Genus: Longirostria emend ARKHANGELSKY, 1998
Etymology: Latin, Longus, “long” and Latin, rostrum, “snout”: Long snout.
= Subgenus: Longirostria ARKHANGELSKY, 1998

Species: australis (M'COY, 1869) emend ARKHANGELSKY, 1998
Etymology: In reference to Australia, the country of origin.
= Platypterygius (Longirostria) australis (M'COY, 1869) McGOWAN, 1972 emend ARKHANGELSKY, 1998
= Longirostria australis (M'COY, 1869) McGOWAN, 1972 emend ARKHANGELSKY, 1998
= Platypterygius australis (M'COY, 1869) McGOWAN, 1972
= Platypterygius Longirostria longmani (WADE, 1988) ARKHANGELSKY, 1998
Etymology:
= ?Ichthyosaurus australis M'COY, 1867
= Ichthyosaurus australis M'COY, 1869
= ?Myopterygius australis (M'COY, 1869) HUENE, 1922
= Platypterygius longmani WADE, 1988

Neotype: MVP 12989

Locality: Telmon lease, Dunluce Station, near Hughenden, central Queensland State, Australia.

Horizon: Toolebuc Formation, Rooling Downs Group.

Biostratigraphy:

Age: Mid-Upper Albian Stage, Lower Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material: Articulated skull (lacking only anterior-most snout) including dermocranium (left side obscured by overlying bones and matrix), palate, basacrainium (both largely obscured), reigh tsclerotic ring, hyoids, mandible (lacking anterior portion of dentaries) and almost complete skeleton.

Note: old Holotype: QMF 2453: Numerous centra (now lost, as per ZAMMIT, 2010)

Referred material:

QM F2451: Fragmentary skull.

ZAMMIT, NORRIS & KEAR, 2010 (published in 2011)

QM F18307: Partial scapula.

 

LONGMAN, 1922

Paratype: QMF 551

Locality: Found at Galah Creek, 12 miles from Hughenden, Central Queensland State, Australia.

Horizon: Toolebuc Formation, Rooling Downs Group [Rolling Downs Formation, (Wallumbilla Formation?)].

Biostratigraphy:

Age: Mid-Upper Albian Stage, Lower Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material: Articulated skull (lacking only anterior-most snout) including dermocranium and basicranium, palate largly obscured by overlying bones and matrix, hyoids, mandible (lacking anterior portion of dentaries).

 

FLETCHER, 1971

Plastohypotype: 1031

Locality: Base of Walker’s Table Mountain, Flinders River, Queensland State, Australia.

Horizon: Toolebuc Formation, Rooling Downs Group.

Biostratigraphy:

Age: Mid-Upper Albian Stage, Lower Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material: (portion of 9 vertebrae)

Plastohypotype: F. 4492

Locality: Marathon Station, Flinders River, North Central Queensland State, Australia.

Horizon: Toolebuc Formation, Rooling Downs Group.

Biostratigraphy:

Age: Mid-Upper Albian Stage, Lower Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material: (cast of trunk vertebra)

ZAMMIT, NORRIS & KEAR, 2010 (published in 2011)

KKM R519: 44 centra, complete (?) left hind limb, right femur, patial right hind limb.

QM F18906: Left and right hind limbs.

= cf. Platypterygius longmani KEAR, 2002

Locality: Casuarina Beach, north of Darwin, Northern Territory, Australia.

Horizon: Darwin Formation.

Biostratigraphy:

Age: Aptian or Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Late Early Cretaceous.

Material:

SAM P35039: 4 associated mid-posterior trunk centra.

SAM P35426: 2 articulated anterior trunk centa.

SAM P35427: 3 associated anterior tail stock centra.

SAM P35429: 2 associated sections of 8 and 4 articulated anterior? Tail stock centra.

SAM P35430: 9 associated anterior tail stock centra of a juvenile.

WADE, 1988

Paratypes

Locality: Flinders River, near O'Connell Creek, Australia.

Horizon: Limestone nodule in gypseous shale, Allaur Mudstone.

Biostratigraphy:

Age: Early Cretaceous.

Material:

MVP 12992, 22653-54, 22656-61: Fragmentary skulls and fragmentary skeletons.

MVP 12990: Skull fragment.

 

LEES, 1986

Locality: Western Queensland State, Australia.

Horizon: Unknown.

