Order Afrosoricida
Author
Wilson, Don E.
Author
Reeder, DeeAnn
text
2005
The Johns Hopkins University Press
Baltimore
Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 1
71
81
book chapter
0-8018-8221-4
10.5281/zenodo.7316519
Afrosoricida Stanhope 1998
Families:
2 families with 19 genera and 51 species in 2 suborders:
Suborder
TENRECOMORPHA
Butler 1972
Family
Tenrecidae
Gray 1821
(10 genera with 30 species and 2 subspecies)
Suborder
CHRYSOCHLORIDEA Broom 1915
Family
Chrysochloridae
Gray 1825
(9 genera with 21 species and 27 subspecies)
Discussion:
Traditionally included in the Lipotyphla (= Insectivora
sensu stricto
). Various molecular studies (
Madsen et al., 2001
;
Murphy et al., 2001
a, b
;
Springer et al., 1999
) and syntheses of morphological and molecular data (
Asher et al., 2003
;
Liu et al., 2001
) support a clade containing tenrecs and golden moles, which
Stanhope et al. (1998)
named
Afrosoricida
. This name is inappropriate since this clade does not include soricids, and could lead to confusion with the soricid subgenus
Afrosorex
Hutterer, 1986
. Noting that
Tenrecomorpha
Butler,
1972 may
be a prior, and more explicit name for this clade following Simpson’s (1945) guidelines for naming superfamial taxa,
Bronner et al. (2003)
nevertheless accepted
Afrosoricida
because this name is entrenched in the recent literature.
While
Afrosoricida
is widely used as a name for a tenrec-golden mole clade (e.g.,
Cao et al., 2000
;
de Jong et al., 2003
;
Douady et al., 2002
a,b
;
Hedges, 2001
;
Helgen, 2003
a
;
Scally et al., 2001
;
van Dijk et al., 2001
;
Waddell et al., 2001
), some authors have argued that Tenrecoidea
McDowell, 1958
is the prior valid name for this taxon (e.g.,
Archibald, 2003
;
Asher, 2000
;
Malia et al., 2002
;
Mouchaty, 1999
). Tenrecoidea, however, was first used by
Simpson (1931)
as a corrected superfamily name for Cententoidea, and comprised various "zalambdodont" taxa (
Solenodontidae
,
Potamogalidae
,
Tenrecidae
and extinct
Palaeoryctidae
and
Apternodontidae
) but not chrysochlorids (assigned to a separate superfamily
Chrysochloridea
). McDowell’s (1958) restriction of Tenrecoidea to include only golden moles and tenrecs (thus identical in composition to
Afrosoricida
) implied a fundamentally different grouping concept to that of
Simpson (1931)
; usage of this name arguably violates Simpson’s (1945:33) guidelines (29-30) for reasonable emendation, and also his recommendation that superfamily names (ending in –oidea) should be avoided. Priority, which
Simpson (1945:33)
advocated as a deciding criterion only ".
when other things are about equal
." is thus insufficient to justify acceptance of McDowell’s (1958) revised "Tenrecoidea". Even if accepted, this name should be ascribed to
Simpson, 1931
(
Simpson 1945:32
– guideline 23).
Following
Simpson (1931)
, the term "tenrecoid" has also been widely misused as a general name for a vaguely defined grouping of (extinct and extant) taxa characterized by zalambdodonty, even though it has become clear that some of these were not technically zalambdodont, and that zalambdodonty may have arisen independently several times (e.g.
Broom, 1916
). This further militates against its stricter nomenclatorial use, even at taxonomic ranks below order.
Tenrecomorpha
is also a problematic name for the tenrec-golden mole clade (
c.f
.
Bronner et al., 2003
).
Butler (1972)
used this name for a suborder of the Lipotyphla (Insectivora
sensu stricto
) to accommodate only the
Tenrecidae
, and assigned chrysochlorids to the separate suborder
Chrysochloridea Broom, 1915
.
Butler (1988)
tentatively accepted a common origin of these families, but argued for their early separation.
Eisenberg (1981:63)
showed
Tenrecomorpha
as a separate clade from
Chrysochloridea
, but elsewhere (p. 113) included chrysochlorids in
Tenrecomorpha
without giving any character support. While Mouchaty et al. (2000) and
Waddell and Shelley (2003)
recently used
Tenrecomorpha
in this context, this name has most consistently been used to include only tenrecs (e.g. MacPhee and Novecek, 1993) and consequently is better applied at the subordinal level to separate tenrecids from chrysochlorids, in accordance with both morphological and molecular data suggesting early phylogenetic divergence of these taxa. Following
Bronner et al. (2003)
, we therefore reluctantly accept
Afrosoricida
as the most specific name for a tenrecid-chrysochlorid clade.
The supraordinal affiliation of the
Afrosoricida
remains controversial. Molecular data strongly support an affinity within the Afrotheria, whereas morphological data suggest a closer relationship to lipotyphlans. Lipotyphlan monophyly, however, is only weakly supported by cladistic analyses of morphological data (
Asher, 1999
) and phylogenetic analyses of combined anatomical and molecular data strongly support the inclusion of afrosoricids within Afrotheria (
Asher et al., 2003
)
.