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Tetradium

Discussion

Was thought to be a sponge; later recognized to be an algae.

Taxonomy
Tetradium was named by Dana (1846) [Sepkoski's age data: O Llde-u O Ashg-u Sepkoski's reference number: 160]. It is not extant.

It was replaced with Prismostylus by Pojeta et al. (2003).

It was assigned to Tetradiidae by Murray (1985); to Tabulata by Sepkoski (2002); and to Rhodophyta by Steele-Petrovich (2009).

Synonymy list
YearName and author
1846Tetradium Dana
1985Tetradium Murray p. 32
2002Tetradium Sepkoski
2009Tetradium Steele-Petrovich

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RankNameAuthor
kingdomPlantae
subkingdomRhodoplantaeSaunders and Hommersand 2004
RankNameAuthor
phylumRhodophytaWettstein 1922
genusTetradiumDana 1846

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

G. †Tetradium Dana 1846
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†Tetradium approximatum Ulrich 1900
†Tetradium huronense Billings 1865
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Invalid names: Tetradium ontario Hall 1884 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available

Age range: base of the Middle Ordovician to the top of the Eastonian or 471.30000 to 449.00000 Ma

Collections (186 total)


Time interval Ma Country or state Original ID and collection number
Middle Ordovician471.3 - 458.2USA (New York) T. sp. (335)
Chazyan471.3 - 457.3Canada (Quebec) T. sp. (45281)
Middle Ordovician - Late/Upper Ordovician471.3 - 443.1USA (Alaska) T. sp. (100893)
Costonian - Harnagian458.2 - 457.2Australia (New South Wales) T. sp. (2705)
Gisbornian - Harnagian458.2 - 457.2Australia (Tasmania) T. sp. (2691)
Gisbornian - Harnagian458.2 - 457.2Australia (New South Wales) T. sp. (2703 2708 2714 2715 2716 2717)
Sandbian458.2 - 452.8China T. sp. (226116)
Sandbian458.2 - 452.8Russian Federation (Siberia) T. sp. (205386)
Caradoc458.2 - 449.5USA (Tennessee) T. sp. (80005)
Caradoc458.2 - 449.5USA (Virginia) T. cellulosum (34197 34211 34212 34213 34277 34279 34281 34324 34326 34327 34328) T. cellulosum, T. clarki (34272 34273 34276) T. cellulosum, T. columnare, T. racemosum (34215 34216 34217 34218) T. clarki, T. racemosum (34268) T. sp. (34007 34028 34029 34030 34031 34032 34152 34153 34167 34168 34169) T. sp., T. cellulosum, T. columnare, T. racemosum (34214) T. syringoporoides (33449 33450 33451 33452 33453 33549 33550 33927 33929 33930 33932 33933)
Caradoc458.2 - 449.5China (Qinghai) T. nachitaiense (80681)
Caradoc458.2 - 449.5USA (Georgia) T. cellulosum (32574 32576 32577 32823 32824 32825 32826 32832) T. columnare (32779 32783 32787 32791 32798) T. columnare, T. syringoporoides (32872 32873 32874 32875 32879) T. sp., T. syringoporoides (33103 33104 33105 33106) T. syringoporoides, T. sp. (33107)
Caradoc458.2 - 449.5Canada (Ontario) T. cellulosum (26275) T. sp. (61730)
Gisbornian - Eastonian458.2 - 449.0Australia (Tasmania) T. sp. (2685 2692)
Gisbornian - Eastonian458.2 - 449.0Australia (New South Wales) T. sp. (2719 2721)
Caradoc - Ashgill458.2 - 443.1Australia (Tasmania) T. sp. (24252)
Late/Upper Ordovician458.2 - 443.1USA (Alaska) T. sp. (100890)
Turinian457.3 - 453.8Canada (Ontario) T. cellulosum (26175 26188) T. halysitoides, T. syringoporoides (26174)
Turinian457.3 - 453.8Canada (Quebec) T. cellulosum, T. clarki, T. racemosum (174157)
Mohawkian457.3 - 451.0USA (Kentucky) T. sp. (85803 86057)
Mohawkian457.3 - 451.0USA (Tennessee) T. sp. (86088 86091 86093 86095 86110 86113 86135 86137)
Franklinian - Edenian457.3 - 450.2USA (Tennessee) T. ulrichi (5371)
Ashbyan457.3 - 449.6USA (Virginia) T. sp. (33995 33996 33997) T. syringoporoides (33544 33545 33546 33547)
Blackriveran457.3 - 449.6USA (Tennessee) T. syringoporoides (5328 5329 5331)
Blackriveran457.3 - 449.6Canada (Ontario) T. cellulosum (26172 80616) T. clarki, T. columnare (55999)
Blackriveran457.3 - 449.6USA (New York) T. cellulosum (324)
Kirkfieldian457.3 - 449.6Canada (Ontario) T. cellulosum (26192)
Rocklandian457.3 - 449.6USA (Tennessee) T. carterensis, T. cellulosum (5333) T. cellulosum (5346)
Rocklandian457.3 - 449.6USA (Kentucky) T. cellulosum (87962) T. sp. (87737)
Shermanian457.3 - 449.6USA (Tennessee) T. laxum (5361) T. laxum, T. columnare (5358) T. minus (5351) T. ulrichi (5359)
Chatfieldian453.8 - 451.0USA (Kentucky) T. sp. (34547)
Katian452.8 - 445.2China T. sp. (173372 184485 184486 184487 184488 184490)
Katian - Hirnantian452.8 - 443.1Russian Federation (Siberia) T. dietkensis (205662)
Eastonian - Marshbrookian452.3 - 454.0Australia (New South Wales) T. sp. (2720 2722)
Eastonian - Onnian452.3 - 449.5Australia (Tasmania) T. sp. (2686)
Eastonian - Onnian452.3 - 449.5Australia (New South Wales) T. sp. (2723)
Eastonian452.3 - 449.0Australia (New South Wales) T. cribriforme (2647 2648) T. duplex, T. variable (2646) T. sp. (2699 2700 2702 2707 2745 2753 2754 236049)
Richmondian449.6 - 445.5Canada (Ontario) T. huronense (173085 173116 173135 173141 173148 173320) T. ontario (22960)
Richmondian449.6 - 445.5USA (Ohio) T. sp. (368 395 215981)
Richmondian449.6 - 445.5USA (Kentucky) T. approximatum (37833 179674 179675 179676 179677 179678 179679 179680) T. sp. (72688 72692 207424 207428 207429) T. sp., T. approximatum (207421)
Richmondian449.6 - 445.5USA (Michigan) T. huronense (173082)
Richmondian449.6 - 445.5USA (Indiana) T. sp. (374 72452 72453)
Richmondian - Ashgill449.6 - 443.1USA (Ohio) T. sp. (392 393 394)
Ashgill449.5 - 443.1Canada (Ontario) T. approximatum (26304)
Ashgill449.5 - 443.1China (Zhejiang) T. zhejiangensis (80686)
Ashgill449.5 - 443.1USA (Kentucky) T. approximatum (24034 37832)
Ashgill449.5 - 443.1Russian Federation (Chukotka) T. sp. (80675)