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Heterohyus ✝

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Description

Heterohyus is an extinct genus of apatemyid from the early to late Eocene. A small, tree-dwelling creature with elongated fore- and middle fingers, in these regards it somewhat resembled a modern-day aye-aye.
Three skeletons have been found at the early Eocene site at Messel Pit, Germany

From Wikipedia article at https://en.wikipedia.org/wiki/Heterohyus, which is released under the Creative Commons Attribution-Share-Alike License 3.0.

Source Data

Source	ID	Link
Global Biodiversity Information Facility ID (GBIF)	4831709	https://www.gbif.org/species/4831709
PaleoBioDB ID (PBDB)	40245	https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=40245

Rank

genus

Taxonomy (GBIF)

Life : Animalia : Chordata : Mammalia : Apatemyidae : Heterohyus

Taxonomy (PBDB)

Life : Animalia : Chordata : Mammalia : Insectivora : Apatemyidae : Heterohyus

Taxonomic Status (GBIF)

accepted

Classification
(PBDB,GBIF)

Rank	Name	Author
-	Eukaryota
-	Opisthokonta	Cavalier-Smith 1987
kingdom	Animalia
-	Triploblastica	Lankester 1877
-	Nephrozoa	Jondelius et al. 2002
-	Deuterostomia	Grobben 1908
phylum	Chordata	Haeckel 1847
subphylum	Vertebrata	Lamarck 1801
superclass	Gnathostomata	Gegenbauer 1874
-	Osteichthyes
-	Sarcopterygii	Romer 1955
subclass	Dipnotetrapodomorpha
subclass	Tetrapodomorpha
-	Tetrapoda
-	Reptiliomorpha	Säve-Söderbergh 1934
-	Anthracosauria	Säve-Söderbergh 1934
-	Batrachosauria
-	Cotylosauria
-	Amniota	Haeckel 1866
-	Synapsida	Osborn 1903
-	Therapsida
infraorder	Cynodontia
-	Epicynodontia	Hopson and Kitching 2001
infraorder	Eucynodontia	Kemp 1982
-	Probainognathia	Hopson 1990
-	Mammaliamorpha	Rowe 1988
-	Mammaliaformes	Rowe 1988
class	Mammalia	Linnaeus 1758
subclass	Tribosphenida
infraclass	Eutheria
order	Insectivora	Bowdich 1821
superfamily	Apatemyoidea
family	Apatemyidae	Matthew 1909
genus	Heterohyus	Gervais 1848-1852

Scientific Name

Heterohyus Gervais, 1848-1852

Name Published In

Zool. Pal. franç., 2, explan. pl. 34, 35, p

Opinions (PBDB)

Name	Rank	Opinion	Evidence	Author
Heterohyus	genus	belongs to Pseudolemuridae	stated without evidence	Schlosser, 1877
Heterohyus	genus	belongs to Apatemyidae	stated with evidence	Simpson, 1940
Heterohyus	genus	belongs to Apatemyinae	stated without evidence	Van Valen, 1967
Heterohyus	genus	belongs to Apatemyidae	stated with evidence	Russell et al., 1979
Heterohyus	genus	belongs to Apatemyidae	stated without evidence	Hooker, 1986
Heterohyus	genus	belongs to Apatemyidae	implied	McKenna and Bell, 1997
Heterohyus	genus	belongs to Apatemyidae	stated with evidence	Silcox et al., 2010

Status (PBDB)

extinct

Taxon Size (PBDB)

First Recorded Appearance

56.0 - 48.6 Ma
Eocene

Last Recorded Appearance

37.2 - 33.9 Ma
Paleogene

Environment

terrestrial (based on Apatemyidae)

Motility

actively mobile (based on Osteichthyes)

Diet

herbivore (based on Apatemyidae)

Reproduction

viviparous (based on Apatemyidae)

Taphonomy

phosphatic (based on Vertebrata)

Primary Reference (PBDB)

