protocardia stonei by Allison (1955).
Sister species lacking formal opinion data
P. africana, P. barneyi, P. beiha, P. besairiei, P. bipi, P. contusa, P. hillanum, P. lycetti, P. moshuiwanensis, P. olea, P. oxynoti, P. parahillana, P. pertenuis, P. phillipiana, P. rahmuensis, P. regulare, P. schucherti, P. spillmani, P. subhillanum, P. texana, P. tosensis, P. amanoi, P. lycetti, P. peraltaensis, P. phillipiana
Synonymy list
Year | Name and author |
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1893 | Protocardium stonei Cragin p. 210 |
1955 | Protocardia stonei Allison p. 408 |
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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.
†Protocardia stonei Cragin 1893
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: f = family, c = class | |||||
References: Aberhan et al. 2004, Todd 2001 |
Age range: Late/Upper Aptian or 122.46000 to 113.00000 Ma
Collections: one only
Time interval | Ma | Country or state | Original ID and collection number |
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Late/Upper Aptian | Mexico (Baja California) | Protocardia stonei (1890) |