PBDB Taxon

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Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Hemimylacrinae

Insecta - Blattodea - Mylacridae

Taxonomy

Hemimylacrinae was named by Pruvost (1919).

It was reranked as the family Hemimylacridae by Durden (1969).

It was assigned to Mylacroidea by Durden (1969); and to Mylacridae by Pruvost (1919), Becker-Migdisova (1961), Boersma (1975) and Hong (1985).

Subtaxa

Acadiemylacris, Blattina sepulta, Brachymylacris, Hemimylacrella, Hemimylacris (syn. Loxoblatta), Lusitanomylacris, Pinnamylacris, Quasimylacris, Shanxiblatta, Stephanomylacris

Synonyms

Blattina sepulta was named by Scudder (1876). It is an impression. Its type locality is Cossett's Pit, Sydney coalfield, Cape Breton, which is in a Westphalian C/Westphalian D terrestrial shale in Canada.

It was recombined as Petrablattina sepulta by Scudder (1879) and Scudder (1895); it was considered a nomen dubium by Handlirsch (1906), Handlirsch (1922) and Durden (1984).
Acadiemylacris was named by Durden (1972).

It was considered a nomen nudum by Durden (1984).
Acadiemylacris attenuata was named by Durden (1972).

It was considered a nomen nudum by Durden (1972) and Durden (1984).
Quasimylacris was named by Durden (1972).

It was considered a nomen nudum by Durden (1984).
Pinnamylacris was named by Durden (1972).

It was considered a nomen nudum by Durden (1984).
Pinnamylacris elongata was named by Durden (1972).

It was considered a nomen nudum by Durden (1972) and Durden (1984).

Synonymy list

Year	Name and author
1876	Blattina sepulta Scudder p. 89 fig. 1
1879	Petrablattina sepulta Scudder p. 125 figs. Pl 6 fig 7
1895	Petrablattina sepulta Scudder p. 140
1919	Hemimylacrinae Pruvost p. 195
1961	Hemimylacrinae Becker-Migdisova p. 154
1969	Hemimylacridae Durden p. 1173
1972	Acadiemylacris Durden
1972	Acadiemylacris attenuata Durden
1972	Pinnamylacris Durden
1972	Pinnamylacris elongata Durden
1972	Quasimylacris Durden
1975	Hemimylacrinae Boersma p. 43
1985	Hemimylacrinae Hong p. 506

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Ecdysozoa
—	Panarthropoda
phylum	Arthropoda	Latreille 1829
superclass	Hexapoda	Latreille 1825
class	Insecta
—	Dicondylia
—	Paranotalia

Rank	Name	Author
subclass	Pterygota	()
—	Neopterygota	Crampton 1924
infraclass	Neoptera	Martynov 1923
—	Polyneoptera	Martynov 1938
—	Holopandictyoptera
superorder	Dictyoptera	Latreille 1829
order	Blattodea	(Latreille 1810)
family	Mylacridae	()
subfamily	Hemimylacrinae
subfamily	Hemimylacrinae

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. †Hemimylacrinae Pruvost 1919

show all | hide all

G. †Brachymylacris Handlirsch 1906

Subg. †Brachymylacris (Brachymylacris) Handlirsch 1906

Invalid names: Brachymylacris (Brachymylacris) mclellanensis Durden 1972 [nomen nudum]

†Brachymylacris bassleri Cockerell 1918

†Brachymylacris elongata Handlirsch 1906

Invalid names: Brachymylacris cordata Handlirsch 1906 [synonym], Brachymylacris mixta Handlirsch 1906 [synonym]

†Brachymylacris martini Cockerell 1927

†Brachymylacris nodulata Bolton 1934

†Brachymylacris rotundata Handlirsch 1906

†Brachymylacris striolatus Handlirsch 1906

Invalid names: Brachymylacris (Bellamylacris) Durden 1972 [nomen nudum], Brachymylacris (Stellamylacris) Durden 1972 [nomen nudum]

