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Hamilton - Mahantango - Montebello, Pennsylvania, USA

Group	Hamilton
Formation	Mahantango
Member	Montebello
Age:	388 - 383 Ma Devonian
Interval	Givetian
Tectonic Setting	Foreland basin
Lithology	sandstone/siltstone, sandstone, "shale", siltstone/sandstone, "shale"/sandstone, siltstone, "shale"/siltstone, conglomerate/sandstone, siltstone/"shale"
Number of Collections	19
Number of Occurrences	155

Recorded Sample Locations

Location	Region	Stratigraphic Name
Unit 1	Perry County, Pennsylvania, USA	Hamilton - Mahantango - Montebello
Unit 8	Perry County, Pennsylvania, USA	Hamilton - Mahantango - Montebello
Unit 1	Perry County, Pennsylvania, USA	Hamilton - Mahantango - Montebello
Unit 2	Dauphin County, Pennsylvania, USA	Hamilton - Mahantango - Montebello

Associated Units

Stratigraphic Name	Age	Lithology	Occurrence Records
Harrell - Tully	388 - 383 Ma Devonian	claystone, siltstone, "shale"	35
Hamilton - Mahantango - lower shale	388 - 383 Ma Devonian	shale	3
Hamilton - Mahantango - upper shale	388 - 383 Ma Devonian	shale/siltstone, claystone, siltstone, siltstone/claystone, "shale", sandstone/siltstone, siltstone/"shale", sandstone	370

