Norway Point Formation
{{Infobox rockunit
| name = Norway Point Formation
| image =
| caption =
| type = Geological formation
| age = {{fossil range|Givetian|Givetian|Middle Devonian (Givetian)}}
| period = Devonian
| prilithology =
| otherlithology =
| namedfor =
| namedby =
| region = {{Flag|Michigan}}
| country = {{Flag|United States}}
| coordinates =
| unitof = Traverse Group
| subunits =
| underlies =
| overlies = Four Mile Dam Formation
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The Norway Point Formation is a geologic formation in Michigan. It preserves fossils dating back to the middle Devonian period.
File:An examination of the Devonian fishes of Michigan fig-1-full.png
Fossil content
=Vertebrates=
class="wikitable" align="center" | ||||
colspan="6" align="center" | Acanthodians | ||||
---|---|---|---|---|
Genus | Species | Presence
!Material | Notes | Images |
Oracanthus
|O. sp. | "Four Mile Dam, 6 kilometers northwest of Alpena, Alpena County, Michigan".{{Cite journal |last1=Stack |first1=Jack |last2=Sallan |first2=Lauren |date=2018-09-20 |title=An examination of the Devonian fishes of Michigan |url=https://www.researchgate.net/publication/327778213 |journal=PeerJ |volume=6 |issue=2 |pages=e5636 |doi=10.7717/peerj.5636|pmid=30258725 |pmc=6151260 |doi-access=free }} |"A single spine (UMMP 23495)". | | |
class="wikitable" align="center" | ||||
colspan="6" align="center" | Conodonts | ||||
---|---|---|---|---|
Genus | Species | Presence
!Material | Notes | Images |
rowspan=2|Acodina
|A. formosa | |Also found in the Detroit River, Traverse, Dundee, Bell, Alpena and Four Mile Dam formations. | | ||||
A. lanceolata
| |Also found in the Traverse Formation. | | ||||
Belodella
|B. devonicus | |Also found in the Detroit River, Traverse, Antrim, Alpena and Four Mile Dam formations. | | ||||
Hindeodella
|H. germana | |Also found in the Detroit River, Traverse and Antrim formations. | | ||||
rowspan="3" |Icriodus
|I. cymbiformis | |Also found in the Detroit River, Traverse, Antrim, Ferron Point, Genshaw, Alpena and Thunder Bay formations. | | ||||
I. expansus
| |Also found in the Detroit River, Traverse, Antrim, Lucas, Anderdon, Dundee, Bell, Ferron Point, Genshaw, Alpena, Potter Farm and Thunder Bay formations. | | ||||
I. latericrescens latericrescens
| |Also found in the Traverse, Bell, Ferron Point, Genshaw, Newton Creek, Alpena, Four Mile Dam, Potter Farm and Thunder Bay formations. | | ||||
Ligonodina
|L. falciformis | |Also found in the Traverse Formation and Alpena Limestone. | | ||||
Ozarkodina
|O. willsi | |Also found in the Detroit River, Traverse, Antrim, Dundee, Alpena and Four Mile Dam formations. | | ||||
rowspan=2|Polygnathus
|P. linguiformis linguiformis | |Also found in the Detroit River, Traverse, Antrim, Dundee, Bell and Alpena formations. | | ||||
P. varcus
| |Also found in the Traverse, Antrim, Alpena, Four Mile Dam and Thunder Bay formations. | | ||||
Synprioniodina
|S. regularis | |Also found in the Detroit River, Traverse, Antrim, Dundee, Bell and Alpena formations. | |
=Invertebrates=
{{Paleobiota-key-compact}}
class="wikitable" align="center" | ||||
colspan="6" align="center" | Brachiopods | ||||
---|---|---|---|---|
Genus | Species | Presence
!Material | Notes | Images |
Chonetes
|C. pachyactis | | | | ||||
Leptalosia
|L. radicans | |Also found in the Gravel Point, Alpena, Four Mile Dam, Genshaw, Arkona and Hungry Hollow formations. | | ||||
Pentamerella
|P. pericosta | |Also found in the Beebe School, Widder, Hungry Hollow and Logansport formations. | | ||||
Pholidostrophia
|P. ovata | |Also found in the upper Widder Formation. | | ||||
Protoleptostrophia
|P. lirella | |Also found in the Four Mile Dam Formation and Alpena Limestone. | | ||||
Schuchertella
|S. lirella |At Thunder Bay River. | | | | ||||
Sphenophragmus
|S. nanus | | Also found in the Beebe School, Ludlowville, Wanakah and Widder formations. | | ||||
Strophodonta
|S. alpenensis | |A strophomenid. | | ||||
Truncalosia
|T. gibbosa | |Also found in the Genshaw, Alpena, Gravel Point, Petoskey, Potter Farm and Arkona formations, and the Hamilton Group. | | ||||
Tylothyris
|T. subvaricosa | |Also found in the Cedar Valley, Milwaukee, Mineola, Bell, Rockport Quarry, Ferron Point, Genshaw, Alpena, Gravel Point and Potter Farm formations. | |
class="wikitable" align="center" | ||||
colspan="6" align="center" | Corals | ||||
---|---|---|---|---|
Genus | Species | Presence
!Material | Notes | Images |
rowspan=2|Aulocystis
|A. commensalis | |Also found in the Ipperwash Limestone and Wanakah Shale. | | ||||
