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Placenticeras meeki

Cephalopoda - Ammonitida - Placenticeratidae

Taxonomy

No taxonomic data are available

Sister species
P. bidorsatum (syn. Diplacomoceras canaliculatum, Ammonites dujardin), P. cumminsi, P. fritschi, P. kaffrarium, P. kolbajense, P. maherndli, P. mediasiaticum (syn. Turkmenites gissarensis), P. memoriaschloenbachi, P. orbignyanum, P. paraplanum, P. placenta, P. polyopsis, P. pseudoplacenta, P. semiornatum, P. syrtale (syn. Stantonoceras pseudocostatum), P. tamulicum, P. vancouverense, P. vredenburgi, P. whitfieldi
Sister species lacking formal opinion data
P. intercalare

Synonymy list
No taxonomic opinions are available

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassAmmonoidea()
orderAmmonitida
suborderAmmonitinaHyatt 1889
superfamilyHoplitoidea(Douvillé 1890)
familyPlacenticeratidae
genusPlacenticerasMeek 1876
speciesmeeki

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.

Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available

Age range: Early/Lower Campanian or 83.50000 to 70.60000 Ma

Collections (25 total)


Time interval Ma Country or state Original ID and collection number
Campanian83.6 - 72.1USA (Kansas) Placenticeras meeki (71830 71831 71832)
Campanian83.6 - 72.1USA (New Mexico) Placenticeras meeki (88565)
Campanian83.6 - 72.1USA (Wyoming) Placenticeras meeki (1637 1668 1677)
Early/Lower Campanian83.5 - 70.6Canada (Alberta) Placenticeras meeki (82652)
Late/Upper Campanian83.5 - 70.6USA (Colorado) Placenticeras meeki (162249)
Late/Upper Campanian83.5 - 70.6Canada (Saskatchewan) Placenticeras meeki (87441)
Late/Upper Campanian83.5 - 70.6Canada (Alberta) Placenticeras meeki (82638 82640 82641)
Late/Upper Campanian83.5 - 70.6USA (Montana) Placenticeras meeki (213000 213077 213173)
Late/Upper Campanian83.5 - 70.6USA (Wyoming) Placenticeras meeki (1639 1640)
Middle Campanian83.5 - 70.6USA (Texas) Placenticeras meeki (7467 7470)
Maastrichtian72.1 - 66.0USA (Texas) Placenticeras meeki (7483 7531 7536 7548 7569)