Forum Dinozaury.com

Paleoleo pisze:Czy z archeopteryksa wyewoluowały jakieś inne zwierzęta czy też był ślepą uliczką ewolucji?

Dawid Mika pisze:Archeopteryks z pewnością nie jets przodkiem dzisiejszych ptaków. Mógł dać początek jakieś innemu przedstawicielowi Archaeopterygiformes, które wymarło oczywiście bezpotomnie.
Ale potencjalny potomek tego dinozaura nie zachował się w zapisie kopalnym.

BartekChom pisze:A czy jest pewne, że archeopteryks nie był przodkiem współczesnych ptaków?

Dawid Mika pisze:Archaeopterygiformes

nazuul pisze: Nie jest pewne, i pewnie nigdy nie będzie. Zwracał już na to uwagę hanzs powyżej i ja w pierszym poście TU

nazuul pisze: Archaeopteryx jest blisko hipotetycznego przodka współczesnych ptaków, więc mógł być ich przodkiem (choć to pewnie mało prawdopodobne - zapis kopalny jest przerażająco niekompletny!).

nazuul pisze: Co do przetłumaczenia - przerasta moje siły, ale pierwsze to jakeiś wyrostki na żebrach, a drugie to kość życzeń

Tomasz Singer pisze: Cecha 80
Furcula (widełki) : (0) nieobecne (osobne kości obojczykowe), (1) zrośnięte (?), (2) z wydłużonym wyrostkiem.

BartekChom pisze:Coś źle rozumiem, na Wikipedii narysowali wymyśloną kość, czy któreś informacje są nieaktualne?

Referred- (Burgermeister Muller Museum coll.; Solnhofen specimen; sixth specimen; holotype of Wellnhoferia grandis) partial skull (~65 mm), sclerotic plates, partial mandible (~61 mm), axis, third cervical vertebra (~9 mm), partial fourth cervical vertebra, cervical ribs, partial eleventh dorsal vertebra, twelfth dorsal vertebra (~8 mm), thirteenth dorsal vertebra (~8 mm), fourteenth dorsal vertebra (8.8 mm), dorsal ribs, gastralia, (sacrum ~28 mm) partial first sacral vertebra, second sacral neural spine, third sacral neural arch, fourth sacral transverse process, fifth sacral neural arch, first caudal vertebra (5.4 mm), second caudal vertebra (6.2 mm), third caudal vertebra (6.7 mm), fourth caudal vertebra (6.5 mm), fifth caudal vertebra (7.5 mm), sixth caudal vertebra (9 mm), seventh caudal vertebra (9.7 mm), eighth caudal vertebra (9.5 mm), ninth caudal vertebra (13 mm), tenth caudal vertebra (14.2 mm), eleventh caudal vertebra (14.3 mm), twelfth caudal vertebra (15.5 mm), thirteenth caudal vertebra (15 mm), fourteenth caudal vertebra (~11 mm), partial fifteenth caudal vertebra (~11 mm), chevrons, incomplete scapulae (~51 mm), coracoids (24.5 mm), partial furcula, incomplete humeri (83 mm), partial radii (~69 mm), partial ulnae (~72 mm), partial metacarpals I, phalanges I-1 (28, 28.4 mm), manual unguals I (17.5 mm), incomplete metacarpals II (~36.6 mm), phalanges II-1 (20.1 mm), phalanges II-2 (27.5 mm), manual unguals II (17.8 mm), incomplete metacarpals III, phalanx III-1 (8 mm), phalanges III-2 (6.5 mm), phalanges III-3 (17.8 mm), manual unguals III (12 mm), manual claw sheaths, ilia (~38 mm), pubes (59.3 mm), partial ischium (~24.5 mm), femora (~67 mm), tibiae (92 mm), fibula (82.4 mm), astragali, calcanea, distal tarsals, metatarsals I (9.9 mm), phalanx I-1 (11 mm), pedal ungual I (~9.8 mm), metatarsus (II 45 mm, III ~47.5 mm, IV 45 mm), phalanges II-1 (12 mm), phalanges II-2 (12.5 mm), pedal unguals II (~14 mm), phalanges III-1 (one proximal; 13.7 mm), phalanx III-2 (11.8 mm), phalanx III-3 (10.5 mm), pedal ungual III (~10 mm), phalanx IV-1 (10 mm), phalanx IV-2 (8.5 mm), phalanx IV-3 (9.5 mm), pedal ungual IV (~12.6 mm), metatarsal V (10.5 mm), pedal claw sheaths, remiges (Wellnhofer, 1988)

