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Microparamyinae

Mammalia - Rodentia - Ischyromyidae

Taxonomy
Microparamyinae was named by Wood (1962).

It was assigned to Ischyromyidae by Dawson (2001).

Synonymy list
YearName and author
1962Microparamyinae Wood
2001Microparamyinae Dawson p. 1110

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Life
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
subclassSynapsida
Therapsida()
infraorderCynodontia()
RankNameAuthor
Mammaliamorpha
Mammaliaformes
classMammalia
Theriamorpha(Rowe 1993)
Theriiformes()
Trechnotheria
Cladotheria
Zatheria
subclassTribosphenida()
subclassTheria
Eutheria()
Placentalia
Boreoeutheria
EuarchontogliresMurphy et al. 2001
GliriformesWyss and Meng 1996
Glires()
Simplicidentata()
orderRodentiaBowdich 1821
familyIschyromyidaeAlston 1876
subfamilyMicroparamyinaeWood 1962
subfamilyMicroparamyinaeWood 1962

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.

Subfm. †Microparamyinae Wood 1962
show all | hide all
G. †Hartenbergeromys Escarguel 1999
G. †Masillamys Tobien 1954
G. †Mattimys Korth 1984
+
Mattimys kalicola Matthew 1918
G. †Microparamys Wood 1959
+
Microparamys bayi Dawson 2001
Microparamys chandoni Hartenberger 1971
Microparamys dubius Wood 1949
Microparamys hottingeri Marandat 1989
Microparamys lingchaensis Li et al. 1979
Microparamys minutus Wilson 1937
Microparamys nanus Teilhard de Jardin 1927
Microparamys nimius Storer 1988
Microparamys paisi Estravís 1994
Microparamys sambucus Korth and Emry 1989
Microparamys solidus Storer 1984
Microparamys solis Dawson and Constenius 2018
Microparamys tricus Wilson 1940
Microparamys woodi Kelly and Whistler 1994
G. †Pantrogna Hartenberger 1971
+
Pantrogna marandati Escarguel 1999
Pantrogna russelli Michaux 1964
G. †Sparnacomys Hartenberger 1971
+
Sparnacomys chandoni Hartenberger 1971
Sparnacomys georgei Hooker 2010
G. †Strathcona Dawson 2001
+
Strathcona major Dawson 2001
Strathcona minor Dawson 2001
Diagnosis
ReferenceDiagnosis
M. R. Dawson 2001Small- to medium-sized ischyromyid rodents; dental formula 1/1, 0/0, 2/1, 3/3. Lower molars have well-developed anterior cingulum; at least in early wear stages, anterior cingulum is separated by a buccal groove from the protoconid; buccal end of anterior cingulum may be cuspate; trigonid short anteroposteriorly with small trigonid basin; tendency toward strong transverse component in lophids of
lower molars, with metalophid and hypolophid from short to complete; mesoconid rounded; entoconid separated by groove from posterolophid. Upper molars have distinct hypocone; protoloph and metaloph directed toward protocone. Occlusal pattern on lower molars varies from
simple (Microparamys) to complicated by numerous small folds and crenulations (Lophiparamys, Mattimys).
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingo
Diet: herbivoreo
Reproduction: viviparoussubc
Created: 2005-08-26 14:04:46
Modified: 2005-08-26 16:04:46
Source: o = order, subc = subclass, c = class, subp = subphylum
References: Lillegraven 1979, Carroll 1988, Nowak 1999, Hendy et al. 2009, Ji et al. 2002

Age range: base of the Ypresian to the top of the Duchesnean or 56.00000 to 37.20000 Ma

