PBDB Taxon

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

Thiara

Gastropoda - Thiaridae

Taxonomy

Thiara was named by Röding (1798). It is extant.

It was assigned to Thiaridae by Oostingh (1935), Ladd (1972); to Turritellidae by Ladd (1982); and to Thiarinae by Vaught et al. (1989).

Species

Melania abbreviata, Melania acutestriata, Melania alberti, Melania blainvillii, Melania buccinalis, Melania bullia, Melania canicularis, Melania claibornensis, Melania clavula, Melania concentrica, Melania decussata, Melania dubia, Melania dunkeri, Melania fettkei, Melania formosa, Melania fragilis, Melania herklotsi, Melania hoernesi, Melania hordacea, Melania hunteri, Melania inquinata, Melania laevigata, Melania longissima, Melania marginata, Melania miikensis, Melania multistriata, Melania nitida, Melania obovata, Melania packardi, Melania partschii, Melania plicata, Melania plicatula, Melania plieningeri, Melania polita, Melania schlotheimii, Melania semiplicata, Melania semistriata, Melania strigillata, Melania taylori, Melania tenuiplica, Melania tenuis, Melania texata, Melania triticea, Melania vaderensis, T. (Balanocochlis), T. (Plotia), T. (Sermyla), T. (Setaeara), T. scabra, T. smartsvillensis, T. tjemoroensis, T. wheatlandensis

Year	Name and author
1798	Thiara Röding
1800	Melania Lamarck
1810	Melas Montfort
1821	Melanea Sowerby p. 33
1842	Amarula Sowerby
1847	Spirilla Humphrey in Gray
1848	Hydrognoma Gistl
1871	Tiaropsis Brot
1928	Melania Nagao p. 122
1935	Thiara Oostingh p. 10
1972	Thiara Ladd p. 20
1982	Thiara Ladd p. 32
1989	Thiara Vaught et al. p. 28

Age range

Maximum range based only on fossils: base of the Anisian to the top of the Late/Upper Pleistocene or 246.70000 to 0.01170 Ma
Minimum age of oldest fossil (stem group age): 241.464 Ma

Collections (107 total)