Biostratigraphy:

Age: Early Cretaceous.

Material:

QM F1500:

 

Locality: Big hole, Flinders Ranch, Boree Park Station, north Richmond, Queensland State, Australia.

Horizon: Toolebuc Formation.

Biostratigraphy:

Age: Albian Stage, Lower Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material:

QM F12313

QM F12317:

 

Lost

Locality: Western Queensland State, Australia.

Horizon:

Biostratigraphy:

Age: Early Cretaceous.

Material: 2 portions of the skull, teeth, some dorsal vertebrae, paddles and a humerus, radius, and ulna.

 

JACK & ETHERIDGE, 1892

Locality: Richmond Downs area of northern Queensland State, Australia.

Horizon: Tambo Formation.

Biostratigraphy:

Age: Upper Albian Stage, Lower Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material:

Snout portion of skull and vertebrae.

Portion of a skull showing the orbit with sclerotic plates, and a large number of disjointed centrums of vertebrae.

Disarticulated centrum.

 

KEAR, 2001, 2006

Locality: ‘Dunraven’ Station, near Hughenden, north-central Queensland State, Australia.

Horizon: Toolebuc Formation, Rooling Downs Group.

Biostratigraphy:

Age: Mid-Upper Albian Stage, Lower Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material:

AM F98273: A near complete juvenile skull including in excess of 100 well preserved functional and replacement teeth from both upper and lower jaws. Articulated skull including dermocranial elements from right and anterior portion of left-hand-side (premaxillae lacking distal ends), complete palate, basicranium, sclerotic rings, hyoids, complete right and partial left mandible (right dentary lacking distal end).
Note: A single anterior dentary tooth with caries (tooth decay).

AM F90847-AM F 90850: Incomplete basicranium, sapes, and posterior portions of pterygoids.

AM F 105835: Articulated anterior snout and mandible (including distal ends).

AM F116939: Articulated skull (missing section anterior to naris) including posterior dermocranium, posterior portions of pterygoids, complete basicranium, sclerotic rings, hyoids, an dposterior section of mandible.

AM F116940: Articulated skull (lacking anterior snout), including dermocranium, palate, complete basicranium, sclerotic ring.

AM F15339: Articulated skull roof (missing section anterior to naris) and quadrates.

ZMMIT, NORRIS & NEAR, 2010 (published in 2011)

AM F97620: Left humerus missing part of proximal head.

 

Locality: Hughenden, north-central Queensland State, Australia.

Horizon: Toolebuc Formation, Rooling Downs Group.

Biostratigraphy:

Age: Mid-Upper Albian Stage, Lower Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material:

AM FL13: Disarticulated partial skull including some dermocranial and palatal elements.

McGOWAN, 1972

Locality: Near Flanders River, Stewart Park, near Richmond, Queensland State, Australia.

Horizon: Toolebuc Formation.

Biostratigraphy:

Age: Early Cretaceous.

Material:

QMA F3348 also known as QMA F3388: Deformed scapula, humerus, and partial forelimb.

 

McGOWAN

Locality: Marathon, Northwestern Queensland State, Australia.

Horizon: Allaru Formation.

Biostratigraphy:

Age: Early Cretaceous.

Material:

QMF. 2297: Incomplete and somewhat weathered fore fin.

 

MURRY, 1985

Locality: Nightcliff Locality, longitude 130?51.1’E, latitude 12?22.5’S, near Darwin suburb of Nightcliff, Queensland Artesian Basin, Northern Territory, Australia.

Horizon: Mullaman Beds.

Biostratigraphy:

Age: Upper Albian Stage, Lower Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material:

Number: Not given: Fragmentary skull and fragmentary skeleton.

Locality: Casuarian Beach Locality, longitude 130?52.5’E, latitude 12?20.6’S, approximately 5.0 km NNE of the mouth of Rapid Creek, Nightcliff, Queensland Artesian Basin, Northern Territory, Australia.

Horizon: Darwin member, Bathurst Island Formation.

Biostratigraphy:

Age: Upper Albian Stage, Lower Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material:

Number: Not given: Natural casts of vertebral centar and some poorly preserved probable pectoral girdle elements, scapulae and coracoid.

 

Locality: Fannie Bay Locality, longitude 130?49.9’E, latitude 12?25.5’S, near Darwin, Queensland Artesian Basin, Northern Territory, Australia.

Horizon: Mullaman Beds.