(BMNH 37001; London specimen; holotype of Griphosaurus; holotype of Griphosaurus problematicus; holotype of Griphornis longicaudatus; holotype of Archaeopteryx macrura; holotype of Archaeopteryx oweni; proposed neotype of Archaeopteryx lithographica) (.46 m, 370 g) premaxilla, maxillary fragment, partial quadrate, braincase, ninth cervical vertebra, tenth cervical vertebra, first dorsal vertebra (~7 mm), second dorsal vertebra, third dorsal vertebra, fourth dorsal vertebra, fifth dorsal vertebra, sixth dorsal vertebra (~7 mm), seventh dorsal vertebra (~7 mm), eighth dorsal vertebra, ninth dorsal vertebra, tenth dorsal vertebra, eleventh dorsal vertebra (5.5 mm), twelfth dorsal vertebra (5.5 mm), thirteenth dorsal vertebra (5.5 mm), dorsal ribs, gastralia, (sacrum- ~33 mm) first sacral vertebra, second sacral vertebra, third sacral vertebra, fourth sacral vertebra, fifth sacral vertebra, fifth caudal vertebra (5.4 mm), fourth caudal vertebra, fifth caudal vertebra, sixth caudal vertebra (6 mm), seventh caudal vertebra (6.5 mm), eighth caudal vertebra (8 mm), ninth caudal vertebra (~10.5 mm), tenth caudal vertebra (~10.5 mm), eleventh caudal vertebra (11.7 mm), twelfth caudal vertebra (12.3 mm), thirteenth caudal vertebra (13 mm), fourteenth caudal vertebra (12.3 mm), fifteenth caudal vertebra (12.5 mm), sixteenth caudal vertebra (12.4 mm), seventeenth caudal vertebra (11.4 mm), eighteenth caudal vertebra (11.4 mm), nineteenth caudal vertebra (10.5 mm), twentieth caudal vertebra (9.3 mm), twenty-first caudal vertebra (8.5 mm), twenty-second caudal vertebra (7 mm), twenty-third caudal vertebra (4.3 mm), scapulae (46 mm), coracoid, furcula, humeri (75 mm), radii (65 mm), ulnae (67.5 mm), radiale, ulnare, semilunate carpal, distal phalanx I-1, manual ungual I, metacarpal II (34.4 mm), metacarpal III, manual phalanx, ilia (38 mm), pubes (51.5 mm), ischium (~25.5 mm), femora (60.5 mm), tibiae (80.5 mm), astragalus, metatarsal I fragment, phalanx I-1 (8.8 mm), pedal ungual I (~6.8 mm), metatarsal II (~40 mm), phalanx II-1 (11 mm), phalanx II-2 (11 mm), pedal ungual II (~11 mm), metatarsal III (44 mm), phalanx III-1 (12.7 mm), phalanx III-2 (11 mm), phalanx III-3 (~9.5 mm), pedal ungual III (~14 mm), distal phalanx IV-3, phalanx IV-4 , pedal ungual IV (~11 mm), metatarsal V (7.9 mm), remiges, retrices (Meyer, 1861b)

(BSP 1999 I 50; Munich specimen; Solnhofen-Aktien-Verein specimen; seventh specimen; holotype of Archaeopteryx bavarica) partial skull (~45 mm), mandibles (40 mm), atlas, axis, third cervical vertebra, fourth cervical vertebra, fifth cervical vertebra, sixth cervical vertebra, seventh cervical vertebra, eighth cervical vertebra, ninth cervical neural spine, tenth cervical neural spine, cervical ribs, first dorsal neural spine, partial second dorsal vertebra, third dorsal neural spine, seventh dorsal neural spine, eighth dorsal vertebra, ninnth dorsal vertebra, tenth dorsal vertebra, eleventh dorsal vertebra, twelfth dorsal vertebra, thirteenth dorsal vertebra, dorsal ribs, gastralia, (sacrum 22 mm) first sacral centrum, second sacral centrum, fifth sacral centrum, first caudal vertebra, second caudal vertebra, third caudal vertebra, fourth caudal vertebra, fifth caudal vertebra, sixth caudal vertebra, seventh caudal vertebra, eighth caudal vertebra, ninth caudal vertebra, tenth caudal vertebra, eleventh caudal vertebra, twelfth caudal vertebra, thirteenth caudal vertebra, fourteenth caudal vertebra, fifteenth caudal vertebra, sixteenth caudal vertebra, seventeenth caudal vertebra, eighteenth caudal vertebra, nineteenth caudal vertebra, twentieth caudal vertebra, twenty-first caudal vertebra, chevrons, scapulae (34.5 mm), coracoids (15 mm), partial furcula, humeri (~55 mm), radii (53 mm), ulnae (53 mm), ulnare, semilunate carpal, distal carpal III, metacarpal I (7 mm), phalanges I-1 (20 mm), manual unguals I (9.5 mm), metacarpals II (one distal; 25 mm), phalanges II-1 (12.5 mm), phalanges II-2 (18.5 mm), manual unguals II (10 mm), metacarpals III (one distal; ~23 mm), phalanges III-1 (one partial; 4.9 mm), phalanx III-2 (4.2 mm), phalanges III-3 (12 mm), manual unguals III (6.5 mm), manual claw sheaths, ilium (~27.5 mm), pubis (40 mm), ischia (~16 mm), incomplete femora (~46.5 mm), tibiae (~71.5 mm), fibula (69.5 mm), astragali, calcanea, two distal tarsals, metatarsals I, phalanges I-1 (7.1 mm), pedal ungual I (5.2 mm), metatarsals II (~36 mm), phalanges II-1 (~8 mm), phalanges II-2 (~8 mm), pedal unguals II (7, 7.4 mm), metatarsals III (40.5 mm), phalanges III-1 (10.8 mm), phalanges III-2 (8.5 mm), phalanges III-3 (8.4 mm), pedal unguals III (6.8, 7 mm), metatarsal IV (37 mm), phalanx IV-1 (8 mm), phalanx IV-2 (6 mm), phalanges IV-3 (~5.5 mm), phalanges IV-4 (7 mm), pedal unguals IV (6.2 mm), metatarsal V (~10 mm), pedal claw sheaths, remiges, retrices (Wellnhofer, 1993)