PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Acutimitoceras

Cephalopoda - Ammonoida - Gattendorfiidae

Taxonomy

Acutimitoceras was named by Librovitch (1957) [Sepkoski's age data: C Tour-l Sepkoski's reference number: 1042]. It is not extant.

It was assigned to Goniatitida by Sepkoski (2002); to Acutimitoceratinae by Korn (2006); and to Gattendorfiidae by Furnish et al. (2009).

Species

A. (Stockumites), A. acutum, A. hilarum, A. hollardi, A. intermedium, A. mfisense, A. occidentale, A. posterum, A. subbilobatum

Species lacking formal opinion data

A. carinatum, A. kleinerae, A. mugodzharense, A. prorsum

Year	Name and author
1957	Acutimitoceras Librovitch
2002	Acutimitoceras Sepkoski
2006	Acutimitoceras Korn
2009	Acutimitoceras Furnish et al. p. 6

part	N	mean	minimum	maximum	median	s.d.
shell height	28	7.79	1.43	29.9	7.60	5.48
shell diameter	28	14.5	3.81	50.0	14.1	9.07
shell inflation	28	0.756	0.160	1.92	0.840	0.380

Age range: base of the Late/Upper Famennian to the top of the Hastarian or 364.70000 to 353.80000 Ma

Collections (30 total)

Time interval	Ma	Country or state	Original ID and collection number
Famennian	372.2 - 358.9	Germany	A. kleinerae, A. carinatum, A. stockumense, A. procedens, A. sp., A. intermedium, A. subbilobatum (38647)
Famennian	372.2 - 358.9	France (Alsace)	A. sp., A. intermedium, A. subbilobatum (38667)
Famennian	372.2 - 358.9	Germany (Nordrhein-Westfalen)	A. prorsum, A. sp., A. intermedium (38657) A. sp., A. subbilobatum, A. acutum (38643)
Famennian	372.2 - 358.9	Germany (Bayern)	A. kleinerae, A. carinatum, A. prorsum, A. sp., A. intermedium, A. subbilobatum (38664)
Famennian	372.2 - 358.9	Algeria	A. sp. (236895)
Famennian	372.2 - 358.9	Germany (Thuringen)	A. sp. (38660)
Late/Upper Famennian	364.7 - 360.7	Austria	A. carinatum, A. kleinerae, A. prorsum, A. intermedium (38608)
Late/Upper Famennian	364.7 - 360.7	Morocco	A. intermedium, A. subbilobatum (170860)
Late/Upper Famennian	364.7 - 360.7	United Kingdom (England)	Imitoceras intermedium (234932)
Hastarian	358.9 - 353.8	China (Guizhou)	A. kleinerae, A. subbilobatum (218974) A. mugodzharense, A. undulatum, A. subbilobatum (218972)
Hastarian	358.9 - 353.8	Germany (Nordrhein-Westfalen)	A. kleinerae, A. depressum, A. undulatum, A. convexum, A. antecedens, A. sphaeroidale, A. multisulcatum, A. gracile, A. exile, A. simile, A. sp., A. intermedium, A. subbilobatum, A. acutum (38646)
Hastarian	358.9 - 353.8	Austria	A. kleinerae, A. convexum, A. sphaeroidale, A. sp., A. intermedium, A. subbilobatum, A. acutum (38612) A. sp. (38614) A. sp., A. intermedium, A. acutum (38610) A. sp., A. subbilobatum (38615) A. sphaeroidale (38616)
Kinderhookian	358.9 - 352.0	USA (Missouri)	Stockumites sp. (46553)
Tournaisian	358.9 - 346.7	China	A. sp. (162313)
Tournaisian	358.9 - 346.7	France (Alsace)	A. sp. (38668)
Tournaisian	358.9 - 346.7	Germany (Bayern)	A. kleinerae, A. subacre, A. sp., A. intermedium, A. subbilobatum, A. acutum (38665)
Tournaisian	358.9 - 346.7	Germany (Thuringen)	A. sp., A. acutum (38662)
Tournaisian	358.9 - 346.7	Morocco	A. hollardi, A. mfisense (66285) A. hollardi, A. posterum, A. mfisense, A. occidentale (66287) A. sp., A. intermedium, A. subbilobatum (66284) A. sp., A. intermedium, A. subbilobatum, A. mfisense, A. occidentale (66270)
Tournaisian	358.9 - 346.7	Germany	Imitoceras intermedium, Imitoceras acutum (64681)
Tournaisian	358.9 - 346.7	China (Xinjiang)	A. sp. (172430)
Mississippian	358.9 - 323.2	USA (Missouri)	A. sp. (211321)