Recorded Fossils

Accepted Name	Type	Hierarchy	Age
Tentaculites sp. genus	6	Animalia : Mollusca : Tentaculitidae : *Tentaculites*	387.7 - 382.7 Ma Devonian
Polychaeta class	3	Animalia : Annelida : Polychaeta	387.7 - 382.7 Ma Devonian
Greenops sp. genus	6	Animalia : Arthropoda : Trilobita : Phacopida : Acastidae : *Greenops*	387.7 - 382.7 Ma Devonian
Trimerus sp. genus	6	Animalia : Arthropoda : Trilobita : Phacopida : Homalonotidae : *Trimerus*	387.7 - 382.7 Ma Devonian
Eldredgeops rana species	7	Animalia : Arthropoda : Trilobita : Phacopida : Phacopidae : Eldredgeops : *Eldredgeops rana*	387.7 - 382.7 Ma Devonian
Athyris spiriferoides species	7	Animalia : Brachiopoda : Rhynchonellata : Athyridida : Athyrididae : Athyris : *Athyris spiriferoides*	387.7 - 382.7 Ma Devonian
Tropidoleptus carinatus species	7	Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Tropidoleptidae : Tropidoleptus : *Tropidoleptus carinatus*	387.7 - 382.7 Ma Devonian
Rhipidomella sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Orthida : Rhipidomellidae : *Rhipidomella*	387.7 - 382.7 Ma Devonian
Rhipidomella vanuxemi species	7	Animalia : Brachiopoda : Rhynchonellata : Orthida : Rhipidomellidae : Rhipidomella : *Rhipidomella vanuxemi*	387.7 - 382.7 Ma Devonian
Camarotoechia sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Camarotoechiidae : *Camarotoechia*	387.7 - 382.7 Ma Devonian
Camarotoechia prolifica species	7	Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Camarotoechiidae : Camarotoechia : *Camarotoechia prolifica*	387.7 - 382.7 Ma Devonian
Cupularostrum congregata species	7	Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Trigonirhynchiidae : Cupularostrum : *Cupularostrum congregata*	387.7 - 382.7 Ma Devonian
Allanella tullius species	7	Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Adolfiidae : Allanella : *Allanella tullius*	387.7 - 382.7 Ma Devonian
Ambocoelia umbonata species	7	Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Ambocoeliidae : Ambocoelia : *Ambocoelia umbonata*	387.7 - 382.7 Ma Devonian
Megakozlowskiella sculptilis species	7	Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Cyrtinopsidae : Megakozlowskiella : *Megakozlowskiella sculptilis*	387.7 - 382.7 Ma Devonian
Paraspirifer sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Delthyrididae : *Paraspirifer*	387.7 - 382.7 Ma Devonian
Mucrospirifer mucronatus species	7	Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Mucrospiriferidae : Mucrospirifer : *Mucrospirifer mucronatus*	387.7 - 382.7 Ma Devonian
Mediospirifer sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Spinocyrtiidae : *Mediospirifer*	387.7 - 382.7 Ma Devonian
Mediospirifer audaculus species	7	Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Spinocyrtiidae : Mediospirifer : *Mediospirifer audaculus*	387.7 - 382.7 Ma Devonian
Spinocyrtia sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Spinocyrtiidae : *Spinocyrtia*	387.7 - 382.7 Ma Devonian
Spinocyrtia granulosa species	7	Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Spinocyrtiidae : Spinocyrtia : *Spinocyrtia granulosa*	387.7 - 382.7 Ma Devonian
Spirifer sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Spiriferidae : *Spirifer*	387.7 - 382.7 Ma Devonian
Cyrtina hamiltonensis species	7	Animalia : Brachiopoda : Rhynchonellata : Spiriferinida : Cyrtinidae : Cyrtina : *Cyrtina hamiltonensis*	387.7 - 382.7 Ma Devonian
Centronella sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Centronellidae : *Centronella*	387.7 - 382.7 Ma Devonian
Subrensselandia sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Stringocephalidae : *Subrensselandia*	387.7 - 382.7 Ma Devonian
Schuchertella sp. genus	6	Animalia : Brachiopoda : Strophomenata : Orthotetida : Schuchertellidae : *Schuchertella*	387.7 - 382.7 Ma Devonian
Devonochonetes sp. genus	6	Animalia : Brachiopoda : Strophomenata : Productida : Chonetidae : *Devonochonetes*	387.7 - 382.7 Ma Devonian
Devonochonetes coronatus species	7	Animalia : Brachiopoda : Strophomenata : Productida : Chonetidae : Devonochonetes : *Devonochonetes coronatus*	387.7 - 382.7 Ma Devonian
Devonochonetes scitulus species	7	Animalia : Brachiopoda : Strophomenata : Productida : Chonetidae : Devonochonetes : *Devonochonetes scitulus*	387.7 - 382.7 Ma Devonian