G. †Hemimylacrella Handlirsch 1922

†Hemimylacrella leptophlebiopsis Becker-Migdisova 1961

†Hemimylacrella mammothi Carpenter 1934

G. †Hemimylacris Handlirsch 1906

†Hemimylacris ampla Waterlot 1934

†Hemimylacris bassleri Cockerell 1927

†Hemimylacris clintoniana Scudder 1895

†Hemimylacris ramificata Handlirsch 1906

Invalid names: Loxoblatta Cockerell 1927 [synonym]

G. †Lusitanomylacris Teixeira 1939

†Lusitanomylacris pruvosti Teixeira 1939

G. †Shanxiblatta Hong 1980

†Shanxiblatta striata Hong 1980

†Shanxiblatta suni Hong 1980

G. †Stephanomylacris Teixeira 1941

†Stephanomylacris duriensis Teixeira 1941

†Stephanomylacris zbyszewskii Teixeira 1941

Invalid names: Acadiemylacris Durden 1972 [nomen nudum], Blattina sepulta Scudder 1876 [nomen dubium], Pinnamylacris Durden 1972 [nomen nudum], Quasimylacris Durden 1972 [nomen nudum]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

chitinc

Environment:

terrestrialc

Locomotion:

actively mobilep

Created:

2017-04-17 09:56:18

Modified:

2017-04-17 09:56:18

Source: c = class, p = phylum

References: Kiessling 2004, Bush and Bambach 2015

Age range: base of the Moscovian to the top of the Sakmarian or 315.20000 to 290.10000 Ma

Collections (27 total)

Time interval	Ma	Country or state	Original ID and collection number
Westphalian B	316.9 - 314.6	United Kingdom (Wales)	Mesitoblatta nodulata (151401)
Westphalian B	316.9 - 314.6	USA (Maryland)	Brachymylacris martini (124513)
Moscovian	315.2 - 307.0	USA (Maryland)	Loxoblatta bassleri (124498)
Westphalian C	314.6 - 309.8	Canada (Nova Scotia)	Acadiemylacris attenuata (216815) Brachymylacris belli (216804) Brachymylacris mclellanensis (216823) Brachymylacris mountvillensis (216828) Brachymylacris sp. (216803 216821) Hemimylacridae indet. (216806 216817 216822) Quasimylacris sp. (216816)
Westphalian C - Westphalian D	314.6 - 307.5	USA (Pennsylvania)	Brachymylacris rotundata, Brachymylacris mixta (114456) Hemimylacris ramificata (125764)
Westphalian C - Westphalian D	314.6 - 307.5	USA (Oklahoma)	Metachorus striolatus (125738)
Westphalian C - Westphalian D	314.6 - 307.5	Canada (Nova Scotia)	Blattina sepulta (122607)
Westphalian D	309.8 - 307.5	Canada (Nova Scotia)	Archimylacris sp. (216833) Pinnamylacris elongata, Phyloblatta sp. (216834)
Westphalian D	309.8 - 307.5	USA (Missouri)	Paromylacris clintoniana (125697)
Westphalian D	309.8 - 307.5	France	Hemimylacris ampla (153151)
Westphalian D	309.8 - 307.5	USA (Pennsylvania)	Brachymylacris bassleri (140162) Hemimylacrella mammothi (124504)
Stephanian	307.5 - 300.4	USA (Pennsylvania)	Brachymylacris elongata, Brachymylacris cordata (125960)
Gzhelian	303.7 - 298.9	Russian Federation	Hemimylacrella leptophlebiopsis (124586)
Stephanian C	301.0 - 300.4	Portugal	Stephanomylacris sp., Stephanomylacris duriensis, Stephanomylacris zbyszewskii, Lusitanomylacris pruvosti (152394)
Sakmarian	293.52 - 290.1	China (Shanxi)	Shanxiblatta suni, Shanxiblatta striata (140455)