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Pterotheca expansa

Gastropoda - Bellerophontida - Pterothecidae

Taxonomy
Delthyris expansus was named by Emmons (1842). It is not extant.

It was recombined as Clioderma expansa by Hall (1861); it was recombined as Pterotheca expansa by Lesley (1889), Raymond (1902), Weller (1903), Branson (1909), Foerste (1924), Shrock and Raasch (1937), Wilson (1951), Steele and Sinclair (1971), Wahlman (1992) and Wagner (2023).

Sister species lacking formal opinion data
P. spada

Synonymy list
YearName and author
1842Delthyris expansus Emmons p. 397 figs. f. 109.2
1861Clioderma expansa Hall p. 98
1889Pterotheca expansa Lesley p. 821 figs. f. 1
1902Pterotheca expansa Raymond p. 40 figs. pl. 19 f. 12
1903Pterotheca expansa Weller p. 179 figs. pl. 12 f. 35
1909Pterotheca expansa Branson p. 45 figs. pl. 7 f. 14
1924Pterotheca expansa Foerste p. 218
1937Pterotheca expansa Shrock and Raasch pp. 570 - 571 figs. pl. 5 f. 8-9, 13
1951Pterotheca expansa Wilson p. 33 figs. pl. 19-20
1971Pterotheca expansa Steele and Sinclair p. 20 figs. pl. 10 f. 5-8
1992Pterotheca expansa Wahlman pp. 183 - 184 figs. pl. 39 f. 6, 7, 10-12; pl. 40 f. 1-7
2023Pterotheca expansa Wagner p. 335

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classGastropoda
RankNameAuthor
orderBellerophontidaUlrich and Scofield 1897
suborderBellerophontina
superfamilyBellerophontoidea()
familyPterothecidae
subfamilyPterothecinae
genusPterotheca
speciesexpansa()

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.

†Pterotheca expansa Emmons 1842
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragoniteo
Composition 2: low Mg calciteo
Entire body: yesg
Adult length: 10 to < 100g
Adult width: 10 to < 100g
Adult height: 10 to < 100g
Locomotion: actively mobilef
Life habit: epifaunalf
Diet: detritivoref
Vision: limitedc
Created: 2009-03-04 10:25:08
Modified: 2009-06-05 20:53:58
Source: g = genus, f = family, o = order, c = class
References: Kiessling 2004, Hendy 2009

Age range: base of the Middle Ordovician to the top of the Turinian or 470.00000 to 453.80000 Ma

Collections (13 total)


Time interval Ma Country or state Original ID and collection number
Middle Ordovician470.0 - 458.4USA (New York) Pterotheca expansa (23122)
Turinian457.3 - 453.8Canada (Ontario) Pterotheca expansa (185429 185460 185475)
Turinian457.3 - 453.8USA (Indiana) Pterotheca expansa (104277)
Turinian457.3 - 453.8USA (Kentucky) Pterotheca expansa (100231 101377)
Turinian457.3 - 453.8USA (Missouri) Pterotheca expansa (175724)
Blackriveran457.3 - 449.6Canada (Quebec) Pterotheca expansa (63816)
Blackriveran457.3 - 449.6Canada (Ontario) Pterotheca expansa (55999 156592)
Rocklandian457.3 - 449.6Canada (Quebec) Pterotheca expansa (154703)
Rocklandian457.3 - 449.6USA (Kentucky) Pterotheca expansa (87737)