Longispina sp. genus	6	Animalia : Brachiopoda : Strophomenata : Productida : Chonetidae : *Longispina*	387.7 - 382.7 Ma Devonian
Retichonetes sp. genus	6	Animalia : Brachiopoda : Strophomenata : Productida : Chonetidae : *Retichonetes*	387.7 - 382.7 Ma Devonian
Spinulicosta spinulicosta species	7	Animalia : Brachiopoda : Strophomenata : Productida : Productellidae : Spinulicosta : *Spinulicosta spinulicosta*	387.7 - 382.7 Ma Devonian
Douvillina sp. genus	6	Animalia : Brachiopoda : Strophomenata : Strophomenida : Douvillinidae : *Douvillina*	387.7 - 382.7 Ma Devonian
Protoleptostrophia perplana species	7	Animalia : Brachiopoda : Strophomenata : Strophomenida : Leptostrophiidae : Protoleptostrophia : *Protoleptostrophia perplana*	387.7 - 382.7 Ma Devonian
Leptaena rhomboidalis species	7	Animalia : Brachiopoda : Strophomenata : Strophomenida : Rafinesquinidae : Leptaena : *Leptaena rhomboidalis*	387.7 - 382.7 Ma Devonian
Pholidostrophia sp. genus	6	Animalia : Brachiopoda : Strophomenata : Strophomenida : Strophodontidae : *Pholidostrophia*	387.7 - 382.7 Ma Devonian
Bryozoa phylum	2	Animalia : Bryozoa	387.7 - 382.7 Ma Devonian
Sulcoretepora sp. genus	6	Animalia : Bryozoa : Stenolaemata : Cystoporida : Cystodictyonidae : *Sulcoretepora*	387.7 - 382.7 Ma Devonian
Fenestella sp. genus	6	Animalia : Bryozoa : Stenolaemata : Fenestrida : Fenestellidae : *Fenestella*	387.7 - 382.7 Ma Devonian
Polypora sp. genus	6	Animalia : Bryozoa : Stenolaemata : Fenestrida : Fenestellidae : *Polypora*	387.7 - 382.7 Ma Devonian
Rugosa subclass	3.3	Animalia : Cnidaria : Anthozoa : Rugosa	387.7 - 382.7 Ma Devonian
Favosites sp. genus	6	Animalia : Cnidaria : Anthozoa : Favositidae : *Favosites*	387.7 - 382.7 Ma Devonian
Pleurodictyum sp. genus	6	Animalia : Cnidaria : Anthozoa : Micheliniidae : *Pleurodictyum*	387.7 - 382.7 Ma Devonian
Crinoidea class	3	Animalia : Echinodermata : Crinoidea	387.7 - 382.7 Ma Devonian
Cypricardinia indenta species	7	Animalia : Mollusca : Bivalvia : Carditida : Cardiniidae : Cypricardinia : *Cypricardinia indenta*	387.7 - 382.7 Ma Devonian
Modiomorpha concentrica species	7	Animalia : Mollusca : Bivalvia : Modiomorphida : Modiomorphidae : Modiomorpha : *Modiomorpha concentrica*	387.7 - 382.7 Ma Devonian
Palaeoneilo sp. genus	6	Animalia : Mollusca : Bivalvia : Nuculanida : Malletiidae : *Palaeoneilo*	387.7 - 382.7 Ma Devonian
Actinopteria sp. genus	6	Animalia : Mollusca : Bivalvia : Ostreida : Pterineidae : *Actinopteria*	387.7 - 382.7 Ma Devonian
Actinopteria boydi species	7	Animalia : Mollusca : Bivalvia : Ostreida : Pterineidae : Actinopteria : *Actinopteria boydi*	387.7 - 382.7 Ma Devonian
Cornellites sp. genus	6	Animalia : Mollusca : Bivalvia : Ostreida : Pterineidae : *Cornellites*	387.7 - 382.7 Ma Devonian
Leptodesma sp. genus	6	Animalia : Mollusca : Bivalvia : Ostreida : Pterineidae : *Leptodesma*	387.7 - 382.7 Ma Devonian
Ptychopteria sp. genus	6	Animalia : Mollusca : Bivalvia : Ostreida : Pterineidae : *Ptychopteria*	387.7 - 382.7 Ma Devonian
Aviculopecten sp. genus	6	Animalia : Mollusca : Bivalvia : Myalinida : Myalinidae : *Aviculopecten*	387.7 - 382.7 Ma Devonian
Pterinopecten sp. genus	6	Animalia : Mollusca : Bivalvia : Pectinida : Pterinopectinidae : *Pterinopecten*	387.7 - 382.7 Ma Devonian
Spyroceras sp. genus	6	Animalia : Mollusca : Cephalopoda : Pseudorthoceratidae : *Spyroceras*	387.7 - 382.7 Ma Devonian
Bellerophontidae family	5	Animalia : Mollusca : Gastropoda : Bellerophontidae	387.7 - 382.7 Ma Devonian
Platyostoma euomphaloides species	7	Animalia : Mollusca : Gastropoda : Platyceratidae : Platyostoma : *Platyostoma euomphaloides*	387.7 - 382.7 Ma Devonian

References

Ellison R. L. (1965) Stratigraphy and Paleontology of the Mahantango Formation in south-central Pennsylvania, Pennsylvania Geological Survey Bulletin G48, 1-298

Rode A. L., Lieberman B. S. (2004) Using GIS to unlock the interactions between biogeography, environment, and evolution in middle and Late Devonian brachiopods and bivalves, Palaeogeography, Palaeoclimatology, Palaeoecology 211 3-4, 345-359

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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