Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography
BETA TEST - Fossil data and pages are very much experimental and under development. Please report any problems

Gustafsonia

Description

Gustafsonia is an extinct genus of carnivoran belonging to the family Amphicyonidae (a bear dog). The type species, Gustafsonia cognita, was described in 1986 by Eric Paul Gustafson, who originally interpreted it as a miacid and named it Miacis cognitus. It was subsequently considered to be the only species of the diverse genus Miacis that belonged to the crown-group Carnivora, within the Caniformia, and it was ultimately assigned to the family Amphicyonidae. The type specimen or holotype was discovered in Reeve's bonebed, western Texas, in the Chambers Tuff Formation in 1986. The University of Texas holds this specimen. It is the only confirmed fossil of this species.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)9118772https://www.gbif.org/species/9118772
PaleoBioDB ID (PBDB)351932https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=351932
Rankgenus
Taxonomy (GBIF,PBDB)Life : Animalia : Chordata : Mammalia : Carnivora : Amphicyonidae : Gustafsonia
Taxonomic Status (GBIF)doubtful
Classification
(PBDB,GBIF)
RankNameAuthor
-Eukaryota
-OpisthokontaCavalier-Smith 1987
kingdomAnimalia
-TriploblasticaLankester 1877
-NephrozoaJondelius et al. 2002
-DeuterostomiaGrobben 1908
phylumChordataHaeckel 1847
subphylumVertebrataLamarck 1801
superclassGnathostomataGegenbauer 1874
-Osteichthyes
-SarcopterygiiRomer 1955
subclassDipnotetrapodomorpha
subclassTetrapodomorpha
-Tetrapoda
-ReptiliomorphaSäve-Söderbergh 1934
-AnthracosauriaSäve-Söderbergh 1934
-Batrachosauria
-Cotylosauria
-AmniotaHaeckel 1866
-SynapsidaOsborn 1903
-Therapsida
infraorderCynodontia
-EpicynodontiaHopson and Kitching 2001
infraorderEucynodontiaKemp 1982
-ProbainognathiaHopson 1990
-MammaliamorphaRowe 1988
-MammaliaformesRowe 1988
classMammaliaLinnaeus 1758
subclassTribosphenida
infraclassEutheria
-PlacentaliaOwen 1837
-LaurasiatheriaWaddell et al. 1999
-ScrotiferaWaddell et al. 1999
-FeraeLinnaeus 1758
-CarnivoramorphaWyss and Flynn 1993
-CarnivoraformesFlynn et al.
orderCarnivoraBowditch 1821
suborderCaniformiaKretzoi 1943
familyAmphicyonidaeHaeckel 1886
genusGustafsoniaTomiya & Tseng 2016
Scientific NameGustafsonia Tomiya & Tseng, 2016
Name Published InTomiya, Susumu & Zhijie J. Tseng. 2016. Whence the beardogs? Reappraisal of the Middle to Late Eocene “Miacis” from Texas, USA, and the origin of Amphicyonidae (Mammalia, Carnivora). Royal Society Open Science 3(160518): 1-25.
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Gustafsoniagenusbelongs to Amphicyonidaestated without evidenceTomiya and Tseng, 2016
Status (PBDB)extinct
Taxon Size (PBDB)2
First Recorded Appearance37.2 - 33.9 Ma
Paleogene
Last Recorded Appearance37.2 - 33.9 Ma
Paleogene
Environmentterrestrial (based on Eutheria)
Motilityactively mobile (based on Osteichthyes)
Dietcarnivore (based on Amphicyonidae)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)S. Tomiya and Z. J. Tseng. 2016. Whence the beardogs? Reappraisal of the Middle to Late Eocene ‘Miacis’ from Texas, USA, and the origin of Amphicyonidae (Mammalia, Carnivora). Royal Society Open Science 3:160518
Wikipediahttps://en.wikipedia.org/wiki/Gustafsonia

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Miacis cognitus
species
doubtful (GBIF)
listed (PBDB)
137.2 Ma
Eocene
37.2 Ma
Eocene

Synonymy List

YearName and Author
2016Gustafsonia Tomiya and Tseng p. 6 fig. 2

References

Tomiya S., Tseng Z. J. (2016) Whence the beardogs? Reappraisal of the Middle to Late Eocene ‘Miacis’ from Texas, USA, and the origin of Amphicyonidae (Mammalia, Carnivora), Royal Society Open Science 3, 160518 doi:10.1098/rsos.160518
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
 
Mineral and/or Locality  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: April 30, 2024 22:37:27
Go to top of page