Maddenia (mammal)

MaddeniaMaddenia lapidaria
Maddenia is an extinct genus of astrapothere, meridiungulate herbivore mammals characterised by its large tusks and the development of proboscis, endemic of South America.wikipedia
25 Related Articles

Astrapotheria

astrapotheresastrapothereAstrapotheria indet.
Maddenia is an extinct genus of astrapothere, meridiungulate herbivore mammals characterised by its large tusks and the development of proboscis, endemic of South America.

Deseadan

This genus was discovered in an outcrop near to the Lake Colhué Huapi in the place La Cantera, in the Chubut Province, in Argentina, in sediments corresponding to the Sarmiento Formation, that dates of the Late Oligocene (Deseadan South American land mammal age).

Astrapotheriidae

Astrapotheriidae indet.astrapotheriidastrapotherid
Its molar were high, with complex crowns and with canines moderately developed, characteristics of the advanced astrapotheres of big size of the Oligocene and the Miocene (like Astrapotherium and Granastrapotherium), which suggests that it must to occupy a habitat differentiated regarding other forms of big size, and that by its anatomical characteristics constitutes an intermediate form between the primitive forms like Albertogaudrya and the astrapotherids like Parastrapotherium, with which conform sister taxa to the two subfamilies of the family Astrapotheriidae, Astrapotheriinae and Uruguaytheriinae.
According to, Astrapotheriidae includes two clades, Astrapotheriinae and Uruguaytheriinae, and a number of early genera (Astrapotheriidae incertae sedis): Astraponotus (Middle Eocene), Maddenia (Early Oligocene), and Parastrapotherium (Late Oligocene-Early Miocene).

Genus

generageneric namegeneric
Maddenia is an extinct genus of astrapothere, meridiungulate herbivore mammals characterised by its large tusks and the development of proboscis, endemic of South America.

Meridiungulata

meridiungulatemeridiungulatesSouth American ungulate
Maddenia is an extinct genus of astrapothere, meridiungulate herbivore mammals characterised by its large tusks and the development of proboscis, endemic of South America.

Proboscis

proboscesproboscidesTrunk
Maddenia is an extinct genus of astrapothere, meridiungulate herbivore mammals characterised by its large tusks and the development of proboscis, endemic of South America.

South America

South AmericanSouthSouth-America
Maddenia is an extinct genus of astrapothere, meridiungulate herbivore mammals characterised by its large tusks and the development of proboscis, endemic of South America.

Lake Musters and Lake Colhué Huapí

Lake Colhue HuapiLake Colhué HuapiLake Musters
This genus was discovered in an outcrop near to the Lake Colhué Huapi in the place La Cantera, in the Chubut Province, in Argentina, in sediments corresponding to the Sarmiento Formation, that dates of the Late Oligocene (Deseadan South American land mammal age).

Chubut Province

ChubutProvince of ChubutChubut Province, Argentina
This genus was discovered in an outcrop near to the Lake Colhué Huapi in the place La Cantera, in the Chubut Province, in Argentina, in sediments corresponding to the Sarmiento Formation, that dates of the Late Oligocene (Deseadan South American land mammal age).

Argentina

ArgentineARGArgentinian
This genus was discovered in an outcrop near to the Lake Colhué Huapi in the place La Cantera, in the Chubut Province, in Argentina, in sediments corresponding to the Sarmiento Formation, that dates of the Late Oligocene (Deseadan South American land mammal age).

Oligocene

Late OligoceneOligocene epochEarly Oligocene
This genus was discovered in an outcrop near to the Lake Colhué Huapi in the place La Cantera, in the Chubut Province, in Argentina, in sediments corresponding to the Sarmiento Formation, that dates of the Late Oligocene (Deseadan South American land mammal age).

South American land mammal age

SALMA classificationSALMASouth American Land Mammal Ages
This genus was discovered in an outcrop near to the Lake Colhué Huapi in the place La Cantera, in the Chubut Province, in Argentina, in sediments corresponding to the Sarmiento Formation, that dates of the Late Oligocene (Deseadan South American land mammal age).

Latin

Latin languageLat.la
The name of the genus Maddenia, is in homage to the palaeontologist Richard Madden, by his contributions to the palaeontology of South America, whereas the name of the type species and only known, Maddenia lapidaria, derives of the Latin lapidarius, "of stone".

Type (biology)

type localitytype specimentype
This species is based in the holotype MPEF PV 7735, a fragment of jawbone with molar and premolar teeth associated and a partial canine associated, in addition to several additional specimens that include isolated teeth and other fragments of jaws.

Maxilla

upper jawmaxillaemaxillary bone
This species is based in the holotype MPEF PV 7735, a fragment of jawbone with molar and premolar teeth associated and a partial canine associated, in addition to several additional specimens that include isolated teeth and other fragments of jaws.

Molar (tooth)

molarmolarsmolar teeth
This species is based in the holotype MPEF PV 7735, a fragment of jawbone with molar and premolar teeth associated and a partial canine associated, in addition to several additional specimens that include isolated teeth and other fragments of jaws.

Premolar

premolarsbicuspidcheek teeth
This species is based in the holotype MPEF PV 7735, a fragment of jawbone with molar and premolar teeth associated and a partial canine associated, in addition to several additional specimens that include isolated teeth and other fragments of jaws.

Canine tooth

canine teethcaninecanines
This species is based in the holotype MPEF PV 7735, a fragment of jawbone with molar and premolar teeth associated and a partial canine associated, in addition to several additional specimens that include isolated teeth and other fragments of jaws.

Astraponotus

From these remains it was established that Maddenia was a small astrapothere, near of 50% smaller than Astraponotus.

Astrapotherium

Astrapotherium magnumAstrapotherium hesperinum?Astrapotherium ruderarium
Its molar were high, with complex crowns and with canines moderately developed, characteristics of the advanced astrapotheres of big size of the Oligocene and the Miocene (like Astrapotherium and Granastrapotherium), which suggests that it must to occupy a habitat differentiated regarding other forms of big size, and that by its anatomical characteristics constitutes an intermediate form between the primitive forms like Albertogaudrya and the astrapotherids like Parastrapotherium, with which conform sister taxa to the two subfamilies of the family Astrapotheriidae, Astrapotheriinae and Uruguaytheriinae.

Granastrapotherium

Granastrapotherium snorki
Its molar were high, with complex crowns and with canines moderately developed, characteristics of the advanced astrapotheres of big size of the Oligocene and the Miocene (like Astrapotherium and Granastrapotherium), which suggests that it must to occupy a habitat differentiated regarding other forms of big size, and that by its anatomical characteristics constitutes an intermediate form between the primitive forms like Albertogaudrya and the astrapotherids like Parastrapotherium, with which conform sister taxa to the two subfamilies of the family Astrapotheriidae, Astrapotheriinae and Uruguaytheriinae.

Albertogaudrya

Albertogaudrya unica
Its molar were high, with complex crowns and with canines moderately developed, characteristics of the advanced astrapotheres of big size of the Oligocene and the Miocene (like Astrapotherium and Granastrapotherium), which suggests that it must to occupy a habitat differentiated regarding other forms of big size, and that by its anatomical characteristics constitutes an intermediate form between the primitive forms like Albertogaudrya and the astrapotherids like Parastrapotherium, with which conform sister taxa to the two subfamilies of the family Astrapotheriidae, Astrapotheriinae and Uruguaytheriinae.

Cladogram

cladogramscladistic analysiscladistic interpretation
Cladogram according to Bond et al., 2011, standing out the phylogenetic position of Maddenia:

List of prehistoric mammals

Prehistoric mammalfossil mammalAdapisoricidae