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Pachyrisma rostratum

Bivalvia - Megalodontida - Megalodontidae

Taxonomy
Isocardia rostrata was named by Münster (1841).

It was recombined as Pachyrisma rostratum by Laube (1865); it was recombined as Megalodon rostratus by Bittner (1895); it was recombined as Gonodon rostratus by Broili (1904).

Sister species lacking formal opinion data
P. chamaeformis

Synonyms
Synonymy list
YearName and author
1841Isocardia rostrata Münster p. 87 figs. Pl 8, fig 26
1843Isocardia minuta Klipstein p. 261 figs. Pl 17, fig 1
1865Pachyrisma rostratum Laube p. 40 figs. Pl 15, fig 10
1895Megalodon minutus Bittner
1895Megalodon rostratus Bittner
1904Gonodon rostratus Broili

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
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
speciesrostratum()

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.

†Pachyrisma rostratum Münster 1841
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Invalid names: Isocardia minuta Klipstein 1843 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragonitesuperf
Locomotion: stationarysuperf
Life habit: semi-infaunalsuperf
Diet: suspension feedersuperf
Vision: blindc
Created: 2007-09-07 08:30:28
Modified: 2007-09-07 10:30:28
Source: superf = superfamily, c = class
References: Aberhan et al. 2004, Kiessling 2003

Age range: base of the Longobardian to the top of the Julian or 239.48000 to 233.60000 Ma

Collections (4 total)


Time interval Ma Country or state Original ID and collection number
Longobardian239.48 - 237.0Italy (Trentino) Gonodon rostratus (44953)
Julian237.0 - 233.6Italy Gonodon rostratus, Megalodon rostratus, Megalodon minutus (144634) Isocardia rostrata (137429) Megalodon rostratus (69688)