Collections (149 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Paleocene - Early/Lower Eocene58.7 - 48.6USA (Wyoming) Microparamys cheradius (80579)
Clarkforkian56.8 - 55.8USA (Wyoming) Microparamys cheradius, Microparamys sp. (15085)
Ypresian56.0 - 47.8Belgium (Brabant) Microparamys nanus (35531)
Ypresian56.0 - 47.8France (Île-de-France) Microparamys n. sp. (68437)
Ypresian56.0 - 47.8France (Marne) Pantrogna russelli (35533)
Ypresian56.0 - 47.8United Kingdom (England) Microparamyinae indet. (174239) Microparamys nanus (133368) Pantrogna mandati (68439) Sparnacomys sp., Sparnacomys georgei, Pantrogna russelli (38868)
Ypresian - Lutetian56.0 - 41.3France (Languedoc-Roussillon) Microparamys sp. (182519)
Ypresian - Lutetian56.0 - 41.3France (Languedoc-Roussillon Region) Microparamys sp. (31717)
Graybullian55.8 - 50.3USA (Wyoming) Microparamys cheradius (15701)
Lostcabinian55.8 - 50.3USA (Wyoming) Microparamys sp., Mattimys kalicola (15930) Microparamys sp., Mattimys sp. (15917)
Lysitean - Lostcabinian55.8 - 50.3USA (Wyoming) Microparamys sp. (15451)
Wasatchian55.8 - 50.3USA (Colorado) Paramyinae indet. (15660)
Wasatchian55.8 - 50.3USA (California) Microparamys sp. (15677 15678)
Wasatchian55.8 - 50.3USA (New Mexico) Mattimys kalicola (15446)
Wasatchian55.8 - 50.3Canada (Northwest Territories) Microparamys bayi, Strathcona major, Strathcona minor (15583)
Wasatchian55.8 - 50.3USA (Wyoming) Mattimys kalicola (15942) Microparamys cheradius (15692 15694 46821) Microparamys hunterae (15673 15773 118482) Microparamys sp. (15493 15504 15729 27268 46696 46800)
Early/Lower Eocene55.8 - 48.6France (Corbieres) Microparamys hottingeri (92838)
Early/Lower Eocene55.8 - 48.6China (Hunan) Microparamys lingchaensis (180725)
Early/Lower Eocene55.8 - 48.6France (Var) Microparamys chandoni (35538)
Early/Lower Eocene55.8 - 48.6USA (Wyoming) Microparamys hunterae (15700 80580)
Early/Lower Eocene55.8 - 48.6Portugal (Região Centro) Microparamys paisi, Microparamys nanus (79200)
MP 1055.8 - 48.6Spain (Catalonia) Microparamys sp., Microparamys chandoni (182236)
MP 10 - MP 1155.8 - 40.4France Masillamys beegeri, Microparamys sp. (183396)
Early/Lower Eocene - Middle Eocene55.8 - 37.2United Kingdom (England) Pantrogna sp. 1 (3256)
Bridgerian50.3 - 46.2USA (Nevada) Mattimys sp., Microparamys sambucus (16218)
Bridgerian50.3 - 46.2USA (Utah) Microparamys minutus (16396)
Bridgerian50.3 - 46.2USA (Wyoming) Mattimys kalicola (16207 16415) Microparamys minutus (16092 16097 16098 16105 16107 16113 16137 16305 16309 16315 16418) Microparamys sp. (15837 16296 16499) Microparamys sp., Microparamys minutus (16219 16227 16441)
MP 13 - MP 1448.6 - 40.4France (Quercy) Microparamyinae indet. (36875)
Middle Eocene48.6 - 37.2Spain (Salamanca) Microparamys sp. (41311)
Lutetian47.8 - 41.3Spain (Zamora) Microparamys sp. (79704)
Lutetian47.8 - 41.3France (Languedoc-Roussillon Region) Microparamys monspeliensis (31762)
Early/Lower Uintan46.2 - 40.4USA (California) Microparamys minutus (16666 16669 16673 16674 16677 16678 16684 16689 16697 16702 16705 16706 16707 16708 16709 16710 16713 16714 16715 16716 16736 16737 16738 16745 16746 16747 16748 16750 16751 16752 16762) Microparamys sp. (16718 16719 16733 16734) Microparamys woodi (16694 16763 16764 16765)
Early/Lower Uintan46.2 - 40.4USA (Texas) Microparamys minutus, Lophiparamys sp. (16651)
Late/Upper Uintan46.2 - 40.4Canada (Saskatchewan) Microparamys dubius, Microparamys solidus (16626)
Late/Upper Uintan46.2 - 40.4USA (California) Microparamys sp. (16780) Microparamys woodi (16585 16766 16815 167831)
Late/Upper Uintan46.2 - 40.4USA (Texas) Microparamys sp. (16542 16614)
Uintan46.2 - 40.4USA (Utah) Microparamys dubius (16654) Microparamys sp. (213066)
Uintan46.2 - 40.4USA (Texas) Microparamys minutus (16587) Microparamys sp. (16624)
Uintan46.2 - 40.4USA (California) Microparamys sp. (16603) Microparamys tricus (16590 16796 16798 16799) Microparamys woodi (16615 16784 16786 16787 16789 16793)
Uintan46.2 - 40.4USA (Wyoming) Microparamys dubius (16513 16514 16517 16630)
Uintan46.2 - 40.4USA (Montana) Microparamys sp., Microparamys solis (222922 222923)
Late/Upper Uintan - Duchesnean46.2 - 37.2USA (California) Microparamys minutus (16616) Microparamys sp. (16529)
Uintan - Duchesnean46.2 - 37.2USA (California) Microparamys tricus (16533)
Duchesnean40.4 - 37.2USA (Wyoming) Microparamys dubius (16826) Sciuravus dubius (16884)
Duchesnean40.4 - 37.2Canada (Saskatchewan) Microparamys sp. (16845)
Duchesnean40.4 - 37.2USA (Texas) Microparamys perfossus (16822 16837 16851)
Duchesnean40.4 - 37.2USA (California) Microparamys tricus (16804 16806 16809 16810)