PBDB Taxon

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

Isognomon (Isognomon) rekohuensis

Bivalvia - Ostreida - Malleidae

Taxonomy

Isognomon (Isognomon) rekohuensis was named by Crampton (1988) [DISTRIBUTION: Late Cretaceous; New Zealand.]. It is not a trace fossil.

Sister species lacking formal opinion data

I. alatus, I. bathonicus, I. biplicatum, I. bouchardi, I. brentonensis, I. carolinensis, I. cereviciana, I. chavani, I. cornelliana, I. flambarti, I. flamberti, I. foliaceum, I. heberti, I. holmesi, I. igsognomoides, I. infraliassica, I. jupiter, I. karakuldjensis, I. lamberti, I. leona, I. lotenoensis, I. lugdunensis, I. lusitanicum, I. lusitanicus, I. marspiallis, I. maxillatus, I. maxilliata, I. maxilliatus, I. nanus, I. perplana, I. promytilodes, I. promytiloides, I. pseudotomiyasui, I. quadrisulcatus, I. rekohuenis, I. ricordeanus, I. ricordiana, I. rollei, I. rugosum, I. rugosus, I. sanchuensis, I. securiformis, I. subplana, I. subplanatum, I. subplanum, I. subspatulus, I. theseni, I. tomiyasui, I. tortum, I. trivale, I. valida, I. volaticum, I. woodsi, I. yinganensis, I. zelandica, I. inaequicrenata, I. maxillatus, I. choshiensis, I. flambarti, I. ichikawai, I. jupiter, I. mechanquilensis, I. mytiloides, I. promytiloides, I. pygmaea, I. rectangularis, I. rikuzenicus, I. sanchuensis, I. subplana, I. volaticum, I. mimeticus, I. ageroensis, I. bathonicus, I. murchisonii, I. patchamensis, I. thurmanni, Pedalion linguaeformis

Synonymy list

Year	Name and author
1988	Isognomon (Isognomon) rekohuensis Crampton pp. 978-981 figs. pl. 89, figs. 1a-e
1998	Isognomon (Isognomon) rekohuensis Stilwell pp. 978-981 figs. pl. 89, figs. 1a-e

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
phylum	Mollusca
class	Bivalvia
—	Eubivalvia
subclass	Autobranchia	(Groblen 1894)
infraclass	Pteriomorphia	(Beurlen 1944)
—	Ostreomorphi	Ferussac 1822

Rank	Name	Author
—	Ostreioni	Ferussac 1822
—	Ostreata	Ferussac 1822
superorder	Ostreiformii	Ferussac 1822
order	Ostreida	(Fërussac 1822)
suborder	Malleidina	Gray 1854
superfamily	Pterioidea	Gray 1847
family	Malleidae	Lamarck 1819
subfamily	Isognomoninae	(Woodring 1925)
genus	Isognomon	Lightfoot 1786
subgenus	Isognomon	Lightfoot 1786
species	rekohuensis	Crampton 1988

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.

†Isognomon (Isognomon) rekohuensis Crampton 1988

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Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

aragonitef

Composition 2:

low Mg calcitef

Environment:

marine, brackisho

Locomotion:

stationaryg

Attached:

yesg

Epibiont:

yessuperf

Life habit:

epifaunalg

Diet:

suspension feederg

Vision:

blindc

Created:

2009-04-13 11:22:47

Modified:

2025-04-24 13:29:46

Source: g = genus, f = family, superf = superfamily, o = order, c = class

References: Aberhan et al. 2004, Hendy et al. 2009, Sanchez Roig 1926, Kiessling 2004

Age range: base of the Piripauan to the top of the Campanian or 86.10000 to 72.20000 Ma

Collections (4 total)

Time interval	Ma	Country or state	Original ID and collection number
Piripauan	86.1 - 83.6	New Zealand	Isognomon rekohuensis (63092)
Campanian	83.6 - 72.2	New Zealand	Isognomon rekohuensis (63091)
Campanian - Early/Lower Maastrichtian	83.6 - 66.0	New Zealand (Chatham Islands)	Isognomon rekohuensis (3644 3647)