M. C. McKenna and S. K. Bell. 1997. Classification of Mammals Above the Species Level

Wikipedia

https://en.wikipedia.org/wiki/Heterohyus

Fossil Distribution

Subtaxa

Name	Status	Common Name(s)	Fossil Occurrences	Oldest	Youngest
Heterohyus (Gervaisyus) ✝ subgenus	listed (PBDB)
Heterohyus armatus ✝ species	accepted (GBIF) listed (PBDB)
Heterohyus henfelderi species	accepted (GBIF)	No associated record in PBDB
Heterohyus morinionensis ✝ species	listed (PBDB)		1	41.3 Ma Eocene	41.3 Ma Eocene
Heterohyus nanus ✝ species	accepted (GBIF) listed (PBDB)		6	41.3 Ma Eocene	37.2 Ma Eocene
Heterohyus pygmaeus ✝ species	accepted (GBIF) listed (PBDB)		1	48.6 Ma Eocene	48.6 Ma Eocene
Heterohyus quercyi ✝ species	accepted (GBIF) listed (PBDB)
Heterohyus sudrei ✝ species	listed (PBDB)		3	41.3 Ma Eocene	38.0 Ma Eocene

Obsolete Names

Name	Source	Taxon Rank	Taxonomy
Heterochiromys Stehlin, 1916	GBIF	genus	Animalia : Chordata : Mammalia : Apatemyidae : *Heterochiromys*
Amphichiromys Stehlin, 1916	GBIF	genus	Animalia : Chordata : Mammalia : Apatemyidae : *Amphichiromys*

Synonymy List

Year	Name and Author
1848	Heterohyus Gervais
1877	Heterohyus Schlosser p. 33
1890	Necrosorex Filhol
1916	Amphichiromys Stehlin
1916	Heterochiromys Stehlin
1940	Heterohyus Simpson p. 203

Year	Name and Author
1967	Heterohyus Van Valen
1979	Heterohyus Russell et al.
1986	Heterohyus Hooker p. 329
1997	Heterohyus McKenna and Bell
2010	Heterohyus Silcox et al.

References

McKenna M. C., Bell S. K. (1997) , Classification of Mammals Above the Species Level, 1-640

Schlosser M. Die Affen, Lemuren, Chiropteren, Insectivoren, Marsupialier, Creodonten und Carnivoren des Europaischen Tertiars, Beitrage zur Paleontologie Osterreich-Ungarns un des Orients 6, 1-224

Simpson G. G. (1940) Studies on the earliest primates, Bulletin of the American Museum of Natural History 77 4, 185-212

Van Valen L. (1967) New Paleocene insectivores and insectivore classification, Bulletin of the American Museum of Natural History 135 5, 217-284

Russell D. E., Godinot M., et al (1979) Apatotheria (Mammalia) de l'Eocène inférieur de France et de Belgique, Bulletin du Muséum National d'Histoire Naturelle, section C: Science de la Terre 1 3, 203-243

Hooker J. J. (1986) Mammals from the Bartonian (middle/late Eocene) of the Hampshire Basin, southern England, Bulletin of the British Museum (Natural History) 39 4, 191-478

Silcox M. T., Bloch J. I., et al (2010) Cranial anatomy of Paleocene and Eocene Labidolemur kayi (Mammalia: Apatotheria), and the relationships of the Apatemyidae to other mammals, Zoological Journal of the Linnean Society 160, 773-825

Nomenclator Zoologicus. A list of the names of genera and subgenera in zoology from the tenth edition of Linnaeus, 1758 to the end of 2004. Digitised by uBio from vols. 1-9 of Neave (ed.), 1939-1996 plus supplementary digital-only volume. http://ubio.org/NomenclatorZoologicus (as at 2006). - via The Interim Register of Marine and Nonmarine Genera

SN2000/McKenna & Bell, 1997 - via The Interim Register of Marine and Nonmarine Genera

SN2000: Brands, S. J. (compiler) 1989-2005. Systema Naturae 2000. Amsterdam, The Netherlands (2006 version). Available online at http://sn2000.taxonomy.nl/. - via The Interim Register of Marine and Nonmarine Genera

as per family - via The Interim Register of Marine and Nonmarine Genera

Zool. Pal. franç., 2, explan. pl. 34, 35, p - via The Interim Register of Marine and Nonmarine Genera

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!

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