Time interval	Ma	Country or state	Original ID and collection number
Anisian	246.7 - 241.464	Germany (Baden-Württemberg)	Loxonema schlotheimii (206384)
Julian	237.0 - 233.6	Italy	Melania longissima, Melania obovata, Melania tenuis, Melania texata, Melania concentrica (137429)
Carnian	237.0 - 227.3	Austria (Tyrol)	Melania multistriata (202331)
Carnian	237.0 - 227.3	Austria	Melania multistriata (206002)
Tuvalian	233.6 - 227.3	Austria	Melania multistriata (149435)
Tuvalian	233.6 - 227.3	Austria (Tyrol)	Melania multistriata (203207)
Angulata	201.4 - 199.5	Luxembourg	Melania sp., Melania abbreviata (149756)
Angulata	201.4 - 199.5	France (Lorraine)	Melania turbinata, Melania cyclostoma, Melania theodori, Melania unicingulata, Melania usta, Melania crassilabrata, Melania abbreviata (53947)
Valanginian - Hauterivian	137.05 - 125.77	Brazil (Bahia)	Melania terebriformis (51911)
Cenomanian	100.5 - 93.9	Canada (Alberta)	Melania sp. (89191)
Campanian	83.6 - 72.2	Canada (Alberta)	Melania whiteavsi (87518 87519)
Early/Lower Campanian	83.6 - 72.2	France (Provence-Alpes-Côte d'Azur)	Melania praelonga (220133)
Late/Upper Campanian	83.6 - 72.2	Canada (Alberta)	Melania wyomingensis (87455)
Late/Upper Campanian	83.6 - 72.2	France (Provence-Alpes-Côte d'Azur)	Melania sp. (220134)
Middle Campanian	83.6 - 72.2	Canada (Alberta)	Melania whiteavesi (87453)
Maastrichtian	72.2 - 66.0	France (Provence-Alpes-Côte d'Azur)	Melania penoti (186052)
Paleogene	66.0 - 23.04	Japan (Nagasaki)	Melania miikensis (203223)
Paleogene	66.0 - 23.04	Japan (Chikugo)	Melania miikensis (203132)
Selandian - Thanetian	61.66 - 56.0	New Zealand	Melania sp. (64704)
Early/Lower Eocene	56.0 - 48.07	Brazil	Melania terebriformis (151586)
Eocene	56.0 - 33.9	Japan (Chikugo)	Melania milkensis (203228)
Lutetian	48.07 - 41.03	France	Bulimus decussatus (184154) Melania canicularis, Melania nitida, Melania semistriata, Melania fragilis (184110) Melania dubia (184143) Melania hordacea (184108) Melania marginata (184107) Melania semiplicata, Melania nitida (184109)
Lutetian	48.07 - 41.03	USA (California)	T. sp. (16712)
Bartonian	41.03 - 37.71	USA (Washington)	Melania fettkei (139020) Melania packardi, Melania vaderensis, Melania fettkei (207129)
Bartonian	41.03 - 37.71	USA (Alabama)	T. aldrichi (90600)
Bartonian	41.03 - 37.71	New Zealand	Melania sp. (67590)
Late/Upper Eocene	37.71 - 33.9	United Kingdom (England)	Melania angulata, Melania fasciata, Melania muricata, Melania costata (39662) Melania costata (40423 40851) Melania excavata (40097 40292 40293 40295 40300) Melania fasciata (39674 39676 39704 39705 40270 40271 40770 40771) Melania inflata (40267) Melania muricata (40268 40379 40381 40382 40383 40384 40387 40388 40902 40914 40916 40922 40926 40929) Melania muricata, Melania turritissima (40913) Melania polygyra, Melania turritissima (39828) Melania sp. (40297 40378 40890 40893 40910) Melania turritissima (40377 40907 40917 40918) Melania turritissima, Melania forbseii (40905) Melania turritissima, Melania muricata (40911)
Late/Upper Eocene	37.71 - 33.9	United Kingdom	Melania excavata (40299) Melania sp. (40772 40904)
Late/Upper Eocene	37.71 - 33.9	Indonesia	Melania melaviensis (78563)
Priabonian	37.71 - 33.9	USA (California)	T. smartsvillensis, T. wheatlandensis (205787)
Priabonian	37.71 - 33.9	United Kingdom (England)	Melania carinata, Melania subulaspira, Melania circineta (39643)
Early/Lower Miocene	23.04 - 15.98	Indonesia	Melania samarangana (70092)
Miocene	23.04 - 5.333	Indonesia	Melania herklotsi (81715 81716)
Late/Upper Miocene	11.63 - 5.333	Spain (Albacete)	Melania sp. (41930)
Late/Upper Miocene	11.63 - 5.333	Indonesia	Melania semigranosa (70091) Melania sindangbaranensis (70098)
Early/Lower Pliocene	5.333 - 3.6	Indonesia (Java)	Melania gendinganensis, Melania sondeiana (45344)
Pliocene	5.333 - 2.58	Indonesia	Melania subfossilis, Melania sitoliensis (70123) Sermyla tornatella (84543) T. tjemoroensis (84520 84530 84531 84533 84534 84539 84540 84541 84542)
Pliocene	5.333 - 2.58	India	Plotia balteata (77658)
Late/Upper Pliocene	3.6 - 2.58	Indonesia	Melania sondeiana, Melania gendinganensis, Sermyla tornatella (70084)
Pleistocene - Neogene	2.58 - 2.58	Greece	Melania sp. (34607)
Pleistocene	2.58 - 0.0117	Vanuatu	Thiaria scabra (78047)
Late/Upper Pleistocene	0.129 - 0.0117	Japan	T. libertina (96943 96944)