Biostratigraphy:

Age: Upper Albian Stage, Lower Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material:

Number: Not given: Vertebrae.

 

TEICHERT & MATHESON, 1944

Locality: Dandaragan, near Perth, Western Australia State, Australia.

Horizon:

Biostratigraphy:

Age: Lower Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch or Santonian Stage, Lower Senonian Subepoch, Lower Gulf Epoch, Early Cretaceous.

Material:

Number: Not given: Centrum.

 

WADE, 1984

Locality: Kilterry station, near Julia Creek, north of Flinders River, Queensland State, Australia.

Horizon: Toolebuck Formation.

Biostratigraphy:

Age: Albian Stage, Upper Gallic Subepoch, Early Cretaceous Epoch, Early Cretaceous.

Material:

QMF 12314: Incomplete coracoid and partial scapula.

ZAMMIT, NORRIS & KEAR, 2010 (published in 2011)

QM F40822: Complete right and incomplete left coracoid.

QM F40823: Incomplete coracoid.

 

Locality: Stewart Park, near Richmond, Queensland State, Australia.

Horizon:

Biostratigraphy:

Age: Early Cretaceous.

Material:

QM F 3348: Proximal half of the right fore limb.

QMF 3389: Fin fragment.

 

Locality: Ashgrove Station, Brixton, Queensland State, Australia.

Horizon: Allaru Formation.

Biostratigraphy:

Age: Early Cretaceous.

Material:

QMF 2299: Coracoid symphysis and right humerus.

 

Locality: Lydia Downs station, near Nelia, Australia

Horizon: Toolebuc Formation (Limestone of either Formation.)

Biostratigraphy:

Age: Early Cretaceous.

Material:

QMF 2573: Left humerus with partial fin..

 

WADE, 1988, KEAR, BOLES, & SMITH, 2003

Locality: Canary, SE of Boulia, NW Queensland State, Australia.

Horizon: Toolebuck Formation.

Biostratigraphy:

Age: Albian Stage, Upper Gallic Subepoch, Early Cretaceous Epoch, Early Cretaceous.

Material:

QMF 16811: Fragmentary skeleton.
Note: A hatchling-sized protostegid turtle, an enantiornithine birds, skeletal elements from possibly a Cooyoo or Pachyrhizodus fish, and a phosphatic nodules found in the stomach region.

QMF 16812: Juvenile within QMF 16811.

QMF 13261:

 

Locality: Abranch of the Flinders Ranch and Boree Park Station, North Richmond, Queensland State, Australia.

Horizon: Toolebuck Formation.

Biostratigraphy:

Age: Albian Stage, Upper Gallic Subepoch, Early Cretaceous Epoch, Early Cretaceous.

Material:

QMF 10686: Partial skull, vertebral centra, and partial forelimbs

 

Locality: Near Flinders River, near O'Connell Creek, Australia.

Horizon: Allaru Mudstone.

Biostratigraphy:

Age: Early Cretaceous.

Material:

MVP 12991: Forefin.

 

ZAMMIT, NORRIS & KEAR, 2010 (published in 2011)

Locality: Boremba Station, Queensland State, Australia.

Horizon: Toolebuc Formation.

Biostratiraphy:

Age: Albian Stage, Upper Gallic Subepoch, Early Cretaceous Epoch, Early Cretaceous.

Material:

QM F34871: Possible clivicle element.

 

Locality: Warra Station, Boulia, Queensland State, Australia.

Horizon: Toolebuc Formation.

Biostratiraphy:

Age: Albian Stage, Upper Gallic Subepoch, Early Cretaceous Epoch, Early Cretaceous.

Material:

QM F40821: Right ischiopubis and possible clavicle element.

SAM P44323: Unprepared material, including skull, anterior vertebrae, pectoral girdle elements, and forelimb elements.

 

= ?Ichthyosaurus marathonensis ETHERIDGE, 1888
Etymology: In reference to Marathon, Western Queensland State, Australia.
= Myopterygius marathonensis (ETHERIDGE, 1888) HUENE, 1922

Holotype: QM F1448

Locality: Marathon Station, near Marathon, Western Queensland State, Australia.

Horizon: Allaru Formation.

Biostratigraphy:

Age: Early Cretaceous.

Material: Maxillary and dentary fragment.

Plastohypotype: Australian Museum, L. 549 (cast of snout and teeth).

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