Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

Pachyrisma chamaeformis

Bivalvia - Megalodontida - Mesoserphidae

Taxonomy

No taxonomic data are available

Sister species
P. grande, P. rimosum, P. rostratum (syn. Isocardia minuta)
Sister species lacking formal opinion data
P. chamaeforme, P. cornuta, P. latum

Synonymy list
No taxonomic opinions are available

Please join the Paleobiology Database and enter some data

RankNameAuthor
—Yangprocta
superfamilyCynipoidea
superfamilyPlatygastroidea
familyMesoserphidae
familyPeleserphidae
superphylumLophotrochozoa
phylumMollusca
classBivalvia
—Eubivalvia
subclassAutobranchia(Groblen 1894)
infraclassHeteroconchia(Gray 1854)
RankNameAuthor
—CardiomorphiFerussac 1822
—CardioniFerussac 1822
—CardiidiaFerussac 1822
—CardiataFerussac 1822
superorderCardiiformiiFerussac 1822
orderMegalodontidaStarobogatov 1992
superfamilyMegalodontoidea(Morris 1853)
familyMegalodontidaeMorris 1853
genusPachyrismaMorris and Lycett 1850
specieschamaeformis

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: base of the Hettangian to the top of the Sinemurian or 201.40000 to 192.90000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Hettangian - Sinemurian201.4 - 192.9Tajikistan Pachyrisma chamaeformis (67013)