A. stummi
| Thunder Bay River below Four Mile Dam, Alpena County, Michigan. | | | |
class="wikitable" align="center" | ||||
colspan="6" align="center" | Ostracods | ||||
---|---|---|---|---|
Genus | Species | Presence
!Material | Notes | Images |
rowspan="3" |Aechmina
|A. choanobasota | | | | ||||
A. sp. A
| | | | ||||
A. sp. B
| | | | ||||
rowspan="3" |Arcyzona
|A. aperticarinata | | | | ||||
A. diademata
| | | | ||||
A. sp.
| | | | ||||
rowspan=3|Barychilina
|B. embrithes | | | | ||||
B. labyrinthea
| | | | ||||
B. sp.
| | | | ||||
rowspan=2|Birdsallella
|B. delawarensis | | | | ||||
B. tumida
| | | | ||||
rowspan=3|Bythocypris
|B. devonica borealis | | | | ||||
B. parsonia
| | | | ||||
B. subquadrata
| | | | ||||
Coelonella
|C. scapha | | | | ||||
Ctenoloculina
|C. cicatricosa | | | | ||||
Dizygopleura
|D. euglyphea | | | | ||||
rowspan="3" |Euglyphella
|E. compressa | | | | ||||
E. sigmoidalis
| | | | ||||
E. simplex
| | | | ||||
Eukloedenella
|E. doverensis | |One female left valve and one male left valve. | | | ||||
Falsipollex
|F. equipapillatus | | | | ||||
Glyptopleura
|G. bipunctata | | | | ||||
Halliella
|H. bellipuncta | | | | ||||
rowspan="2" |Healdia
|H. gibba | | | | ||||
H. sp.
| | | | ||||
rowspan="6" |Hollinella
|H. ampla | | | | ||||
H. inclinisulcata
| | | | ||||
H. labrosa
| | | | ||||
H. tendilobata
| | | | ||||
H. sp. A
| |"Two carapaces, Nos. 27352 and 27353". | | | ||||
H. sp. B
| |"A male carapace, No. 27354". | | | ||||
Hyphasmaphora
|H. textiligera | | | | ||||
rowspan="2" |Jenningsina
|J. catenulata | | | | ||||
J. scalpta
| | | | ||||
Lucasella
|L. mundula | | | | ||||
Monoceratina
|M. casei | |"2 carapaces, Nos. 27374 and 27375". | | | ||||
rowspan="2" |Octonaria
|O. crescentiformis | | | | ||||
O. quadricostata
| | | | ||||
Parabolbina
|P. acinina | | | | ||||
rowspan="2" |Ponderodictya
|P. punctulifera | | | | ||||
P. sp.
| |May be an early instar of P. punctulifera. | | ||||
Punctoprimitia
|P. subaequalis | |1 right valve and 4 left valves. | | | ||||
rowspan="6" |Quasillites
|Q. binodosus | | | | ||||
Q. jubatus
| | | | ||||
Q. lobatus
| | | | ||||
Q. obliquus
| | | | ||||
Q. cf. Q. ornatus
| | | | ||||
Q. ornatus
| |3 carapaces and a right valve. | | | ||||
Reticestus
|R. acclivitatus | | | | ||||
rowspan="2" |Ropolonellus
|R. papillatus | | | | ||||
R. plenus
| | | | ||||
Ruptivelum
|R. bacculatum | | | | ||||
rowspan="2" |Subligaculum
|S. biorthogonium | | | | ||||
S. trullatum
| |2 male left valves and a broken female right valve. | | | ||||
Tetrasacculus
|T. paeneloculatus | | | | ||||
rowspan="2" |Ulrichia
|U. fragilis | |1 carapace and 2 left valves. | | | ||||
U. spinifera
| | | |
class="wikitable" align="center" | ||||
colspan="6" align="center" | Trilobites | ||||
---|---|---|---|---|
Genus | Species | Presence
!Material | Notes | Images |
Dechenella
|D. (Basidechenella) sp. A | |"Nos. 25506, 28719, 28720, and 28721".{{Cite journal|last=Stumm|first=Erwin|date=1953|title=Trilobites of the Devonian Traverse Group of Michigan|url=https://deepblue.lib.umich.edu/bitstream/handle/2027.42/48269/ID108.pdf?sequence=2|journal=University of Michigan Press - Museum of Paleontology}} | | | ||||
Dipleura
|D. dekayi |"Shales just above the Spinocyrtia zone". | |Also found in the Thunder Bay Limestone. | ||||
Eldredgeops
| |Originally reported as Phacops rana. Also found in the Hamilton, Hungry Hollow, Widder, Plum Brook, Prout, Ten Mile Creek, Alpena, Four Mile Dam and Gravel Point formations. | ||||
Greenops
|G. aequituberculatus | |Also found in the Gravel Point Formation and Dock Street clay of the Four Mile Dam Formation. | | ||||
style="background:#f3e9f3;" |Phacops
|style="background:#fbdddb;" |P. rana |style="background:#fbdddb;" | |style="background:#fbdddb;" | |style="background:#fbdddb;" |Moved to the genus Eldredgeops. |style="background:#fbdddb;" | |
See also
{{Portal|Earth sciences|Michigan|Paleontology}}
References
{{reflist}}
- {{cite web|title= Fossilworks: Gateway to the Paleobiology Database|author= ((Various Contributors to the Paleobiology Database))|url= https://www.fossilworks.org|access-date= 17 December 2021|df= dmy-all}}
{{Use dmy dates|date=April 2017}}
Category:Devonian southern paleotemperate deposits
{{Michigan-geologic-formation-stub}}